chemistry Crossword Puzzles

Cooking chemistry 2024-02-08

Across

when you eat the taste is decided as…
low concentration to high concentration
tenderizes food
Heating sugar
baking soda and acid in a bake good
heat+ amino acids+sugar
denaturation molecules unfolding from heat
kills bacterias
point The temperature at which a compound transitions from a solid to a liquid
Process that transforms liquid food into a solid state.

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Gliadin+ Glutenin
Carbs
Gives you energy
when 2 thing don’t mix then something makes it mix
enhances
gelatinization Heating up a mixture of starch and water to create a thicker consistency.
savory or meaty taste
Yeast eating sugar reaction
a sugar
concentration to low concentration diffusion

20 Clues: Carbs • a sugar • enhances • Heating sugar • tenderizes food • kills bacterias • Gives you energy • Gliadin+ Glutenin • savory or meaty taste • heat+ amino acids+sugar • Yeast eating sugar reaction • baking soda and acid in a bake good • when you eat the taste is decided as… • low concentration to high concentration • denaturation molecules unfolding from heat • ...

Cooking Chemistry 2024-02-09

Across

uses acids and bases
a way to creat acids
form of fat that comes from a animal
cooks food
uses mechanical means
substancias traveling from a area of low concentration to high concentration through a semi-permeable membrane
can get cooked off meat
browns and create nutty flavor
substances transferring from an area of high concentration to a area of low concentration
heating sugar
a substance that helps mix 2 or more liquids that would normally not mix
level of sourness

Down

dough rising due to yeast
a reaction that is reversible
the process of proteins becoming amino acids
when a molecule has a positive area at one end and a negative area at the other end
form of fat that comes from a plant
collects moisture
sour
when two or more substances interact to creat a different product

20 Clues: sour • cooks food • heating sugar • collects moisture • level of sourness • uses acids and bases • a way to creat acids • uses mechanical means • can get cooked off meat • dough rising due to yeast • a reaction that is reversible • browns and create nutty flavor • form of fat that comes from a plant • form of fat that comes from a animal • the process of proteins becoming amino acids • ...

Cooking Chemistry 2024-02-09

Across

4 parts of cooking —changes flavors and browns
The reaction that browns using protein and sugar
To cook food in water above 212ºF
4 parts of cooking — brightens flavor
the process of browning sugar
A protein in wheat
Dry heat that uses oil and a pan
low to high concentration
The breakdown of carbs using bacteria or yeast

Down

4 parts of cooking — helps cook evenly
The process of protein breaking down
4 parts of cooking — enhances flavor
Substance used in dough to make it rise
Change that doesn’t change the chemical makeup
Change that is irreversible and changes the chemical makeup
Cooking food on high heat in an oven
To cook in an oven using dry heat
High to low concentration
to work the dough to develop glutens in flour
Using steam to cook food

20 Clues: A protein in wheat • Using steam to cook food • High to low concentration • low to high concentration • the process of browning sugar • Dry heat that uses oil and a pan • To cook food in water above 212ºF • To cook in an oven using dry heat • The process of protein breaking down • 4 parts of cooking — enhances flavor • Cooking food on high heat in an oven • ...

Environmental Chemistry 2025-01-07

Environmental Chemistry crossword puzzle

Across

Substance that enriches soil so that plants will grow better
Measurements used to describe very small concentrations of chemicals
pH of 7; neither an acid or a base
Liquid that dissolves and carries substances as it passes through soil
Reaction between an acid and a base that produces water and salt
The water that fills all the spaces in the soil
Mixing of a substance with air or water; reduces the substances concentration
Compound that dissolves in a water to form a solution with a pH higher than 7
Large pipes that carries water from street drains into a river or lake
Organic molecules made up of atoms of carbon, hydrogen and oxygen; pasta
Organic molecules made up of atoms of carbon, hydrogen and oxygen; chicken and beef
Wastewater containing materials from your kitchen, bathroom and laundry
Compound that dissolves in water to form a solution that has a pH lower than 7
Chemicals used to kill pests
Gases in Earth's atmosphere that trap the heat radiated from the Sun; ex. water vapour
Nutrients that organisms need in only small amount
Scattering of a substance away from its source
Organic molecules made up of atoms of carbon, hydrogen and oxygen; fats and oils
Building blocks of proteins

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Any change to the environment that produces a condition harmful to living things
Wastewater released from a factory or sewage treatment plant
DNA and RNA
Process in which molecules move from an area of higher concentration to one of lower
CO; colourless, odourless gas found in the exhaust of internal combustion vehicle
Animals without backbones
Elements and compounds that organisms need for living, growing and reproducing
When nitrogen combines with oxygen as a result of fuel combustion; NO
Are one type of substance monitored to determine water quality; mercury and zinc
Forms when sulfur combines with oxygen in the air; major air pollutant; SO2
Fuel formed from dead plants and animals; coal, oil and natural gas
Tiny spaces between soil or mineral grains
Colourless, odourless gas found at ground level, result of industrial processes and vehicle
Increase in concentration of a chemical or element in a single organism
Underground material used to collect sewage
Increase in concentration of a chemical or element as it moves up the food chain
Substance made up of only type of atom
Nutrients that organisms need in large amounts
Breakdown of materials by organisms such as earthworms, bacteria and fungi
Measure of the percent of hydrogen ions in a solution

39 Clues: DNA and RNA • Animals without backbones • Building blocks of proteins • Chemicals used to kill pests • pH of 7; neither an acid or a base • Substance made up of only type of atom • Tiny spaces between soil or mineral grains • Underground material used to collect sewage • Nutrients that organisms need in large amounts • Scattering of a substance away from its source • ...

Organic Chemistry 2025-03-13

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A positively charged subatomic particle found in the nucleus of an atom.
The ability of carbon atoms to form long chains by bonding with other carbon atoms.
A type of hydrocarbon in which carbon atoms form a ring structure.
A class of organic compounds in which an oxygen atom is bonded to two alkyl or aryl groups.
The branch of chemistry that studies carbon-containing compounds.
A simple hydrocarbon consisting of one carbon and four hydrogen atoms.
The regions of space where electrons are likely to be found.
The system used for naming organic chemical compounds.
A group derived from an alkane by removing one hydrogen atom.
The electrons in the outermost energy level of an atom that participate in bonding.
A type of organic compound containing a hydroxyl (-OH) functional group.
A type of chemical bond formed through the transfer of electrons from one atom to another.
A three-carbon alkane commonly used as fuel.
A negatively charged subatomic particle found in orbitals around the nucleus.
Atoms of the same element that have different numbers of neutrons.
A general term for any force that holds atoms together in a molecule.
A rule stating that electrons will occupy orbitals singly before pairing up.
The specific regions around the nucleus where electrons exist at different distances.
A rule stating that some atoms, such as hydrogen and helium, achieve stability with two valence electrons.
Hydrocarbons that contain at least one double bond between carbon atoms.
A measure of an atom's ability to attract electrons in a chemical bond.
A representation of molecular bonding that shows valence electrons as dots around atoms.

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A term used to describe molecules that have an even distribution of electron density.
A term used to describe molecules that have an uneven distribution of electron density.
A type of chemical bond in which atoms share electrons.
A class of organic compounds characterized by a carbonyl group (C=O) bonded to two carbon atoms.
A neutral subatomic particle found in the nucleus of an atom.
A rule stating that atoms tend to gain, lose, or share electrons to achieve eight valence electrons.
A type of covalent bond formed by the side-by-side overlap of p orbitals.
The simplest type of hydrocarbon, consisting only of single bonds between carbon atoms.
Organic compounds containing a carbonyl group (-CHO) at the end of the carbon chain.
A type of covalent bond formed by the overlap of atomic orbitals in a head-to-head manner.
An organic acid containing a carboxyl (-COOH) functional group.
A fundamental element present in all organic compounds.
A type of organic compound derived from carboxylic acids, where the hydroxyl (-OH) group is replaced by an alkoxy (-OR) group.
The dense central part of an atom, containing protons and neutrons.
The smallest unit of matter that retains the properties of an element.
Organic compounds consisting entirely of hydrogen and carbon.
A six-carbon alkane.
A number that describes the properties of atomic orbitals and the properties of electrons in an atom.

40 Clues: A six-carbon alkane. • A three-carbon alkane commonly used as fuel. • The system used for naming organic chemical compounds. • A type of chemical bond in which atoms share electrons. • A fundamental element present in all organic compounds. • The regions of space where electrons are likely to be found. • A neutral subatomic particle found in the nucleus of an atom. • ...

Chemistry Basics 2025-10-01

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The model of the atom that has electrons orbiting the nucleus.
This is the last name of the person who had the first widely accepted atomic theory.
The state that electrons are in when they gain energy and move away from the nucleus.
The name for rows on the periodic table.
Some elements located on either side of the "stair step" on the periodic table.
A solution that is full of solute.
A positively charged particle in the atom.
Discovered the nucleus in his famous Gold Foil experiment.
The scientist who suggested electrons were in energy levels orbiting the nucleus.
A substance that has one thing that traps and suspends another.
The smallest subatomic particle, found in energy levels around the nucleus.
A measure of the amount of mass in a given amount of volume.

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A measure of how fast something will heat up or cool down.
The name for elements in the first group on the periodic table.
The name for the electrons in the outermost energy level.
The model of the atom that describes electrons as being tiny and indivisible.
This element has 12 protons.
The state that electrons are in when they are in the lowest energy level possible.
A process that uses boiling points to separate substances.
These elements have full outermost shells and do not react.
Atoms of the same element with a different number of neutrons.
The model of the atom that is mathematical.
Like charges do this to each other.
A place in the atom where pairs of electrons are likely to be found.
The father of the modern periodic table.

25 Clues: This element has 12 protons. • A solution that is full of solute. • Like charges do this to each other. • The name for rows on the periodic table. • The father of the modern periodic table. • A positively charged particle in the atom. • The model of the atom that is mathematical. • The name for the electrons in the outermost energy level. • ...

Chemistry Project 2025-10-20

Across

Near each other
Closed-packed
The process where a substance changes directly from a solid to a gas without becoming a liquid first.
Molecules in solid, liquid and gas
A subatomic particle found in the nucleus of an atom, alongside protons.
a pure substance that cannot be broken down into simpler substances by chemical means.
solid to liquid
Horizontal(Periodic Table)
made up of 2 or more elements chemically combined

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atomic number is 19
The passive movement of particles from an area of higher concentration to an area of lower concentration.
Made up of 2 or more subtances not chemically combined
Far from each other
Comparing of the same element
Electrically neutral group of two or more atoms that are chemically bonded together.
A subatomic particle with a positive electric charge found in the nucleus of every atom.
liquid to solid
liquid to gas but only occurs on the surface
Liquid to gas
A subatomic particle with a negative electric charge that orbits the nucleus of an atom.

20 Clues: Closed-packed • Liquid to gas • Near each other • liquid to solid • solid to liquid • atomic number is 19 • Far from each other • Horizontal(Periodic Table) • Comparing of the same element • Molecules in solid, liquid and gas • liquid to gas but only occurs on the surface • made up of 2 or more elements chemically combined • Made up of 2 or more subtances not chemically combined • ...

Chemistry Terms 2025-08-18

Across

a solution with more solute than solvent
liquids that don't mix to form a homogeneous mixture
what dissolves the solute
what indicates the uncertainty of a measurement in a percentage
device that calculates data in a constant manner
two or more substances that mix into each other
making a liquid weaker by adding more solvent
the study of how a solution is formed
graph that shows relationship between substance and temperature
when a solution's concentration is gradually greater than the saturation point
when a solution's concentration is greater than the saturation point
device where uncertainty is smallest increment

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the amount of a substance that reacts with or is equivalent to another substance in a chemical reaction
a substance formed when a solute dissolves in a solvent
how a substance reacts when a solute enters a solvent
a technique used to convert units of measurement by multiplication
the mass of a substance divided by its volume
a mixture that is uniform and you cannot see the substances
what's dissolving in a solution
word for a solution where the solvent is water
an expression used to change the units without changing the value
a characteristic that doesn't depend on amount of matter
curved surface of a liquid in container
how much of a solute is present in a solution
when a solution's concentration is less than the saturation point
the study of chemical and physical rules ocurring at the boundary between two phases of matter

26 Clues: what dissolves the solute • what's dissolving in a solution • the study of how a solution is formed • curved surface of a liquid in container • a solution with more solute than solvent • the mass of a substance divided by its volume • making a liquid weaker by adding more solvent • how much of a solute is present in a solution • ...

chemistry 2 2025-09-30

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unit calculated by dividing Mass by volume D=m/v
Mixture- particles are evenly distributed throughout lemonade
only I kind of molecule
Process where 2 or more substances bond and change to form a new substance
the smallest piece of a pure substance (Compound) you can have.
Law of __________The exact mass that goes into a chemical reaction must come out in its products
Smallest unit of a compound
a substances ability to burn
theory of matter- theory that matter comes in large strands that Cannot be broken down into smaller pieces.
insulators, do not conduct electricity.
smallest piece that is made of one kind of Atom
of matter solid liquid or gas l

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of Elements When elements are put in order by their atomic number or mass properties of the elements Repeat.
2 or more substances that keep their own properties
(how easily do heat & electricity move through the substance
of Definite proportions - Atoms bond in specific ratios to make Specific compounds. In specific ratios
ability to berd and change shape without shattering.
theory matter Democritus 400BC said matter Could be broken down into smaller bits but eventually you would get a small piece that couldn't be broken any further..
is the Smallest unit of an element
Mixture particles of different things are visible Salad
2 or more elements bonded to create a new substance.
2 or more atoms bonded to make Something new Water H₂O Salt Wall
- metals on zig zag Semiconductors
the ability to bond with other atoms
resistance to flow (thickness)
transmit heat & electricity easily., Malleability,
I kind of atom
- the smallest piece of a pure element youCan have
Scale of which substances Scratch Other substances.

29 Clues: I kind of atom • only I kind of molecule • Smallest unit of a compound • a substances ability to burn • resistance to flow (thickness) • of matter solid liquid or gas l • is the Smallest unit of an element • - metals on zig zag Semiconductors • the ability to bond with other atoms • insulators, do not conduct electricity. • smallest piece that is made of one kind of Atom • ...

Basic Chemistry 2024-09-24

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- A solution that resists pH changes.
- Hydrophobic molecules, including fats and oils.
- A lipid involved in cell membrane structure.
Reaction - A reaction where parts of two compounds exchange places.
- The basic unit of a chemical element.
- Deoxyribonucleic acid, the molecule of heredity.
- Ribonucleic acid, involved in protein synthesis.
- An atom or molecule with a net electric charge.
- A substance that dissolves a solute.
- A scale measuring acidity or alkalinity.
- A substance that speeds up a reaction without being consumed.
- A reaction that joins two molecules and releases water.
- Organic compounds used for energy.
- A structural carbohydrate in plant cell walls.
- The gain of electrons by an atom or molecule.
- A stored form of glucose in animals.
- Attracted to water.
- The maintenance of a stable internal environment.
- A molecule that prevents oxidative damage.
- The loss of electrons from an atom or molecule.
- The breakdown of a compound into smaller parts.
- A substance that provides nourishment essential for growth and the maintenance of life.
- A positively charged ion.
- A chemical process that splits a molecule by adding water.

Down

- Fats with no double bonds in fatty acids.
- Variants of an element with the same number of protons but different neutrons.
- The breaking-down phase of metabolism.
- A macromolecule made of amino acids.
Reaction - A process that leads to the transformation of one set of chemical substances to another.
Radical - An atom or molecule with an unpaired electron, which can cause damage to cells.
- Fats with one or more double bonds.
- Repellent to water.
- The building-up phase of metabolism.
- The building block of nucleic acids.
Group - A specific group of atoms within a molecule responsible for its characteristic properties.
- The substance dissolved in a solution.
- A negatively charged ion.
- A group of atoms bonded together.
- The sum of all chemical reactions in the body.
Acid - The building blocks of proteins.
- The reactant on which an enzyme acts.
- A type of lipid with a four-ring structure.
- A protein that accelerates chemical reactions.
- A segment of DNA that encodes for a specific protein or function.
Bond - A weak bond between polar molecules.
- A bond formed through the transfer of electrons.
- A bond formed by the sharing of electrons.
- The process of combining smaller components to form a larger molecule.
- A molecule’s distribution of charge.
- Adenosine triphosphate, the energy currency of cells.

50 Clues: - Repellent to water. • - Attracted to water. • - A negatively charged ion. • - A positively charged ion. • - A group of atoms bonded together. • - Organic compounds used for energy. • - A solution that resists pH changes. • - Fats with one or more double bonds. • - A macromolecule made of amino acids. • - The building-up phase of metabolism. • ...

Chemistry Review 2024-09-25

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Monomers of lipids
Smallest amount of a compound; made by combining atoms
Element that is contained in water, and, along with carbon and oxygen, makes up about 95% of living things
compounds consisting of a nucleoside linked to a phosphate group; they form the basic structural unit of nucleic acids such as DNA
Fats and oils
a compound made up of two hydrogen atoms and one oxygen atom which is essential for life on Earth
The molecule on which an enzyme binds and acts
A liquid mixture in which the parts are uniformly distributed
Make up all living things
Smallest part of an element; basic unit of matter
Deoxyribonucleic acid; biomolecule sometimes called the “blueprint of life”; encodes directions for cells to follow; double stranded, appears kind of like a spiral ladder
_____ Acids: Encode information/instructions; examples are DNA and RNA
a state of balance
main source of energy (directly or indirectly) for most life on Earth
Compounds that usually don’t contain carbon, and are associated with abiotic (nonliving) things
a property of matter; the ability to do work

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Used for energy (contain C, H, O, ex), found in pasta and bread
Active ____: Where an enzyme attaches to a substrate
Pure substances made of atoms
pH ____: Scale that shows if something is acidic, basic, or neutral; measure H ion concentration
Two or more chemically bonded elements; represented by chemical formulas
Proteins that speed up or slow down chemical reactions
smallest structural and functional part of an organism; all living things are made up of one or more cells
Compound associated with living things; also known as macromolecules or biomolecules
Monomers that make up carbohydrates
energy-carrying molecule found in the cells of all living things
basic building blocks of biomolecules
Element that is contained in water, and, along with carbon and hydrogen, makes up about 95% of living things; also inhaled in by many animals
A substance that increases the rate of a chemical reaction without itself undergoing a permanent change
____ Acids: Organic molecules that function as the building blocks of proteins/biomolecules
Combination of substances that can be separated
Element that, along with hydrogen and oxygen, makes up about 95% of living things
Ribonucleic acid; reads messages carried by DNA; looks kind of like DNA, but is single-stranded

33 Clues: Fats and oils • Monomers of lipids • a state of balance • Make up all living things • Pure substances made of atoms • Monomers that make up carbohydrates • basic building blocks of biomolecules • a property of matter; the ability to do work • The molecule on which an enzyme binds and acts • Combination of substances that can be separated • ...

Chemistry Vocab 2024-06-07

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The resistance to flow by fluid.
Negatively charged particles in the Nucleus.
Has properties of both nonmetal and metal.
Flexible.
6.02 x 10^23 constant creator.
Same elements with different amounts of Neutrons.
Horizontal grouping of elements.
Substances that react.
Substances that are produced.
Condensation or evaporation.

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Center of Atom.
Positively charged particles in the Nucleus.
Number in front of each substance in an equation.
Solid changing directly into vapor.
Particles in the Nucleus with no charge.
A type of matter with a fixed composition.
The reaction of a compound breaking down.
A reaction with CO2 and H2O as the products.
Pressure unit.
Can be Hammered.

20 Clues: Flexible. • Pressure unit. • Center of Atom. • Can be Hammered. • Substances that react. • Condensation or evaporation. • Substances that are produced. • 6.02 x 10^23 constant creator. • The resistance to flow by fluid. • Horizontal grouping of elements. • Solid changing directly into vapor. • Particles in the Nucleus with no charge. • The reaction of a compound breaking down. • ...

Nuclear Chemistry 2025-06-04

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Fusion occurs in the ____.
Unstable nuclei are ____.
Minimum mass required for chain fission reaction is ____ mass.
Man-made elements are by ___ of an isotope with nuclear "bullets".
The nucleus makes up almost all the ____ of the atom.
Large nuclei need a neutron to _____ ratio of over 1:1 to be stable.
The time it takes half the mass of a radioactive isotope to decay is called ______ life.
Changing into another element through radioactive decay.
Protons and neutrons.
Splitting of a heavy nucleus.
One danger of nuclear reactors is the breakdown of cooling systems to allow _______-down.
Emitted particle identical to helium nucleus.
Force of attraction between nearest neighbor nucleons.
Electron emitted when neutron changes into proton in nucleus.

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The fuel for fusion reactions.
Combination of two nuclei into one.
A nuclear ____ controls fission chain reactions to produce usable energy.
Fusion reactions only occur at extremely high ____.
Nuclear bullets used in fission reactions
When electrical _____ between protons is greater than strong forces, the nucleus will be unstable.
Reaction occurring when neutrons produced in fission reaction strike other nuclei.
Atoms of the same element with different masses.
Emission with no mass or charge.
____ nuclei, with mass numbers over 82, are always unstable.

24 Clues: Protons and neutrons. • Unstable nuclei are ____. • Fusion occurs in the ____. • Splitting of a heavy nucleus. • The fuel for fusion reactions. • Emission with no mass or charge. • Combination of two nuclei into one. • Nuclear bullets used in fission reactions • Emitted particle identical to helium nucleus. • Atoms of the same element with different masses. • ...

Physical Chemistry 2025-05-22

Across

The volume, in dm cubed, of 2 moles of any gas at RTP.
Study of the patterns that emerge within the periodic table.
A soluble base.
Six hundred and two sextillion.
Type of reaction in which the enthalpy decreases
The amount of product produced during a chemical reaction.
Atoms of the same element with different atomic masses.
Formula showing the exact number of atoms of each element present in a molecule.
separation of electrical charge within a molecule or a bond, resulting in one end having a partial positive charge (δ+) and the other a partial negative charge (δ-).
The ability of a substance to dissolve.
A common method of volumetric analysis.
Formula showing the simplest whole number ratio of elements in a compound.
An area of space where an electron may be found.
The ideal gas equation.

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The studey of the amounts of substances that are involved in chemical reactions.
41st element of the periodic table
Gain of electrons
Molecular shape with bond angles of 107 degrees.
A proton donor.
Technique used to measure enthalpy changes practically based on changes in temperature during a reaction
Type of reaction in which the enthalpy increases
A piece of equipment that can be used to find isotopic masses and abundances of a sample.
Molecular shape with bond angles of 109.5 degrees.
Covalent bond in which both of the shared electrons are from the same species.
Loss of electrons
The amount of energy stored in a chemical system.
Energy required to remove electrons from an atom.

27 Clues: A soluble base. • A proton donor. • Gain of electrons • Loss of electrons • The ideal gas equation. • Six hundred and two sextillion. • 41st element of the periodic table • The ability of a substance to dissolve. • A common method of volumetric analysis. • Molecular shape with bond angles of 107 degrees. • Type of reaction in which the enthalpy decreases • ...

Chemistry Final 2025-05-13

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Term that refers to double bonds in a covalent compound
Class of elements that have properties of both metals and nonmetals
Scientist credited with the discovery of the mole
Group 1 on the periodic table
In a solution this is the substance that is dissolved
Amount of energy required to remove an electron from an atom
SI unit for amount of a substance
Term that refers to single bonds in a covalent compound
Positively charged ions, typically metals
Starting substances in a chemical reaction
Scientist credited with discovering the first periodic table
Type of reaction in which one complex substance breaks down
Group 18 on the periodic table
Type of bonding that occurs between two nonmetals
Property of metals, shiny
Ability of an atom to attract electrons within a bond
Type of bonding that occurs between a metal and a nonmetal
Group of atoms that are always found in pairs (HNOFClBrI)

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Term used to describe a covalent compound that has multiple correct Lewis structures
Finals substances in a chemical reaction
Type of reaction that requires fuel and oxygen and produces carbon dioxide and water
Type of bonding that occurs between two metals
Group 2 on the periodic table
Group 17 on the periodic table
Type of covalent bond in which electrons are unequally shared
Type of reaction in which two simple substances combine to form a complex one
Property of metals, ability to be flattened and shaped
Property of metals, ability to be pulled into wires
Negatively charged ion, typically nonmetals
In a solution this is the substance that does the dissolving
Scientist credited with discovering the modern periodic table
Half the distance between adjacent nuclei of two corresponding atoms
Group of atoms that function as one charged substance
Type of covalent bond in which electrons are shared equally

34 Clues: Property of metals, shiny • Group 2 on the periodic table • Group 1 on the periodic table • Group 17 on the periodic table • Group 18 on the periodic table • SI unit for amount of a substance • Finals substances in a chemical reaction • Positively charged ions, typically metals • Starting substances in a chemical reaction • Negatively charged ion, typically nonmetals • ...

Chemistry Terminology 2026-01-07

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Very reactive non-metals
Multiple atoms bound together
_____ Number: an identifying number that is unique for each element
The process of turning a solid into a gas
The process of turning a liquid into a gas
A powder that forms when two liquids are mixed together
The same type of atom, either separate or bonded together
_______ metals: Elements in the middle of the Periodic Table with low-reactivity
A negatively charged subatomic particle
A row on the periodic table
A state of matter characterized by low-particle movement
______ property: A property describing the ability for the substance to interact with something else
The process of turning a solid into a liquid
Elements that are dull, brittle, and poor conductors of electricity
__________ metals (Two Words: 8,5): Reactive metals, but not as strongly as Group 1
The process of turning a gas into a liquid
Made up of two or more substances

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A state of matter where particles move very quickly, overcoming attractive forces
_____ Metals: Very strongly reactive metals
Elements that are shiny, malleable, and conduct electricity
_____ Change: the chemical composition of the substance has changed
_____ change: the chemical composition of the substance has not changed
_____ Electrons: Electrons in the outermost orbital of the atom
The process of turning a gas into a solid
Different types of atoms, bonded together
A positively charged subatomic particle
_____ Mixture: A mixture that is non-uniform - you can each type of substance
A column on the periodic table
______ property: A property describing the substance by itself
_____ Number: Protons + Neutrons
A neutral subatomic particle
The process of turning a liquid into a gas
Elements with properties of metals and non-metals
_____ Mixture: A mixture that appears uniform in composition; A solution
A state of matter where particles resist some forces of attraction and can flow around each other
_____ Gases: Non-reactive gasses
_____ substance: A substance that is made up of only one type of particle

37 Clues: Very reactive non-metals • A row on the periodic table • A neutral subatomic particle • Multiple atoms bound together • A column on the periodic table • _____ Number: Protons + Neutrons • _____ Gases: Non-reactive gasses • Made up of two or more substances • A positively charged subatomic particle • A negatively charged subatomic particle • ...

CHEMISTRY CROSSWORD 2025-07-21

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contains two or more elements or kinds of atoms combined chemically in definite proportions by mass, can be separated by chemical means only
a type of chemical bond between two metal atoms
a type of chemical bond between a metal atom and a non-metal atom
change in the intrinsic properties and constitution of the substance
a mixture consists of only one phase
an electrolyte that yields neither hydrogen or hydroxide from the dissolve molecules
soapy or slippery in water solutions
homogeneous mixture of two or more substances
compounds that contain carbon and which comes from living or organic sources like plants and animals
perfectly uniform and definite in composition, can either be an element or a compound

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a mixture consists of two or more phases
a type of matter change that cause changes in the extrinsic properties of a substance's chemical composition
a type of chemical bond between two non-metal atoms
possess Tyndal effect, with Brownian movement the molecules are suspended in a medium
simplest form of a substance that cannot be decomposed by a simple chemical means, contains only one kind of atom
substances composed of two or more elements or compounds which are not chemically combined
heterogeneous mixture of two or substances
a type of inorganic compound that contains hydrogen and yields hydrogen ions in water solutions
compounds that do not contain carbon, and which usually are found in minerals and earthy materials
a type of inorganic compound that consist of oxygen and one other element

20 Clues: a mixture consists of only one phase • soapy or slippery in water solutions • a mixture consists of two or more phases • heterogeneous mixture of two or substances • homogeneous mixture of two or more substances • a type of chemical bond between two metal atoms • a type of chemical bond between two non-metal atoms • ...

CHEMISTRY CROSSWORD 2025-07-28

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liquid turns into solid
a mixture with only one phase
Change in state of appearance, not composition
solid turns into liquid
two or more substance physically combined
Measure how much matter is in an object
Pure substance made of one type of atom
liquid turns into gas
Substance made from atoms of different element
has definite volume but not shape

Down

a mixture that consist with two or more phase
does not have definite shape or volume
contains carbon which are from living organic sources like plants and animals
solid directly turn to gas
Smallest Unit of matter
gas turns into liquid
A change that forms new substance
has definite shape and volume
a distinct form of matter ( solid, liquid, gas )
does not contain carbon which is found in minerals and earthy materials

20 Clues: gas turns into liquid • liquid turns into gas • liquid turns into solid • Smallest Unit of matter • solid turns into liquid • solid directly turn to gas • a mixture with only one phase • has definite shape and volume • A change that forms new substance • has definite volume but not shape • does not have definite shape or volume • Measure how much matter is in an object • ...

CHEMISTRY CROSSWORD 2025-07-29

Across

The process by which a solid changes to a liquid.
A measure of the average kinetic energy of particles in a substance.
A subatomic particle with no charge, found in the nucleus of an atom.
A substance that produces OH- ions in solution
A pure substance consisting only of atoms that all have the same numbers of protons.
State of matter with a definite volume but no definite shape.
The amount of space that a substance or object occupies.
A subatomic particle with a positive charge, found in the nucleus of an atom.
A measure of mass per unit volume.
State of matter with no definite shape or volume.

Down

The smallest unit of an element that retains the chemical identity of that element.
A homogeneous mixture of two or more substances.
Anything that has mass and takes up space.
A group of two or more atoms held together by chemical bonds.
A negatively charged subatomic particle that orbits the nucleus of an atom.
A pure substance made of two or more elements chemically combined in a fixed ratio.
The rapid vaporization of a liquid, occurring when a liquid is heated to its boiling point.
A substance containing two or more substances that are not chemically combined.
A measure of the amount of matter in an object.
State of matter with a definite shape and volume.

20 Clues: A measure of mass per unit volume. • Anything that has mass and takes up space. • A substance that produces OH- ions in solution • A measure of the amount of matter in an object. • A homogeneous mixture of two or more substances. • The process by which a solid changes to a liquid. • State of matter with a definite shape and volume. • ...

ADVANCED CHEMISTRY 2026-02-25

Across

- Shared‑electron bond.
- Compound of only carbon and hydrogen.
- Outer‑shell bonding electron.
- Non‑aromatic cyclic compound.
- Oxygen linking two alkyl groups.
- Study of carbon compounds.
- Non‑aromatic carbon chains or rings.
- Compound with an –OH group.
- Describes electron energy and position.
- Atoms aim for 8 valence electrons for stability.
- Molecule with partial charge separation.
- Hydrocarbon with a triple bond.
- Carbonyl at chain end.
- International chemical naming system.
- Hydrocarbon with a double bond.
- Electrostatic attraction between charged ions.
- Carbonyl group inside a carbon chain.

Down

- Saturated ring hydrocarbon.
- Positive nucleus particle.
- Simplest single‑bonded alkane (CH₄).
- Alkane missing a hydrogen, acts as a substituent.
- Force holding atoms together.
- Neutral nucleus particle.
- Electron shell distance from nucleus.
- -COOR group, often fragrant.
- Atom/group replacing hydrogen in a chain.
- Carbon’s ability to form long chains.
- Six‑carbon aromatic ring.
- Alkane minus one hydrogen.
- Compound with –COOH group.
- Four‑carbon alkane.
- Region where electrons reside.
- Saturated hydrocarbon with single bonds.
- Negative subatomic particle.
- Ring structure of atoms.

35 Clues: - Four‑carbon alkane. • - Shared‑electron bond. • - Carbonyl at chain end. • - Ring structure of atoms. • - Neutral nucleus particle. • - Six‑carbon aromatic ring. • - Positive nucleus particle. • - Study of carbon compounds. • - Alkane minus one hydrogen. • - Compound with –COOH group. • - Saturated ring hydrocarbon. • - Compound with an –OH group. • - -COOR group, often fragrant. • ...

Advance Chemistry 2026-02-25

Across

an organic compound with a –COOH group.
an electron in the outermost shell.
a ring-shaped saturated hydrocarbon.
the international system for naming chemical compounds.
hydrocarbons containing at least one triple bond.
relating to carbon-based compounds.
a non-aromatic cyclic compound.
a neutral subatomic particle in the nucleus.
a bond formed by sharing electrons.
a four-carbon alkane.
an atom or group attached to a main chain.
saturated hydrocarbons with only single bonds.
a positively charged subatomic particle.
a number describing an electron’s energy and position.
hydrocarbons containing at least one double bond.
a compound that contains carbon bonded to hydrogen.
a compound where oxygen is bonded to two carbons.
describing unequal sharing of electrons in a bond.
a group formed from an alkane minus one hydrogen.

Down

the ability of carbon to form chains or rings.
carbon atoms forming a closed ring.
a six-carbon aromatic ring compound.
the simplest hydrocarbon with formula CH₄.
organic compounds with a –CHO functional group.
a bond formed by transfer of electrons.
a compound made only of carbon and hydrogen.
the force that holds atoms together.
organic compounds with a carbonyl (C=O) within the chain.
an open-chain organic compound.
an organic compound containing the –COO– group.
the rule that atoms tend to have eight valence electrons.
an organic compound with a hydroxyl (–OH) group.
a region around the nucleus where electrons are found.
a formula showing the number of atoms in a molecule.
a negatively charged subatomic particle.

35 Clues: a four-carbon alkane. • a non-aromatic cyclic compound. • an open-chain organic compound. • carbon atoms forming a closed ring. • an electron in the outermost shell. • relating to carbon-based compounds. • a bond formed by sharing electrons. • a six-carbon aromatic ring compound. • a ring-shaped saturated hydrocarbon. • the force that holds atoms together. • ...

Aquatic Chemistry 2026-03-13

Across

concentration of hydrogen ions in an aqueous solution
negatively charged ion made of one carbon and three oxygen atoms; important in buffering water
involves the transfer of electrons, releases energy, and can lead to oxygen depletion in lakes and wetlands
the name of the Adirondack Lake we will compare our pH and alkalinity water values with today
determining concentration by slowly adding a solution until a reaction endpoint is reached
lowest energy yield on a REDOX ladder producing “biogas”
the strong acid you will titrate with today
a sudden drop in a lake’s pH, often occurring during snow melt season, when accumulated acidic compounds from snow are rapidly released
rain precipitation usually made by sulfur and nitrogen pollution in the atmosphere
a basic substance has a high concentration of this
the ability of water to neutralize or buffer acid
loss of electrons; often oxygen-rich

Down

carbon system (multiple carbon forms) that buffers pH in water
the graduated cylindrical glassware that will be used to dispense the acid into water for the lab
in lab, you must add an acid until the pH is below _______ to create your titration curve
N2 -> NH4+ (nitrogen fixation) is an example of a ___________ redox reaction
a change in pH can alter the solubility of __________ in soils and water
“always add _______ to water, never the reverse” (lab safety rule)
this legislation significantly helped improve air quality and reduce acid rainfall in the northeast USA
microscopic living organisms that drive nutrient cycling
the ion product constant of water

21 Clues: the ion product constant of water • loss of electrons; often oxygen-rich • the strong acid you will titrate with today • the ability of water to neutralize or buffer acid • a basic substance has a high concentration of this • concentration of hydrogen ions in an aqueous solution • lowest energy yield on a REDOX ladder producing “biogas” • ...

Chemistry Terms 2026-02-05

Across

how substances react to form new substances
a substance made with mixed elements
compactness
something that changes within the chemicals
number before something...
"do you see what i'm seeing!?"
Are the physical properties different? yes.
could be short for Magnolia
how many atoms of this element?
a salad
it's in your blood
same atom of the same element
things cannot be created or destroyed
"wait, what color is that?"
"how many are there?!!!???" "36. counted them meself."

Down

DO NOT pass it
a vinegar salad dressing
anything that has mass
a fixed volume but not a fixed shape
amount of matter
cannot be broken down :(
to make sense of a line
absorbs heat
releases heat
given from Mr. golden sun
sin citys favorite metal
matter without changing its composition
does not change
Read the thermometer.
combination of pure substances
this might be a mongoose....

31 Clues: a salad • compactness • absorbs heat • releases heat • DO NOT pass it • does not change • amount of matter • it's in your blood • Read the thermometer. • anything that has mass • to make sense of a line • a vinegar salad dressing • cannot be broken down :( • sin citys favorite metal • given from Mr. golden sun • number before something... • could be short for Magnolia • "wait, what color is that?" • ...

Chemistry Puzzle 2026-02-05

Across

something the sun produces
symbol of Maganese
what state of matter are rocks in
releases heat
symbol of tin
what state of matter is water
Symbol of Iron
form of matter that is not a mixture
Holds heat within
what is U
A type of mixture that does not combine

Down

What someone does when looking at something
What is Au
mixtures like 2% milk
contributes to how heavy something is
measurement of heat
something that never changes no matter the location
used in most graphs
What is F
what is vapor in
a form of pure substances
made up of multiple molecules

22 Clues: What is F • what is U • What is Au • releases heat • symbol of tin • Symbol of Iron • what is vapor in • Holds heat within • symbol of Maganese • measurement of heat • used in most graphs • mixtures like 2% milk • a form of pure substances • something the sun produces • what state of matter is water • made up of multiple molecules • what state of matter are rocks in • ...

Chemistry Vocabulary 2026-01-21

Across

- the amount of matter in an object
- the ability of a material to be stretched into a wire.
- the form matter is in
- the way a substance reflects or emits light
change - a change that affects one or more physical properties of a substance.
- amount of space that an object takes up
displacement - how to measure the volume of an irregular solid
- the amount of matter in a given space
- the study of structure, function, and properties of matter and the changes it undergoes.
- how thick or resistant to flow a liquid is

Down

- the ability of a substance to dissolve in another substance.
- the ability of a material to be hammered or rolled into thin sheets
- the ability of a material to be attracted to a magnet
- the feel, appearance, or consistency of a substance
- a gentle sheen or soft glow/shine of a substance
- the ability of a substance to burn
- the distinct smell of a substance
change - the process when one or more substances change into entirely new substances with different properties
- anything that has mass and a volume
- the sensation of flavor perceived in your mouth

20 Clues: - the form matter is in • - the amount of matter in an object • - the distinct smell of a substance • - the ability of a substance to burn • - anything that has mass and a volume • - the amount of matter in a given space • - amount of space that an object takes up • - how thick or resistant to flow a liquid is • - the way a substance reflects or emits light • ...

Bonus Chemistry 2024-04-29

Across

positively charged particle
measurement of a solution in moles
two are more elements combined
first element on the periodic table
when an element loses electrons
how many grams equal to atomic weight of one molecule
used to limit the amount of number in chemical equations
is a belief that everything thrives from natural selection
the smallest particle of an element
an uncharged particle
what u measure water at in a tube(Curved part)
substance that dissolves in a solution

Down

the elements symbol is K
a specific model used to represent hydrogen atoms
positively charged ion
Is the last name of a famous scientist who created 3 laws
the weight of an atom
negatively charged particle
the space occupied in 3 dimensions
is a negatively charged ion an atom with extra electron

20 Clues: the weight of an atom • an uncharged particle • positively charged ion • the elements symbol is K • positively charged particle • negatively charged particle • two are more elements combined • when an element loses electrons • measurement of a solution in moles • the space occupied in 3 dimensions • first element on the periodic table • the smallest particle of an element • ...

Chemistry Definitions 2024-05-09

Across

Forces that hold molecules of a covalent compound
A neutralization is a type of...
The measure of how close measurements are to each other
A salt is a...
Acid that donates one proton per molecule
When heat is added to an endothermic reaction energy is...
discovered the nuclues of an atom
Measure of how strongly atoms attract
A compound that can act as either an acid or a base
According to Gay-Lussac's law as temperature increases ____ increases
A mixture is poured through a filter

Down

According to Charles's law as temperature increases ____ increases
The measure of how close a measurement is to the correct value
Energy required to remove electrons from atoms
Substances that are volatile vaporize easily
The overall energy change that occurs during the formation of solution
When heat is added to an exothermic reaction energy is...
Acid that donates more than one proton per molecule
Diffusion through a tinyVolatilityolume The amount of space the gas takes up
Random movement of gas molecules from an area of high to low concentration

20 Clues: A salt is a... • A neutralization is a type of... • discovered the nuclues of an atom • A mixture is poured through a filter • Measure of how strongly atoms attract • Acid that donates one proton per molecule • Substances that are volatile vaporize easily • Energy required to remove electrons from atoms • Forces that hold molecules of a covalent compound • ...

Chemistry Bonus 2024-05-01

Across

elements with properties of metals and nonmetals
bond that transfers electrons between atoms
the change in heat of the products from the reactants
horizontal rows on the periodic table
the study of how heat is converted to and from other forms of energy
the total amount of energy; movement
philosopher who said that matter could broken into smaller parts
transition of substance directly from solid to gas
what matter is composed of
transition of substance directly from gas to solid
how close a series of measurements are to each other
an acid that donates more than one proton per molecule
bond that shares electrons by atoms
the number of figures that are known with some degree of reliability

Down

how close a measured value is to an accepted value
last name of man who created the first periodic table
a mixture that is not uniform
how strongly an atom attracts electrons
a mixture containing particles that settle out
an acid that donates on proton per molecule
vertical rows on the periodic table

21 Clues: what matter is composed of • a mixture that is not uniform • vertical rows on the periodic table • bond that shares electrons by atoms • the total amount of energy; movement • horizontal rows on the periodic table • how strongly an atom attracts electrons • bond that transfers electrons between atoms • an acid that donates on proton per molecule • ...

Chemistry vocabulary 2024-05-12

Across

an organism that makes its own food
an undeerwater vehicle built of strong materials to resist pressure at depth
the area drained by a river and its tributaries
the movement of deep, cold, and nutrient rich water to the surface
two or more atoms held together by bonds
the tendency of water molecules to stick to eachother
the amount of space something occupies
tiny algae and animals that float in water and are carried by waves and currents
measure of the amount of matter in a substance
medicine that kills or slows the growth of bacteria
prepared or created artificially man-made not found in nature

Down

underground bed or layer yielding ground water for wells and springs etc
point the temperature below which a solid turns into a liquid
term that describes an organism that lives on land
the amount of matter in a given space, mass per unit volume
the ability of a substance to be hammered or beaten into thin sheets
attraction between opposite poles
horizontal row on the periodic table
nitrogen compounds used for growth by plants and algae
a measure of how acidic or basic a solution is

20 Clues: attraction between opposite poles • an organism that makes its own food • horizontal row on the periodic table • the amount of space something occupies • two or more atoms held together by bonds • measure of the amount of matter in a substance • a measure of how acidic or basic a solution is • the area drained by a river and its tributaries • ...

Organic Chemistry 2024-05-13

Across

The larger and heavier the alkane, the lower the f_______.
when unsaturated vegetable oils undergo addition of hydrogen, they become _________.
Alkanes undergo __________ reaction, where a hydrogen atom is replaced by a chlorine or bromine atom.
Compounds with the same ____ group share similar chemical properties.
To convert butene to 1,2-dibromobutane, butene has to undergo an addition reaction with __________.
Alkanes are generally _________ because every C atom is bonded to a maximum of four atoms.
An organic compound with 2 carbon atoms and 6 hydrogen atoms is known as ____________.
to convert an alkene to an alcohol, the alkene undergoes an addition reaction with _____.
CH3C(CH3)2CH3 is a branched _________ of pentane.
Alkenes go through ________ reactions because the carbon atoms in C=C bonds can take in additional atoms.
The compound formed by replacing two hydrogen atoms with bromine atoms in propane, is called _________.
Isomers have the same molecular formula but different ______ of atoms.
We prefer to use bromine in ________ state for substitution/addition of bromine, because it's safer to handle and results in more stable bromide ions being used.
Cracking breaks down a large alkane, into a mixture of smaller alkenes, and a gas called ___________.
Hydrogenation (addition of hydrogen) for alkenes required the conditions of high temperature, high pressure and a nickel ________.
A physical property that describes how easily the compound flows.

Down

One condition for alkanes to undergo substitution is the presence of ___ ______.
when unsaturated oils become less saturated (fewer C=C bonds), their melting point increases and they are more likely to exist in ______ state at room temperature.
Insufficient oxygen used in combustion produces soot (C), ___________ and water.
A homologous series of compounds with twice the number of hydrogen atoms as carbon atoms.
Substitution reactions often produce a ___________ of substitution products, depending on the conditions of the set-up.
By adding this substance, I can differentiate between saturated and unsaturated hydrocarbons.
An alkane with 4 carbons atoms is called a _______.
Unbranched alkanes have higher melting, boiling points because the molecules can ______ on each other more easily.
An alkane with nine carbon atoms, will have ____ hydrogen atoms.
to convert an alkene to an alkane, the alkene undergoes an addition reaction with _____.
A compound with 3 carbon atoms and 6 hydrogen atoms.
The presence of C=C bonds in a compound makes it an __________ compound, because every C atom can still take in additional atoms.
The process of burning a substance in oxygen.
A _____ series is a group of compounds with the same general formula.
An organic compound with one carbon atom, 4 hydrogen atoms is called ________.
Alkanes are known as _____ hydrocarbons.
A process required to match the demand for fractions containing smaller molecules from the refinery process.
To ensure a methane molecules has all its hydrogen atoms replaced by chlorine, ________ chlorine is required.
Polyunsaturated, when applied to food products, refers to a type of _______ that contains more than one unsaturated carbon bond in its chemical structure.

35 Clues: Alkanes are known as _____ hydrocarbons. • The process of burning a substance in oxygen. • CH3C(CH3)2CH3 is a branched _________ of pentane. • An alkane with 4 carbons atoms is called a _______. • A compound with 3 carbon atoms and 6 hydrogen atoms. • The larger and heavier the alkane, the lower the f_______. • ...

chemistry (ais) 2024-05-13

Across

table salt
solid that is dissolved in a solution
have only 1 valence electron
made up of long chains of carbon
has more neutrons than protons
takes up most of the space of an atom
different elements bound together
combination of elements and compounds
when the solvent is water
liquid that the solute dissolves into
when atoms join together to form a molecule

Down

horizontal groupings in a periodic table
one carbon and 4 hydrogen atoms
strong acid in the stomach
bonding by sharing an electron
when oppositely charged ions bond
mixture in which a solid does not dissolve
the lightest element
present in all living things
a liquid mixture
vertical groupings in periodic tables
contains only one type of atom

22 Clues: table salt • a liquid mixture • the lightest element • when the solvent is water • strong acid in the stomach • have only 1 valence electron • present in all living things • bonding by sharing an electron • has more neutrons than protons • contains only one type of atom • one carbon and 4 hydrogen atoms • made up of long chains of carbon • when oppositely charged ions bond • ...

chemistry vocabulary 2024-05-13

Across

A device that determines the distance of an object under water
the area where a freshwater stream or river merges with the ocean.
The tendency of water
at depth
free-swimming animals that can move throughout water
vents spots on the ocean floor where hot gases and minerals escape from earth
Basin the area drained by a river
an underwater vehicle built of strong materials to resist

Down

the movement of deep, cold, and nutrient-rich water
underground bed or layer yielding ground water
Heat The amount of energy required to raise the temperature
Ocean Zone the area of the ocean beyond the edge
small river or stream that flows into a large river or stream
the amount of matter in a given space
water that fills the cracks and spaces in rock layers
the tendency of water to stick to other substances
Tension the tightness across the surface of water
Tiny algae and animals that float in water
Solvent the quality of water that makes it able to dissolves
organisms that live on the bottom of the ocean
the area of land that is drained by a water system

21 Clues: at depth • The tendency of water • Basin the area drained by a river • the amount of matter in a given space • Tiny algae and animals that float in water • underground bed or layer yielding ground water • organisms that live on the bottom of the ocean • Ocean Zone the area of the ocean beyond the edge • Tension the tightness across the surface of water • ...

Chemistry Bonus 2024-05-08

Across

state of matter characterized by having neither a defined shape nor defined volume.
describes a system containing water.
what is put into a chemical reaction
gas in which molecules have negligible size and kinetic energy dependent only on temperature.
representation of a chemical reaction using symbols
a solute passing into solution, usually a solid going to the liquid phase.
deoxyribonucleic acd, an organic molecule that codes for proteins.
result of chemical reaction
the variable that is controlled or changed in an experiment to test its effect on the dependent variable.
the closeness of a measurement to a true or accepted value.
transformation from a gas directly to a solid
the adhesion of a chemical species onto a surface

Down

an ion with a negative electrical charge.
any matter or substance that has mass.
transformation from a solid directly to a gas
to release heat
the lowest possible state at which matter can exist, 0 K or -273.15°C.
important numbers in a number
the absorption of heat
a technique where a solution of known concentration is used to determine the concentration of an unknown solution
the defining unit of an element, which cannot be subdivided using chemical means.
mass per unit volume

22 Clues: to release heat • mass per unit volume • the absorption of heat • result of chemical reaction • important numbers in a number • describes a system containing water. • what is put into a chemical reaction • any matter or substance that has mass. • an ion with a negative electrical charge. • transformation from a solid directly to a gas • ...

Chemistry Review 2024-05-08

Across

A substance made of one element
The measure of how easily something is shaped
A way to separate mixtures by their density
A substance's ability to be dissolved
A change that creates a new substance
A different name for a homogeneous mixture
The amount of matter in a object
Has properties of both metals and non-metals
Located in the middle of the periodic table
The most reactive substances on the periodic table

Down

A positively charged particle that makes up atoms
A physically bound combination of many materials
Least reactive substances on the periodic table
A solid formed from a chemical reaction
The second most reactive metals
Anything lower than 7 on the acid scale
The flammability of a material
A way to separate mixtures through boiling
The space something takes up
The smallest unit of matter

20 Clues: The smallest unit of matter • The space something takes up • The flammability of a material • A substance made of one element • The second most reactive metals • The amount of matter in a object • A substance's ability to be dissolved • A change that creates a new substance • A solid formed from a chemical reaction • Anything lower than 7 on the acid scale • ...

CHEMISTRY CROSSWORD 2024-05-03

Across

a substance with a pH greater than 7
the relationship between products and reactants in a chemical reaction to find quantitative data
chemical reactions or physical change of state involving heat
a unit of measure of large quantities of small atoms and molecules etc.
substituting one element with another element
when two parts of an ionic compound are exchanged to make two more new ones
chemical compounds changing and breaking down
a substance with a pH less than 7

Down

expressing the required degree of accuracy with each digit of a number, starting with the first non-zero number
describing properties of gases, like Charles' and Boyles'
absorbtion of heat
two or more substances in a homogeneous mixture
release of heat
relationship between heat and other forms of energy
rearranging ionic or molecular structures of a substance
when functional groups or atoms attract electrons to themselves
a chemical reaction that uses heat, accompanied by oxygen
non-chemically linked compounds of two or more chemical compontents
chemical compounds producing simpler materials
system of numbers, amounts, or elements in mathematics

20 Clues: release of heat • absorbtion of heat • a substance with a pH less than 7 • a substance with a pH greater than 7 • substituting one element with another element • chemical compounds changing and breaking down • chemical compounds producing simpler materials • two or more substances in a homogeneous mixture • relationship between heat and other forms of energy • ...

Chemistry Bonus 2024-05-01

Across

the act of removing a solid using a filter
positive ion is a...
blood is considered a...
when atoms share electrons
when the energy state of an atom is low
cation and anion energy released
same atomic number, different mass number
results in a cation and anion

Down

discovered the electron
last column of the periodic table
paint is considered a...
to describe a shiny object
also known as a man-made element
elements that are good conductors
the amount of space an object consumes
the sugar in water is a...
elements that gain electrons to become an anion
James Chadwick discovered
negation ion is a...
An Alakli metal is a...

20 Clues: positive ion is a... • negation ion is a... • discovered the electron • An Alakli metal is a... • paint is considered a... • blood is considered a... • James Chadwick discovered • to describe a shiny object • the sugar in water is a... • when atoms share electrons • results in a cation and anion • also known as a man-made element • cation and anion energy released • ...

AP Chemistry 2024-12-12

Across

The balancing of moles in a reaction to follow conservation laws
Avogadro's number - a constant used between elements based on the weight of carbon-12
Important Chinese military technology that strengthened state power
The artificial number given to track electron gain/loss in a reaction
French philosopher that influenced the Haitian and French Revolutions
Prominent European maritime free city with in northern Italy
new idea of an imaginary community that shares a common culture and language
The reorganization of electron orbitals in order to form bonds
This is the weak outermost shell of an atom responsible for bonding

Down

primarily European movement promoting equality, ethics, and logic
Form of tributary piety in East Asia
Name of reformation movement that split Christianity
Name of wealthy mining center in modern day Bolivia
A measurement system for concentration, moles per liter
Acronym for the 3D shape that compound takes
Last name of the guy who made the bond/lone pair diagram
The way of tracking the many structures that an element/compound can appear in at the same time
Powerful Muslim empire in Turkey
A homogenous mixture of atoms
Important trade commodity primarily made in China

20 Clues: A homogenous mixture of atoms • Powerful Muslim empire in Turkey • Form of tributary piety in East Asia • Acronym for the 3D shape that compound takes • Important trade commodity primarily made in China • Name of wealthy mining center in modern day Bolivia • Name of reformation movement that split Christianity • A measurement system for concentration, moles per liter • ...

Chemistry Vocabulary 2025-04-25

Across

A simple part in matter
Together,in group
Atoms that are together
Makes up matter
Form of energy that moves around
Measurement of hot and cold
Lot of energy breaking bonds
Stuff, takes up space
Measurement of what's inside something
Result of reaction
Particle in matter

Down

Matter changing
Creates new materials
Characteristics of a substance
Something that can be measured
A link with particles
Blend of substances
The amount in stuff
Reaction to chemical
Heat being released
Combined elements
Response from chemicals

22 Clues: Matter changing • Makes up matter • Together,in group • Combined elements • Result of reaction • Particle in matter • Blend of substances • The amount in stuff • Heat being released • Reaction to chemical • Creates new materials • A link with particles • Stuff, takes up space • A simple part in matter • Atoms that are together • Response from chemicals • Measurement of hot and cold • ...

Chemistry Crossword 2025-04-07

Across

The loss of electrons in a chemical reaction.
State of matter with fixed shape and volume.
State of matter with no fixed shape or volume.
A reaction where one element replaces another.
Group 18 on the periodic table.
An element with properties of both metals and nonmetals.
A homogeneous mixture of two or more substances.
A substance that donates hydrogen ions.
Atoms of the same element with different numbers of neutrons.
Eight valence electrons — a stable arrangement.
Group 1 on the periodic table.
The amount of heat needed to raise one gram by 1°C.
Matter is not created or destroyed.
A reaction that breaks compounds apart.
Separates mixtures using boiling points.
Stored energy.
A solid that forms from a solution during a chemical reaction.
Group 17 on the periodic table.
A reaction that releases heat.
A reaction that absorbs heat.
A reaction between an acid and a base.
A measure of the amount of matter.
A measure of an atom's ability to attract electrons.
A negatively charged ion.
Positively charged particle in the nucleus.
A bond formed between oppositely charged ions.
A pure substance made of only one kind of atom.
The kind of table used to organize elements.
Energy of motion.
Discovered the nucleus with the gold foil experiment.
Type of change that does not alter chemical identity.
A measure of how much space an object occupies.
An atom or molecule with a charge; more or less electrons than protons.
A positively charged ion.
Elements that are shiny, malleable, and good conductors.
The substance being dissolved in a solution.
A bond formed when atoms share electrons.
Elements that are dull, brittle, and poor conductors.

Down

Layers of electrons around the nucleus.
Gas turning into liquid.
A substance that speeds up a chemical reaction.
Group 2 on the periodic table.
A solution with a pH of 7.
A reaction involving exchange of ions.
A type of metal found in the center of the periodic table.
Mass divided by volume.
A substance present before a chemical reaction.
A reaction that combines substances.
Number that tells how many atoms in a compound.
A reaction with oxygen that produces heat and light.
The gain of electrons in a chemical reaction.
Solid directly changing to gas.
A representation of a chemical reaction with arrows and + signs.
A substance that accepts hydrogen ions.
The scientist who proposed electrons orbit the nucleus.
A mixture of two or more metals.
A device to measure heat transfer.
Change from liquid to gas throughout the liquid.
The SI unit for the amount of substance.
Tool used to measure temperature.
Gas directly changing to solid.
The substance doing the dissolving in a solution.
A connection formed between atoms.
State of matter with fixed volume but no fixed shape.
Type of electrons involved in bonding.
A horizontal row on the periodic table.
A vertical column on the periodic table.
Number in front of compounds in a chemical equation.
The ability to conduct electricity.
A measure of average kinetic energy.
Negatively charged particle in an atom.
A method to find unknown concentration.
The smallest unit of an element.
A combination of substances not chemically bonded.
Change from liquid to gas at the surface.
A diagram that shows an atom's valence electrons.
The amount of solute that dissolves in solvent.
Substance that changes color in acid or base.
The ability to do work or cause change.
Type of change where a new substance is formed.
Neutral particle in an atom's nucleus.
The dense center of an atom.
A substance formed during a chemical reaction.
Number of protons in an atom.

84 Clues: Stored energy. • Energy of motion. • Mass divided by volume. • Gas turning into liquid. • A negatively charged ion. • A positively charged ion. • A solution with a pH of 7. • The dense center of an atom. • A reaction that absorbs heat. • Number of protons in an atom. • Group 2 on the periodic table. • Group 1 on the periodic table. • A reaction that releases heat. • ...

Chemistry Vocab 2025-04-28

Across

Involves the release of energy in the form of heat or light
The basic building block of chemistry
change A change in which the form of matter is alterred
The force that holds atoms together
Made up of one type of atom
A substance present in a chemical reaction
property A property that describes how a substance changes
Amount of energy that is transferred from one system to its surroundings
The capacity to do work
Formed by absorbing heat
Change Combines substances into new materials
A chemical substance made up of two or more elements
The measure of the amount of matter in an object
Science that deals with composition structure and properties of substances

Down

A substance that speeds up a chemical reaction
Substances formed as the result of a chemical reaction
Is a intermolecular for other molecules of the same kind
The amount of space occupied by matter
A group of two or more atoms
A material substance
The process by which chemicals interact to form new chemicals
Property The characteristic of matter that can be observed and measured
The measure of hotness or coldness of an object
A physical blend of two or more substances

24 Clues: A material substance • The capacity to do work • Formed by absorbing heat • Made up of one type of atom • A group of two or more atoms • The force that holds atoms together • The basic building block of chemistry • The amount of space occupied by matter • A substance present in a chemical reaction • A physical blend of two or more substances • ...

Chemistry G123 2024-12-20

Across

mixture containing small particles of an insoluble solid
characteristic of metals when it can be drawn into rods and sheets
the smallest particle of an element that can take part in a chemical reaction
Electrons that are not confined to any place
a process occurring at the surface of a liquid, involving the change of state from a liquid into a vapour at a temperature below the boiling point
a substance that neutralises an acid, producing a salt and water as the only products.
the temperature at which a liquid turns into a solid
Group 7 of the periodic table
Type of bond where the electron gets transferred
a measure of how much of a solute dissolves in a solvent
power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.
number the total number of of protons and neutrons in the nucleus of an atom
the branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form new substances.
accompanied by or requiring the absorption of heat.
when mass is divided by formula mass
a substance which changes colour when added to acidic or alkaline solutions
....'s constant
the process of boiling a liquid and then condensing the vapour produced back into a liquid

Down

the electrode in any type of cell at which reduction (the gain of electrons) takes place; in electrolysis it is the negative electrode
the process when different fluids mix as a result of the random motions of particles
Group 1 of the periodic table
characteristic of metals when it can be hammered into sheets
charged particles made from an atom, or groups of atoms
a substance that cant be further divided into simpler substances by chemicals
the temperature at which a liquid boils, when the pressure of the gas created above the liquid equals atmospheric pressure
shells the outside part of an atom around the atomic nucleus
the central region of an atom that is made up of the protons and neutrons of the atom
Type of bond that has a shared pair of electrons
a substance formed by the chemical combination of two or more elements
example of a catalyst
A substance that does not conduct electricity
if two liquids form a completely uniform mixture when added together
number the number of the vertical column that an element is in on the Periodic table
atoms of the same element that have the same proton number but a different nucleon number
two substances mixed together but not chemically combined
accompanied by the release of heat.
the change of a vapour or a gas into a liquid; during this process heat is given out to the surroundings
a state in which the rate of the forward reaction equals the rate of the backward reaction.
passing an electric current through ionic substances
The mass, in grams, of 1 mole of a substance
speeds up a reaction
Group8 of the periodic table

42 Clues: ....'s constant • speeds up a reaction • example of a catalyst • Group8 of the periodic table • Group 1 of the periodic table • Group 7 of the periodic table • accompanied by the release of heat. • when mass is divided by formula mass • Electrons that are not confined to any place • The mass, in grams, of 1 mole of a substance • A substance that does not conduct electricity • ...

Chemistry Terms 2025-03-25

Across

negative ion.
shiny, conductive, malleable element.
Matter's building block.
Negatively charged atoms.
divisions on the periodic table (s,p,d,f).
unbonded substances.
positive ion.
center of an atom.
same element, different neutron numbers.

Down

Positively charged atoms.
electrons on the outmost layer.
Atoms with a positive or negative charge.
Unreactive elements with full valence shells.
amount of solute in solution.
mix of metal and nonmetal traits.
dull, brittle, weak conductor.
bonded by transferring electrons.
dissolved in water.
area with high electron charge.
bonded by sharing electrons.

20 Clues: negative ion. • positive ion. • center of an atom. • dissolved in water. • unbonded substances. • Matter's building block. • Positively charged atoms. • Negatively charged atoms. • bonded by sharing electrons. • amount of solute in solution. • dull, brittle, weak conductor. • electrons on the outmost layer. • area with high electron charge. • mix of metal and nonmetal traits. • ...

Chemistry Vocabulary 2025-03-30

Across

One or more of the same atoms bonded together. 118 of these on the periodic table.
Gas to solid
Positive charge, found in the nucleus. Determines what the element is.
Change when matter changes it’s appearance but a new substance is not formed.
Particles are close together, strongly attracted, locked in a pattern, vibrate in place, fixed shape and volume.
Gas to liquid
Theory that helps to explain the physical characteristics of matter. All matter is made up of tiny particles that are constantly moving
Smallest particles that cannot be divided further. Building blocks of matter
Central region of the atom.
Liquid to gas
Solid to liquid

Down

Mixture with two or more types of particles that you can see or feel.
Neutral charge, found in the nucleus.
One element or one compound
Mixture with two or more types of particles but look like only one.
Change when the atoms in the matter connect to form a new substance with different characteristics. Irreversible.
Two or more different elements combined chemically.
Particles are slightly apart, some attraction, able to slide past, spaces between are larger, indefinite shape, fixed volume.
Particles are far apart, can move in any direction, weak attraction, no fixed shape, no fixed volume, expand to fill the container, move rapidly in all directions.
Solid to gas
Liquid to solid
Group of atoms bonded together. Can be the same or different atoms.
Negative charge, found orbiting the nucleus. Determine the chemical properties of elements and how they react.
Anything that has mass and takes up space
Two or more elements or compounds that are physically combined

25 Clues: Gas to solid • Solid to gas • Gas to liquid • Liquid to gas • Liquid to solid • Solid to liquid • One element or one compound • Central region of the atom. • Neutral charge, found in the nucleus. • Anything that has mass and takes up space • Two or more different elements combined chemically. • Two or more elements or compounds that are physically combined • ...

Chemistry Crossword 2025-04-01

Across

This has 4 protons.
This has 3 protons.
They have properties between those of metals and non metals.
Bases have a pH level, greater and including ____.
What you call an atom that has a positive charge.
A substance that can't be broken down
Particles with no charge.
Negative charged particles.
Acids have a pH level, lower and including ____.
This has 1 proton.

Down

This is a table that has all the elements in it.
When an atom gains an electron, it has a ____ charge.
Positive charged particles.
What you call an atom that has a negative charge.
This has 2 protons.
Central region of the atom.
What can the amount of protons tell you.
Is chemistry a good subject
This has 5 protons.
When an atom loses an electron, it has a ____ charge.

20 Clues: This has 1 proton. • This has 4 protons. • This has 3 protons. • This has 2 protons. • This has 5 protons. • Particles with no charge. • Positive charged particles. • Central region of the atom. • Is chemistry a good subject • Negative charged particles. • A substance that can't be broken down • What can the amount of protons tell you. • ...

AP Chemistry 2025-04-01

Across

A gas law expressed as PV=nRT, relating pressure, volume, temperature, and moles
A measure of concentration, defined as moles of solute per liter of solution
A substance that speeds up a reaction without being consumed
A reaction that releases heat into the surroundings
The process of losing electrons in a chemical reaction
A type of bond formed through the transfer of electrons from one atom to another
A solution that resists changes in pH when small amounts of acid or base are added
A gas law stating that pressure and volume are inversely proportional at constant temperature
The SI unit for measuring the amount of substance, equal to 6.022 x 10^23 particles
A reaction involving the transfer of electrons between species

Down

The number of representative particles in one mole of a substance (6.022 x 10^23)
The minimum energy required for a chemical reaction to occur
The principle stating that a system at equilibrium will adjust to counteract disturbances
The ability of an atom to attract electrons in a chemical bond
The process of gaining electrons in a chemical reaction
The calculation of reactants and products in chemical reactions
A measure of the hydrogen ion concentration in a solution, indicating its acidity or basicity
A gas law stating that volume and temperature are directly proportional at constant pressure
A type of bond where electrons are shared between atoms
A reaction that absorbs heat from the surroundings

20 Clues: A reaction that absorbs heat from the surroundings • A reaction that releases heat into the surroundings • The process of losing electrons in a chemical reaction • The process of gaining electrons in a chemical reaction • A type of bond where electrons are shared between atoms • The minimum energy required for a chemical reaction to occur • ...

Chemistry Crossword 2025-04-15

Across

Smallest unit of an element
Change that forms new substances
Table that organizes elements
Neutrally charged particle in an atom
A substance made of only one type of atom
Change where no new substance is formed
Type of bond where electrons are shared
Number of protons in an atom
State of matter with fixed shape and volume
Positively charged particle in an atom

Down

State of matter that fills any container
Basic unit of a compound
State of matter with definite volume but no shape
pH above 7
Negatively charged particle in an atom
The center of an atom
Process where substances combine chemically
Symbol for water
Substance that speeds up a reaction
pH below 7

20 Clues: pH above 7 • pH below 7 • Symbol for water • The center of an atom • Basic unit of a compound • Smallest unit of an element • Number of protons in an atom • Table that organizes elements • Change that forms new substances • Substance that speeds up a reaction • Neutrally charged particle in an atom • Negatively charged particle in an atom • Positively charged particle in an atom • ...

Chemistry Crossword 2025-04-10

Across

how fast a reaction is
a regular arrangement of particles
does not react
liquid changes to solid
an ion with a negative charge
solute dissolve in it
a starting chemical for a reaction
an ion with a positive charge
a compound formed between oxygen and other element
made up of molecules
Burns easily
harmful to health
another name for a negative ion
does not react easily

Down

energy another term for heat
reacts with substances it comes into contact with
the center part of the atom, made up of the atom made up of the protons and neutrons
a gradual change
another name for a positive ion
gives out heat energy
breaks easily when struck
metal group 1 of the periodic table
not harmful to health
a poor heat or electricity conductor
reusing resources
solid changes to liquid
will dissolve in solvent
has no charge
a soluble base

29 Clues: Burns easily • has no charge • does not react • a soluble base • a gradual change • reusing resources • harmful to health • made up of molecules • gives out heat energy • not harmful to health • solute dissolve in it • does not react easily • how fast a reaction is • liquid changes to solid • solid changes to liquid • will dissolve in solvent • breaks easily when struck • ...

chemistry crossword 2025-04-14

Across

a poor conductor of heat and electricity
a substance that allows heat and electricity to pass through
separating a solid from a liquid
another name for a positive ion
way to separate a mixture using a solvent and special paper
the liquid in which the solid dissolve, to make a solution
the process in which particles mix by colliding randomly with each other
separating a liquid by boiling it then condensing it
the patterns of repeating that shows up when elements are arranged in order of proton number
the family of organic compounds with the OH functional
a special term used for the corrosion of iron
a metal oxide or hydroxide
the process in which crystals form
another name for a negative ion
a gradual change

Down

a substance in which two or more elements are chemically combined
the process of removing impurities from a chemical substance
the solid obtained when a solid is separated by filtering
the liquid obtained from filtration
a term used for synthetic polymers
firm and stable in shape
the mass of a substance per unit volume
shows the elements in order of increasing proton number
small molecules that join together to form polymer
where a liquid turns into a gas at any temperature
there is only one substance in it
large molecules built up from many smaller molecules called monomers
reacts with substance it comes into contact with
to remove a metal from its ore
the temperature in which a solid substance melts.
how readily a substance reacts

31 Clues: a gradual change • firm and stable in shape • a metal oxide or hydroxide • to remove a metal from its ore • how readily a substance reacts • another name for a positive ion • another name for a negative ion • separating a solid from a liquid • there is only one substance in it • a term used for synthetic polymers • the process in which crystals form • ...

Nuclear Chemistry 2024-10-04

Across

fission when atoms split into smaller atoms
life given amount of time for half of the sample to decay
crossroads study the effects of a nuclear blast on an armada of naval ships
positive charge(determines identity)
sickness combo of symptoms that occur following radioactive fallout
negative charge (little mass that orbits the nucleus)
decay converts a neutron to a proton
differs elements by the # of nuetrons
level nuclear waste highly radioactive and dangerous
rays High energy with no mass and no charge
bravo large amount of fallout in the form of coral dust

Down

chain reaction triggers fission in neighboring atoms
containment building was inadquete
level nuclear waste slightly radioactive
decay decreases the atomic # of atom by 2 and the atomic mass by 4
nuclear core becomes so hot it melts
any energy emitted from a source
mile island relief water valve stuck open. water escaped from the core
elements -Elements with atoms that can release their own energy.
radiation Any wavelength of frequency of energy that is able to remove electrons from other atoms
neutral (stabilizes the nucleus)
particles releases when the nucleus has too many nuetrons
particle releases when the nucleus has too few nuetrons
for peace shift from using nuclear power for destruction to seeing how to use it for peace

24 Clues: any energy emitted from a source • neutral (stabilizes the nucleus) • containment building was inadquete • nuclear core becomes so hot it melts • positive charge(determines identity) • decay converts a neutron to a proton • differs elements by the # of nuetrons • level nuclear waste slightly radioactive • fission when atoms split into smaller atoms • ...

Chemistry Crossword 2024-10-03

Across

a subatomic particle that has a charge of +1
the SI base unit for volume
the sum of the atomic number and the neutrons
the SI base unit for time
a pure substance that cannot be separated into simpler substances
Negatively charged particles (-1)
the weighted average mass of the isotopes of that element
used to express numbers as a number between 1 and 10 multiplied by 10 raised to a power
the SI base unit for mass
a form of matter that flows, has constant volume, and takes the shape of its container
how close a measurement is to the accepted value

Down

a tiny, dense region in the center of the atom
Atoms with the same number of protons but a different mass
organizes the elements into elements into a grid of horizontal rows called periods and vertical columns called groups
a subatomic particle that has the same mass of a proton, but carries no charge
how close together a set of measurements are
a form of matter that not only flows to conform to the shape of its container, but also fills the entire volume of its container
made up of two or more different elements that are combined chemically
the SI base unit for length
a property of matter that is mass per unit of volume
a form of matter that has its own definite shape and volume
the number of protons in an element
the smallest particle of an element that retains the properties of the element

23 Clues: the SI base unit for time • the SI base unit for mass • the SI base unit for volume • the SI base unit for length • Negatively charged particles (-1) • the number of protons in an element • a subatomic particle that has a charge of +1 • how close together a set of measurements are • the sum of the atomic number and the neutrons • ...

Organic Chemistry 2024-07-11

Across

Four carbon atoms make up this alcohol. What's its name?
This alcohol has three carbon atoms. Can you name it?
What's the fuel inside a lighter?
An alkane with six carbon atoms is called...?
Seven carbon atoms make up this alkane. What's its name?
Which alcohol is found in alcoholic beverages?
This eight-carbon alkane is found in gasoline. What is it?
What's the simplest hydrocarbon, often found in natural gas?
What do we call a large molecule made of repeating units?
acid What type of organic compound has a -COOH group?
This type of molecule contains a carbon-carbon double bond
What's another name for the molecule C2H4?
This three-carbon alkene is used to make plastic. What is it?
What forms when an alcohol reacts with a carboxylic acid?

Down

What do we call compounds made only of carbon and hydrogen?
This alkane has how many carbon atoms?
What's the simplest alcohol?
What organic compound has a -CHO group?
Which gas is commonly used in camping stoves?
This organic compound contains a C=O group not at the end of a chain
Can you name the organic compound with a triple bond?
The small molecules that join to form polymers are called...?
An alkene with four carbon atoms is called...?
What type of organic compound has only single bonds?
This two-carbon alkane is used in gas barbecues

25 Clues: What's the simplest alcohol? • What's the fuel inside a lighter? • This alkane has how many carbon atoms? • What organic compound has a -CHO group? • What's another name for the molecule C2H4? • An alkane with six carbon atoms is called...? • Which gas is commonly used in camping stoves? • Which alcohol is found in alcoholic beverages? • ...

Chemistry terms 2024-07-16

Across

Reaction - A process that involves rearrangement of the molecular or ionic structure of a substance.
Bond - A chemical bond that involves the sharing of electron pairs between atoms.
- Elements that are poor conductors of heat and electricity.
- A substance that reduces the hydrogen ion concentration in a solution.
- A group of atoms bonded together.
- Atoms of the same element with different numbers of neutrons.
- A substance formed from two or more elements chemically united in fixed proportions.
Bond - A chemical bond formed between two ions with opposite charges.

Down

- Elements that are good conductors of heat and electricity.
- A subatomic particle with a negative charge.
Electrons - The electrons in the outer shell of an atom that are involved in forming bonds.
- A scale used to specify the acidity or basicity of an aqueous solution.
- An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
- The basic unit of a chemical element.
- A subatomic particle with a positive charge found in the nucleus of an atom.
- Elements with properties intermediate between metals and nonmetals.
Table - A table of the chemical elements arranged in order of atomic number.
- A subatomic particle with no charge found in the nucleus of an atom.
- A substance that increases the hydrogen ion concentration in a solution.
- A substance that cannot be broken down into simpler substances.

20 Clues: - A group of atoms bonded together. • - The basic unit of a chemical element. • - A subatomic particle with a negative charge. • - Elements that are good conductors of heat and electricity. • - Elements that are poor conductors of heat and electricity. • - Atoms of the same element with different numbers of neutrons. • ...

Basic Chemistry 2024-09-11

Across

All matter is composed of? page 25
Which type of mixture has tiny particles? page 29
Substances that increase the rate of chemical reaction without themselves becoming chemically changed? page 38
When bonds are broken in larger molecules, resulting in smaller, less complex molecules is which type of chemical reaction? page 36
What energy is the results form from the movement of charged particle? page 24
What is the other name for exchange reaction? page 36
Two or more atoms held together by chemical bond is called? page 28
What energy is energy in action? page 24
Both protons and neutrons have the same? page 25
What bear a positive electrical charge? page 25
What energy travels in waves? page 24
Part of calcium phosphate salt in bones and teeth. Also present in nucleic acids and part of ATP. page 26
Which element is a component of proteins and nucleic acids (genetic material)? page 26
Salt and water is an example of which type of mixture? page 29
What kind of bonds form between water molecules? page 35
We designate each element by one or two letter chemical shorthand called? page 25
Present in bone. Also an important cofactor in a number of metabolic reactions, what am i? page 26
the more modern model of atomic structure is called? page 26
When four hydrogen atoms combine with one carbon atom to form what compound? page 28
Substances composed of two or more components physically intermixed is called? page 29
What type of mixture often appear translucent or milky? page 29
Which element has the atomic symbol Ca? page 25

Down

An atom has a central ___ containing protons and neutrons tightly bound together. page 25
Which model of the atomic structure is the simplified model? page 26
The heavier isotopes of many elements are unstable and their atomic decompose spontaneously into more stable form. Isotopes that exhibit this behavior are called? page 28
What bear a negative electrical charge? page 25
A component of proteins, particularly muscle proteins what am i ? page 26
Which element has the atomic symbol O? page 25
Which element is a component of all organic molecules and influences the pH of body fluid? page 26
when two or more different kinds of atoms bind, they form molecules of a? page 28
An element necessary for conduction of nerve impulses and muscle contraction. page 26
The word atom comes from the ____ word. page 25
When smaller participles are bonded together to form larger, more complex molecules this reaction is? page 36
Which bond is form when electrons are transferred from one atom to another? page 32
Which element has 3 protons,4 neutrons and 3 electrons? page 27
An average of the relative weight of all isotopes of an element, taking into account their relative abundance in nature is? page 28
Each element is composed of more or less identical particles or building block called? page 25
What energy is stored energy? page 24
What energy is directly involved in moving matter? page 24
What have the same number of protons but differ in the number of neutrons they contain? page 27
It is important for water balance, conduction of nerve impulses and muscle contraction page 26
Which bond is form when electrons are shared? page 32
Which energy is stored in the bonds of chemical substance? page 24
Anything that occupies space and has mass. page 24
What is define as the capacity to do work or put matter into motion? page 24
it is important to understand that reach electron shell represents a different ____. page 31
When two hydrogen atoms combine with one oxygen atom to form what compound? page 28
What element is needed to make functional thyroid hormones? page 26
Which element has the atomic symbol C? page 25
What element has 26 proton and 26 electron? page 25

50 Clues: All matter is composed of? page 25 • What energy is stored energy? page 24 • What energy travels in waves? page 24 • What energy is energy in action? page 24 • Which element has the atomic symbol O? page 25 • Which element has the atomic symbol C? page 25 • What bear a negative electrical charge? page 25 • The word atom comes from the ____ word. page 25 • ...

Basic Chemistry 2024-09-11

Across

important for all biochemical reactions in the body (pg.51)
anything that occupies space and take up mass (pg.24)
bonds This happen when electrons are completely transferred from one atom to another (pg.39)
an ion with a positive charge (pg. 29)
These acids are fundamental, they make up your genes, which provide the basic blueprint of life ( pg. 52)
When polymers must be broken down or digested to their monomers, the reverse process, is called ( pg. 42)
Acid- base balance is carefully regulated by the kidneys, lungs, and a number of chemicals called ( pg. 42)
These are simple sugars and are single- chain (pg. 42)
This type of energy is inactive or stored ( pg.25
This is a process of spontaneous atomic decay ( pg. 30)
This happen when two or more atoms combine chemically and is called ( pg.31)
An ion with a negative charge (pg. 29)
Bonds This bond forms when two non- metals share a pair of electrons. The electrons involved are in the outer shells of the atoms ( pg.33)
has no mass and does not take up space (pg.25)
reaction Bonds are both made and broken ( pg. 37 )
sites These sites fit and interact chemically with other molecules of complementary shape and charge called substrate ( pg. 51)
The negatively charge subatomic particle (pg. 26)
This occurs when smaller particles are bonded together to form larger, more complex molecules ( pg. 37)
are chainlike molecules made up of many similar or repeating units(monomers) (pg.42)
This is the smallest atom, with just one proton and one electron (pg. 28)
table This is an odd- shaped checkerboard that has the complete listing of the elements (pg. 26)
These are subatomic with a positive electrical charge ( pg 26)
It is the basic building block of chemistry. It is the smallest unit into which matter can be divided without the release of electrically charged particles ( pg 26)
This is a liquid or gas in which smaller number of other substances, called salutes, that can be dissolved or suspended (pg. 39)

Down

These are double sugars and are formed by two simple sugars that are joined by dehydration synthesis ( pg. 44)
This is a neutral subatomic particle that are uncharged(pg.26)
When they gain or lose electrons during bonding, their positive and negative charges are no longer balanced, and these charged particles are called ( pg. 32)
model This depicted the general location of electrons outside the nucleus ( pg. 28
These include sugars and starches, contain carbon, hydrogen, and oxygen (pg. 42)
compounds These compounds lack carbon and tend to be small, simple molecules (pg. 38)
This is an ionic compound containing cations other than the hydrogen ions and anions other than the hydroxide ion ( pg. 39)
This occurs when bonds are broken in larger molecules, resulting in smaller, less complex molecules ( pg. 37)
All matter is composed of a limited number of substances called? ( pg. 26)
These compounds contain carbon, and they are important compounds in the body (pg. 38 &39)
This is a given number of each element (pg. 29)
These are substances that conduct an electrical current in solution ( pg. 40
This is the fear of water ( pg. 46)
This is the most abundant inorganic compound in the body ( pg. 39
fats Fatty acid chains with only single covalent bonds between carbon atoms rereferred to as ( pg. 44)
bonds This is a chemical bond that involves the electrostatic attraction between hydrogen atom and an atom containing a lone pair electron in a substance (pg. 34)
This type of fat is common in many margarines and bake products (pg. 46)
Help to regulate growth and development ( pg. 51)
This is the most single important steroid molecule ( pg. 46)
This is a substance that increases the rate of a chemical reaction without becoming part of the product or bring changed itself (pg. 51)
This is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products.
these have a sour taste, can dissolve any metal and can burn a hole in your rug (pg. 51)
These are heavier isotopes of certain atoms are unstable and tend to release energy in order to become more stable (pg. 30)
Highly specialized proteins that recognize, bind with, and inactive bacteria, toxins, and some viruses; function in the immune response, which helps protect the body from invading foreign substances ( pg. 51)
This reaction occurs when acids and bases are mixed, they react with each other in an exchange reaction to form water and salt ( pg. 41)
energy This type of energy is referred to as the working energy, it's involved in the constant movement of the tiniest particles of matter (pg. 25)
These have a bitter taste, feel slippery, and are proton acceptor (pg. 40)

51 Clues: This is the fear of water ( pg. 46) • an ion with a positive charge (pg. 29) • An ion with a negative charge (pg. 29) • has no mass and does not take up space (pg.25) • This is a given number of each element (pg. 29) • This type of energy is inactive or stored ( pg.25 • Help to regulate growth and development ( pg. 51) • ...

chemistry crossword 2024-06-25

Across

___ of ice is 273.15k.
boiling is a __ phenomenon.
gas to solid process is __.
__ intermolecular force of attraction.
__ causes cooling.
rate of evaporation increases with an increase in __.
high intermolecular force of attraction.
considered as building blocks of matter.
evaporation causes ___.

Down

camphor is an example of.
factor affecting the state of a substance is __.
the temperature at which liquid starts boiling.
__ is stored under high pressure.
sublimation occurs when temperature __.
its meaning is hidden.
gas is __ compressible.
evaporation is a __ phenomenon.
__ don't have a fixed shape.
anything which occupies space and has mass
__ molecules have high kinetic energy.

20 Clues: __ causes cooling. • ___ of ice is 273.15k. • its meaning is hidden. • gas is __ compressible. • evaporation causes ___. • camphor is an example of. • boiling is a __ phenomenon. • gas to solid process is __. • __ don't have a fixed shape. • evaporation is a __ phenomenon. • __ is stored under high pressure. • __ intermolecular force of attraction. • ...

Basic chemistry 2024-09-09

Across

A carbohydrate composed of two monosaccharides
Shell The outermost electron shell of an atom that determines its chemical behavior
Organic molecules including fats, oils, and steroids, that are insoluble in water
A substance that releases hydrogen ions in solution
The smallest unit of matter retaining the properties of an element
Large molecules composed of amino acids
(Adenosine Triphosphate)The main energy currency of cells
A substance that accepts hydrogen ions or releases hydroxide ions in solution
A substance that is dissolved in a solvent
Reaction A reaction between an acid and a base that produces water and a salt
A substance formed by the chemical combination of two or more elements in fixed proportions
Scale Ascale that measures the acidity or basicity of a solution
Compounds Compounds that contain carbon
A type of lipid characterized by a carbon skeleton consisting of four rings
Fatty Acid Afatty acid with no double bonds between carbon atoms, fully saturated with hydrogen
Structure The sequence of amino acids in a protein
Organic compounds consisting of carbon, hydrogen, and oxygen, typically in a 1:2:1 ratio
A substance composed of identical atoms that cannot be broken down by ordinary chemical means
The building block of nucleic acids, consisting of a sugar, a phosphate group, and a nitrogenous base
An atom or group of atoms that has gained or lost one or more electrons, thus acquiring a charge
The simplest form of carbohydrate, such as glucose
Molecule A molecule with an uneven distribution of charge, leading to a dipole moment
Variants of an element that have the same number of protons but different numbers of neutrons

Down

A substance that minimizes changes in pH by accepting or donating hydrogen ions
Acid) The molecule that carries genetic information in cells
The tendency of an atom to attract electrons towards itself
Substances that conduct an electric current when dissolved in water
Synthesis A chemical reaction that builds larger molecules by removing water
Site The region on an enzyme where the substrate binds
Fatty Acid : A fatty acid with one or more double bonds between carbon atoms
Structure The overall three-dimensional shape of a protein
Acids The building blocks of proteins, containing an amino group and a carboxyl group
A substance that speeds up a chemical reaction without being consumed
The addition of a phosphate group to a molecule, often to regulate its activity
Two or more atoms bonded together
The loss of a protein's native structure, rendering it nonfunctional
Bond The attraction between oppositely charged ions
Bond A weak attraction between a hydrogen atom and another atom
chemical reaction that breaks down molecules by adding water
Helix The spiral shape of DNA
(Ribonucleic Acid) A molecule that plays a role in protein synthesis
A substance in which other substances can dissolve
Acids. DNA and RNA, molecules that store and transfer genetic information
A protein that speeds up chemical reactions in the body without being consumed
The reactant on which an enzyme acts
Compounds Compounds that do not contain carbon, such as water and salts
Structure The structure formed by the combination of multiple polypeptide chains
Structure The folding or coiling of the amino acid chain into alpha helices or beta sheets
Bond A bond formed when atoms share one or more pairs of electrons
A complex carbohydrate composed of long chains of monosaccharides

50 Clues: Helix The spiral shape of DNA • Two or more atoms bonded together • The reactant on which an enzyme acts • Large molecules composed of amino acids • Compounds Compounds that contain carbon • A substance that is dissolved in a solvent • A carbohydrate composed of two monosaccharides • Structure The sequence of amino acids in a protein • ...

chemistry puzzle 2024-09-11

Across

anything that has mass and takes up space ( ch.2, pg.24)
which energy results from the movement of charged particles.(pg.24)
the process of atomic decay is called? (pg.28)
reactions that occurs whenever chemical bonds are formed, rearranged, or broken pg.35
formed molecules that are electrically balanced pg.34
energy that is in action (pg.24-25)
The reactant taking up the transferred electrons is called the electron acceptor and is said to become? pg.36
the smallest unit of an element( ch.2, pg.25)
heterogeneous mixture of tiny particles that are dispersed in another medium(pg.29-30)
The substance present in the greatest amount is called? (pg.29-30)
this energy is directly involved in moving matter(pg.24)
subatomic particle in an atom that has a negative charge (ch.2 pg.25)
isotopes that exhibit radioactivity are called ( pg. 28)
a combination of two or more atoms held together by chemical bonds is called a ? (ch.2 pg.28)
in the reactions Smaller particles are bonded together to form larger, more complex molecules. pg.36
has a definite volume but they conform to the shape of their container(pg.24)
subatomic particle in an atom that has a neutral charge (ch.2 pg.25)
bonding that occurs between metals and non metals (pg.31-35)
elements with the outermost electron full are said to be chemically? (pg.31)
the fundamental unit used to measure the amount of substance.pg.29-30
an average of the relative weights of all the isotopes of an element, taking into account their relative abundance in nature.(pg.28)
substances composed of two or more components physically intermixed(pg.29-30)
if you increase me in a substance the kinetic energy also increases creating more collisions. pg.38
an electrically charged atom formed by the loss or gain of one or more electrons pg.32
atoms that have low electron attracting ability that they lose their valence electrons to other atoms are called (pg.34)
Reactions that release energy are called? pg.37

Down

any atom is equal to the number of protons in its nucleus (pg.27)
regions around the nucleus in which a given electron or electron pair is likely to be found pg.26
the ability to do work or put matter into motion (ch.2, pg.24)
stored energy, that has the potential, or capability, to do work but is not doing so(pg.24)
this type of energy travels in waves(pg.24)
type of bonding that involves sharing an electron (pg.31-35)
one of two or more atoms with the same atomic number but different number of neutrons (pg.27-28)
the power of an atom in a molecule to attract shared-pair electrons towards itself. (pg.34)
substances formed when two or more elements are chemically bonded together in a fixed ratio (pg.30)
Substances present in smaller amounts are called? (pg.29-30)
subatomic particle in an atom that has a positive charge ( ch.2 pg.25)
weak bonds formed between one hydrogen atom, already covalently linked to an electronegative atom, and another electronegative atom (pg.34-35)
has neither a definite shape or definite value (pg.24)
homogeneous mixtures of components that may be gases, liquids, or solids (pg.29-30)
in these reaction occurs when a molecule is broken down into smaller molecules pg.36
unique substances that cannot be broken down into simpler substances by ordinary chemical methods (pg.25 Ch.2)
substances that regulate and accelerate the rate of biochemical reactions pg.38
have definite shape or volume eg.bones(pg.24)
the sum of the masses of its protons and neutrons in the atom ( ch.2 pg.27)
Chemical reactions progress most rapidly and the chance of successful collisions is greater because of this factor. pg.38
form of energy stored in the bonds of chemical substances.(pg.24)
The reactant losing the electrons is referred to as the electron donor and is said to be? pg.36
heterogeneous mixtures with large, often visible solutes that tend to settle out(pg.29-30)
reactions that absorb energy are called? pg.37
in these reactions bonds are both made and broken pg.36
formed molecules that are unequally or not electrically balanced pg.34

52 Clues: energy that is in action (pg.24-25) • this type of energy travels in waves(pg.24) • the smallest unit of an element( ch.2, pg.25) • have definite shape or volume eg.bones(pg.24) • the process of atomic decay is called? (pg.28) • reactions that absorb energy are called? pg.37 • Reactions that release energy are called? pg.37 • ...

Basic Chemistry 2024-09-12

Across

Term used to describe neither losing or gaining electrons. Pg 42
Reacting substances in a chemical equation. Pg 35
Term used to describe a strong attraction towards electrons. Pg 34
Modified triglycerides with a Phosphorus containing group and 2 fatty acid chains. Pg 47
Formed when two monosaccharides are joined. Pg 43
Compact, water soluble, spherical Proteins which plays a role in almost all biological processes. Pg 50
Waste product of protein that is broken down in the body. Pg 40
Compounds that contain carbon, containing Covalent Bonds and are sometimes quite large. Pg 38
Two or more atoms held together by chemical bonds. Pg 28
Characterized as globular proteins that acts as a biological catalyst. Pg 51
Homogeneous mixtures of compounds that may be gas, liquid or soild and dissolve evenly. Pg 29
The substance on which an enzyme act. Pg 52
Fairly insoluble, large storage sugars made of polymers of simple linked together. Pg 43
Bears a net negative charge, gains one or more electrons and is a electron donor. Pg 32
Heterogeneous mixtures also known as emulsions,usually translucent or milky and do not settle out. Pg 30
Has a bitter taste, is slippery and is a proton acceptor. Pg 39
Bears a positive charge.Pg 25
Reactions that release energy. Pg 37
Bears a net positive net charge, loses electrons and is a electron donor. Pg 32
Sum masses of a element's proton and neutrons. Pg 27
Single ring/ chain structures that contains 3 to 7 carbons.Pg 43
Energy that can be placed in action. Eg. Throwing a ball. Pg 24

Down

Indicated by M and used to express the concentration of a solution. Pg 30
Also known as Exhange reactions.Bonds are both broken and made in these reactions. Pg 36
Term associated with the building or repairing in the body.Pg 36
Bonds found in ther formation of protein. Pg 47
Has a sour taste, can react with many metals and is a proton donor. Pg 39
Insoluble in water but readily dissolve in other solvents such as alcohol and ether. Pg 43
Substances that conduct electrical current in solution. Pg 39
An ionic compound that contains cations, other hydrogen ions and anions other than hydroxl ions. Pg 39
Breaking of bonds due to changes in ph or temperature. Pg 50
Regions of space around the nucleus of a atom.Pg 26
The capacity to do work put matter into motion. Pg
Large arrays of cations and anions held together by ionic bonds. Pg 32
Heterogeneous mixtures with large visible solutes that settle out. Pg 36
Substances composed of two or more components physically intermixed. Pg 29
Reactions that comprises of potential energy in the chemical bonds than the reactants. Pg 37
Low electron attracting ability that causes electrons to lose their valence shells to other atoms. Pg 34
Compounds that are found mainly in the body, and are acids, water, salts and bases. Pg 38
Chemical Bonds that form by the transfer of one or more electrons from one atom to another. Pg 32
Made of chain like units comprising of similar repetitive units. Pg 42
Term associated with the Decomposition or degradation in the body. Pg 36
Charged particles formed when electrons are lost.Pg 32
Isotopes whose elements are unstable and are radioactive. Pg 28
Molecules that exhibit unequal electron pair sharing. Pg 34
Term used for when two or more atoms combine and form molecules. Pg 28
Reactions which sees molecules broken down into smaller molecules or it constituent atoms. Pg 36
To contain two poles of charge. Eg Water Pg 34
Anything that occupies space and has mass. Pg 24
Bonds found between electron sharing molecules. Pg 32
Extended Strand like proteins that are integral for structure in the body. Pg 50

51 Clues: Bears a positive charge.Pg 25 • Reactions that release energy. Pg 37 • The substance on which an enzyme act. Pg 52 • To contain two poles of charge. Eg Water Pg 34 • Bonds found in ther formation of protein. Pg 47 • Anything that occupies space and has mass. Pg 24 • Reacting substances in a chemical equation. Pg 35 • Formed when two monosaccharides are joined. Pg 43 • ...

Basic Chemistry 2024-09-13

Across

a group of molecules that includes sugars and starches, represent 1–2% of cell mass page 43.
The relative concentration of hydrogen ions in various body fluids is measured in concentration units called page 40.
an atom’s outermost energy level or that portion of it containing the electrons that are chemically reactive page 31.
a combination of two or more atoms held together by chemical bonds is called a page 28
Every chemical reaction requires that a certain amount of energy, called page 52.
are extended and strandlike some exhibitonly secondary structure, but most have tertiary or even quaternary structure as well page 50
are homogeneous mixtures of components that may be gases, liquids, or solids page 29.
of any atom is equal to the number of protons in its nucleus page 27
is stored energy, that is, inactive energy that has the potential, or capability, to do work but is not presently so page 24.
is the study of the chemical composition and reactions of living matter page 38.
contains protons and neutrons tightly bound together.
is anything that occupies space and has mass.Page 24
donor The reactant losing the electrons is referred to as the page 36.
is defined as the capacity to do work, or to put matter into motion page 24
are insoluble in water but dissolve readily in other lipids and in organic solvents such as alcohol and ether page 43.
have a bitter taste, feel slippery, and are proton acceptors that is, they take up hydrogen ions (H1) in detectable amounts page 39.
is the form stored in the bonds of chemical substances page 24.
is formed when two monosaccharides are joined by dehydration synthesis page 43.
is energy that travels in waves page 24.
have a sour taste, can react with (dissolve) many metals,and “burn” a hole in your rug page 39.
are substances that increase the rate of chemical reactions without themselves becoming chemically changed or part of the product page 38.
Electrons forming the electron cloud around the nucleus of an atom occupy regions of space called page 31.
The structural units of nucleic acids page 53.
Acids that do not dissociate completely, like carbonic acid (H2CO3) and acetic acid (HAc), are weak acids page 41.
acids that dissociate completely and irreversibly in water are called page 41.
are formed when atoms share electron pairs page 57.
are modified triglycerides page 47.
are globular proteins that act as biological catalysts page 51.
also called neutral fats, are commonly known as fats when solid or oils when liquid page 45.

Down

all cells contain a class of unrelated globular proteins called page 50.
results from the movement of charged particles page 24.
are heterogeneous mixtures with large, often visible solutes that tend to settle out page 30.
acids composed of carbon, oxygen, hydrogen,nitrogen, and phosphorus, are the largest molecules in the body page 53.
are diverse lipids chiefly derived from a 20-carbon fatty acid (arachidonic acid) found in all cell membranes page 47.
are polymers of simple sugars linked together by dehydration synthesis page 43.
are substances composed of two or more components physically intermixed page 29.
Homeostasis of acid-base balance is carefully regulated by the kidneys and lungs and by chemical systems (proteins and other types of molecules) called page 41.
unique substances that cannot be broken down into simpler substances by ordinary chemical methods page 25.
are compact, spherical proteins that have at least tertiary structure page 50.
an important base in the body,is particularly abundant in blood page 40.
Reactions that release energy are called page 37.
are single-chain or single-ring structures containing from three to seven carbon atoms page 43.
the sum of the masses of its protons and neutrons page 27.
The substance on which an enzyme acts is called a page 52.
are basically flat molecules made of four interlocking hydrocarbon rings page 47.
is energy directly involved in moving matter page 24.
substances that conduct an electrical current in solution page 39.
The building blocks of proteins are molecules page 47.
is an ionic compound containing cations other than H1 and anions other than the hydroxyl ion (OH2) page 39.
When two or more different kinds of atoms bind, they form molecules of a page 28.
bear a negative charge equal in strength to the positive charge of the proton page 25.
is a chemical bond between atoms formed by the transfer of one or more electrons from one atom to the other page 32.
have the same number of protons (and electrons), but differ in the number of neutrons they contain page 27

53 Clues: are modified triglycerides page 47. • is energy that travels in waves page 24. • The structural units of nucleic acids page 53. • Reactions that release energy are called page 37. • are formed when atoms share electron pairs page 57. • is anything that occupies space and has mass.Page 24 • contains protons and neutrons tightly bound together. • ...

BASIC CHEMISTRY 2024-09-13

Across

Each element is composed of it. page 24
negatively charged. page 25
complete transfer of electrons.page 34
Process of atomic decay
name given to something that has two poles of charge. page 34
unequal electron pair sharing
a substance composed of two or more components physically intermixed. page 29
equal to the number of protons in it's nucleus. page 27
when bonds are both made and broken. page 36
combination of atoms held together by chemical bonds. page 28
small particles bond to form larger, more complex molecules. page 36
component of proteins and nucleic acids. page 26
found as salt in bones and teeth. page 26
a heterogenous mixture that tends to settle out. page 30
Most useful form of energy in living systems.page 24
Capacity to do work.Page 24
The movement of charged particles.page 24
Contains protons and neutrons bound together. page 25
Anything that occupies space and has mass. Page 24
Energy directly involved in moving matter. page 24
occurs whenever chemical bonds are formed. page 35
reactions that release energy. page 37
component of muscle proteins. page 26
Isotopes that experience atomic decay. page 28
the reactant accepting electrons is said to be. page 36
particles do not settle out or scatter light. page 29
Stored energy. page 24

Down

Have a definite shape and volume. page 24
elements that have multiple structural variations. page 27
the reactant losing the electrons is said to be. page 36
influences the pH of body fluids. page 26
when atoms bind. page 28
gains stability by losing one electron. page 32
average age of the relative weights of all isotopes. page 28
positively charged. page 25
Have definite volume but takes the shape of its container. page 24
Neither definite shape or volume. Page 24
particles are larger than in a solution. page 29
bonds are broken in larger molecules. page 36
when atoms attract electrons very strongly. page 34
Energy in Action. page 24
Stored in bonds of chemical substances. page 24
sum of the masses of its protons and neutrons. page 27
All matter is composed of it. page 25
Table Listing of elements. page 24
where an electron is most likely to be found. page 26
a substance that increases the rate of chemical reactions without themselves becoming chemically changed. page 38
component of all organic molecules. page 26
sharing of electrons. page 32
component of both organic and inorganic molecules. page 26

50 Clues: Stored energy. page 24 • Process of atomic decay • when atoms bind. page 28 • Energy in Action. page 24 • negatively charged. page 25 • positively charged. page 25 • Capacity to do work.Page 24 • unequal electron pair sharing • sharing of electrons. page 32 • Table Listing of elements. page 24 • All matter is composed of it. page 25 • component of muscle proteins. page 26 • ...

Basic Chemistry 2024-09-13

Across

Substances present in great amounts
Their composition is dissimilar in different areas of the mixture
The loss of charges from an atom
An ionic compound containing cations other than H+ and anions other than OH+
A reaction that releases energy
Diverse lipids cheifly derived from a 20-carbon fatty acid found in all cell membranes
Modified triglycerides
They have a bitter taste, feels slippery and are proton acceptors
The form stored in the bonds of chemical substances
Makes up 60-80% of the volume of most living cells
A chemical bond between atoms formed by the transfer of one or more electrons from one atom to another
A group of molecules that includes sugars and starches and represent 1-2% of cell mass
They are insoluble in water but readily dissolvable in organic solvents such as alcohol and ether
Possitively Charged
Energy directly involved in moving matter
Unique substances that cannot be broken down into simpler substances by ordinary chemical methods
Equal to the number of protons in its nucleus and is written as a subscript to the left of its atomic symbol
Two or more atoms held together by chemical bonds
Heterogeneous mixtures with large,often visible solutes that tend to settle out
Polymers of simple sugars linked together by dehydration synthesis
The sum of the masses of its protons and neutrons
An average of the relative weights of all the isotopes of an element
Composes 10-30% of cell mass and is the basic structural material of the body
Single-chain or single-ring structures containing from three to seven carbon atoms
They are neutral but the nucleus is overall positively charged
Elements that have two or more structural variations

Down

These are known as fats when solid and oils when liquid
They bare a negative charge but are equally strengthened to the postive charge of a proton
When shared electrons occupy a single orbital commons to both atoms
A double sugar formed when two monosaccharides are joined by dehydration synthesis
These are known as the building blocks of proteins
Substances present in small amounts
Globular proteins that act as biological catalyts
When an hydrogen atom is already covalently linked to one electronegative atom and is attracted by another electron-hungry atom so that a bridge forms between them
Substances that increase the rate of chemical reactions without themselves being chemically changed
The movements from charged particles
Substances that conduct an electrical current in solution
Elements are composed of more are less identical particles or building blocks known as
Homogeneous mixtures of components that may be gases,liquid or solid
Isotopes that experience radioactivity
This occurs when a mole is broken down into smaller molecules or its constituent atoms
Substances composed of two or more components physically intermixed
They have a sour taste and can react with many metals
The capacity to do work or put matter into motion
Homeostasis of acid-base balance is carefully regulated by thr kidneys,lungs and chemical systems
A net negative charge
A net positive charge
Anything that occupies space and has mass
Two or more different atoms binded together
Flat molecules made of four interlocking hydrocarbon rings

50 Clues: Possitively Charged • A net negative charge • A net positive charge • Modified triglycerides • A reaction that releases energy • The loss of charges from an atom • Substances present in great amounts • Substances present in small amounts • The movements from charged particles • Isotopes that experience radioactivity • Energy directly involved in moving matter • ...

Basic Chemistry 2024-09-13

Across

A radioactive isotope that emits radiation during decay (p. 28).
A reaction that breaks chemical bonds by adding water (p. 38).
A space region around the nucleus where electrons are likely to be found (p. 26).
Reaction A reaction where a compound breaks down into simpler substances (p. 36).
Energy Energy of motion (p. 24).
Bond A bond is formed by sharing electrons between atoms (p. 32).
A positively charged particle in the nucleus (p. 25).
The substance that dissolves the solute in a solution (p. 29).
A negatively charged particle outside the nucleus (p. 25).
Reaction A reaction that releases energy (p. 37).
The smallest unit of a compound with its properties (p. 28).
A homogeneous mixture of substances (p. 29).
Number The number of protons and neutrons in an atom’s nucleus (p. 27).
The capacity to do work or cause change (p. 24).
A substance that cannot be chemically broken down further (p. 25).
The amount of a substance in a given volume (p. 37).
An element that tends to lose electrons and form positive ions (p. 34).
A negatively charged ion (p. 32).
Physical combinations of substances not chemically bonded (p. 29).
A positively charged ion (p. 32).
Table A chart of elements arranged by atomic number, showing repeating properties (p. 25).
A substance that reduces hydrogen ion concentration (p. 39).
Energy Stored energy (p. 24).
A substance that increases hydrogen ion concentration (p. 39).

Down

Bond The force holding atoms together in molecules or compounds (p. 31).
A substance that speeds up a reaction without being consumed (p. 38).
The smallest unit of matter retaining element properties (p. 25).
A mixture of large particles that settle out over time (p. 30).
A reaction where a compound breaks into simpler substances (p. 36).
The loss of electrons from a substance (p. 36).
An atom’s tendency to attract electrons in a bond (p. 34).
A substance formed from two or more chemically bonded elements (p. 28).
A solution that resists pH changes (p. 41).
Reaction A reaction where parts of two reactants are exchanged to form new products (p. 36).
Bond A weak bond between a proton in one molecule and an electronegative atom in another (p. 34).
Energy The minimum energy required to start a reaction (p. 52).
Shell The outermost electron shell of an atom (p. 31).
Reaction A reaction that absorbs energy (p. 37).
A biological catalyst that speeds up reactions (p. 51).
Reaction A process that transforms one set of chemicals into another (p. 35).
Substances that change in a chemical reaction (p. 35).
Reaction A reaction where two or more substances form a new compound (p. 36).
An atom or molecule with an electric charge due to lost or gained electrons (p. 32).
Number The number of protons in an atom's nucleus (p. 27).
Energy Energy that travels in waves (e.g., light) (p. 24).
Atoms of the same element with different neutron numbers (p. 27).
Anything with mass and volume (p. 24).
Substances formed by a chemical reaction (p. 35).
A mixture with small particles that stay dispersed and don’t settle out (p. 30).
A measure of a solution's acidity or basicity (p. 40).

50 Clues: Energy Stored energy (p. 24). • Energy Energy of motion (p. 24). • A negatively charged ion (p. 32). • A positively charged ion (p. 32). • Anything with mass and volume (p. 24). • A solution that resists pH changes (p. 41). • A homogeneous mixture of substances (p. 29). • The loss of electrons from a substance (p. 36). • The capacity to do work or cause change (p. 24). • ...

Basic Chemistry 2024-09-13

Across

Occur when atoms transfer electrons. Page 36
An ion that gain or accept electrons. Page 32
Formed from the moving of charge particles
Molecules that are formed from sharing electrons and are electrically balanced. Page33-34
Anything that has space and mass. Page 24
Substances consisting of two or more components. Page29
Measures the number of atoms and is equal to atomic weight. Page 29
Heterogeneous mixtures that do not settle out. Page 30
Is the same as the number of protons in an atom. Page 27
Atoms that are co posed of the same number of protons and different number of neutrons. Page 27
Cannot be broken down in to any other substance or simpler substances. Page 25
When small particles are bonded together to form large particles. Page 36
Can be found in the nucleus of an atom has a neutral charge.
The average of the mass numbers of the total isotopes of an element. Page 28
Formed when hydrogen atoms share their electrons with another atom. Page 34
Can be found in the centre of the atom and is consist of protons and neutrons. Page25
When large particles are broken which will result in small particles. Page 36
To change back t a fluid state to a more solid state. Page 30
Located around the nucleus and where electrons can be found. Page 26
Increases the rate of reactions without becoming chemically charged. Page 38
Energy that is stored and is not active. Page 24
Substances that are in large amounts. Page 29
Equation describing what happens in a reaction. Page 35
energy Energy of movement or action. Page 24
When two or more atoms combine and is hold by a chemical bond. Page 28

Down

When bonds are broken and created. Page 37
Energy that moves from one place to another in waves. Page 24
symbol Represented by one or two letters. Page 25
The process of the decay of atoms. Page 28
Isotopes that display radioactivity. Page 28
Substances that are in small amounts. Page 2929
Energy that involves the movement of matter. Page 24
Can be found on the shell of an atom and has a positive charge. Page 25
Smallest particles of a chemical substance that is composed of electrons, neutrons and protons. Page 24
Used to express the contents of a solution. Page 29
Bond that is formed during the combination of atoms. Page 31
Formed when electrons are transfer from one atom to another. Page 32
When electron pair sharing is not equal. Page 34
When atoms donate electrons. Page 34
Found in bonds of Chemical substances. Page 24
A type of Homogeneous mixtures that consist of solutes and solvents. Page 29
A type of Heterogeneous mixture with solutes that settles out. Page 30
When atoms attract electrons on its valence shell. Page 34
Regions where the electrons are located on an atom. Page 31
A listing of all the elements and assist in the explanation of the elements properties. Page 25
Showcase atoms chemical behavior. Page 26
Can be found in the nucleus of the atom and has a positive charge. Page 25
The total number of protons and neutrons. Page 27
Formed when atoms share electrons. Page 32
Reacting substances in a reaction. Page 35
When different kinds of atoms are bonded together. Page 28
Loses electrons and are electron donors. Page 32

52 Clues: When atoms donate electrons. Page 34 • Anything that has space and mass. Page 24 • Showcase atoms chemical behavior. Page 26 • When bonds are broken and created. Page 37 • The process of the decay of atoms. Page 28 • Formed from the moving of charge particles • Formed when atoms share electrons. Page 32 • Reacting substances in a reaction. Page 35 • ...

Chemistry FA 2024-08-15

Across

a sub-atomic particle with a positive charge
potassium's electronic configuration is 2,8,8,1, which period is it in?
particles collide and diffuse , this is proved by _______ theory
this holds the all the protons and neutrons in an atom
tritium and deuterium are isotopes of_____
neutrons have ______ charge
movement of particles from higher concentration to lower concentration
the no. of valence electrons in an element determines it's ______
a separation technique which starts with evaporation followed by condensation
hidden heat used to change the matter of particles
when two or more elements bond in a fixed proportion it's called a _____

Down

change from gas to solid
element with an electronic configuration 2,8,3
slows, liquids and gasses are types of ______
same element with same atomic number but different atomic mass
adding impurities to a substance ______ the melting point
another term for atomic mass
when this factor increases rate of diffusion increases
rule that states , the K shell can hold only 2 electrons
this state of matter can't be compressed and only vibrates at its fixed position

20 Clues: change from gas to solid • neutrons have ______ charge • another term for atomic mass • tritium and deuterium are isotopes of_____ • a sub-atomic particle with a positive charge • slows, liquids and gasses are types of ______ • element with an electronic configuration 2,8,3 • hidden heat used to change the matter of particles • ...

Environmental Chemistry 2024-10-24

Across

Used for energy in the human body
Used to identify acids and bases
Energy storage in the human body
Movement of water from an area of high concentration to low
The taste of acids
Has a pH lower than 7
Used for repair and growth, muscular and skeletal structure, and other jobs in cells
Made of 2 or more elements bonded together
Does not contain carbon
Needed in large amounts
Molecules our body needs for survival
Found on the periodic table

Down

The loss of oxygen in an ecosystem due to the addition of fertilizers
Movement of particles from an area of high concentration to low
The taste of bases
Can be reduced with the use of scrubbers
Chains of carbon and hydrogen
Needed in trace amounts
Matter or energy that is harmful to an organism or ecosystem
Has a pH greater than 7
One of the main elements in fertilizers
The coolest science teacher
What the "LD" stands for in "LD50"

23 Clues: The taste of bases • The taste of acids • Has a pH lower than 7 • Needed in trace amounts • Has a pH greater than 7 • Does not contain carbon • Needed in large amounts • The coolest science teacher • Found on the periodic table • Chains of carbon and hydrogen • Used to identify acids and bases • Energy storage in the human body • Used for energy in the human body • ...

IGCSE Chemistry 2024-10-31

Across

Process of breaking down glucose
Organic compounds with an OH group attached
Substances with a range of melting and boiling points
Most abundant element in breathable air
Organic compounds which have single bonds only
Process used to remove smaller particles
Substance with a pH value below 7
Large molecules with more than 50 small molecules
Mixture of two or more metals
Number of free electrons in the outer shell
The liquid in which the solute dissolves
Row on a periodic table is called a ..........
Breaking larger chains of molecules into smaller ones
Process in which green plants create glucose

Down

The result of an acid reacting with a base
Solute dissolved in solvent
Used to speed up reactions
Substance with no water chemically attached
Process to kill microbes in water
Makes up approximately 21% of breathable air
A rock that stores water
Group 7 of the periodic table
Measures temperature
Carbon .......... is toxic to humans
Found on the left of the periodic table

25 Clues: Measures temperature • A rock that stores water • Used to speed up reactions • Solute dissolved in solvent • Group 7 of the periodic table • Mixture of two or more metals • Process of breaking down glucose • Process to kill microbes in water • Substance with a pH value below 7 • Carbon .......... is toxic to humans • Most abundant element in breathable air • ...

Basic Chemistry 2024-11-13

Across

and physical properties are formed.
energy in your diet – carbohydrates, fats, proteins
change -occurs whenever new substances with different
soup
Bonds – Is formed when atoms share one or more pairs of
– one kind of atom; food processing can strip some foods
it causes both atoms to have a charge
mixture – non-uniform distribution of particles ex.
– are substances that are put together but not chemically
Compound - are made up of minerals your body needs –

Down

Bonds – Electrons are transferred from one atom to another
mixture – uniform distribution of particles throughout
salt, water, magnesium
– is the study of the makeup, structure, and properties of
Compound - contain hydrogen and oxygen; all the sources
ex. Milk has calcium and salt
Tea or soft drinks
and the changes that occur to tPure substance – is matter in which all the basic units are the same;
change – involve changing shape, physical state, size,
elements or compounds; elements important for good health
these vital elements – iron, calcium, potassium
without changing the chemical identity.

22 Clues: soup • Tea or soft drinks • salt, water, magnesium • ex. Milk has calcium and salt • and physical properties are formed. • it causes both atoms to have a charge • without changing the chemical identity. • these vital elements – iron, calcium, potassium • energy in your diet – carbohydrates, fats, proteins • mixture – non-uniform distribution of particles ex. • ...

Chemistry Crossword 2025-10-13

Across

: A reaction that releases heat energy to the surroundings
: Negatively charged particle that follows an orbit of a level around a nucleus
: An instrument used to measure temperature
: A measure of how hot or cold a substance is
: A state of matter that has a definite volume but no fixed shape
PARTICLE THEORY : The theory that all matter is made up of tiny particles
: A state of matter that has no fixed shape or volume
: Neutral particle found in the nucleus
: An instrument used to measure temperature
: A substance made up of two or more elements chemically combined in fixed proportions
: A combination of two or more substances
: A state of matter that has a fixed shape and volume

Down

: Process of liquid turning into gas
: Smallest unit of matter
of these particles determine the state of matter
:A substance that contains only one type of atom and cannot be broken down into anything simpler by chemical means.
are not chemically bonded and can be separated by physical means
: Rapid vaporization of a liquid
: Solid turning into liquid
: Positively charged particle in the nucleus
: Liquid turning into solid
are in constant motion and that the energy and
: Gas changing into liquid

23 Clues: : Smallest unit of matter • : Gas changing into liquid • : Solid turning into liquid • : Liquid turning into solid • : Rapid vaporization of a liquid • : Process of liquid turning into gas • : Neutral particle found in the nucleus • : A combination of two or more substances • : An instrument used to measure temperature • : An instrument used to measure temperature • ...

Chemistry Crossword 2025-10-13

Across

: A substance made up of two or more elements chemically combined in fixed proportions
: Gas changing into liquid
: A combination of two or more substances that are not chemically bonded and can be separated by physical means
: A reaction that releases heat energy to the surroundings
: Negatively charged particle that follows an orbit of a level around a nucleus
: Smallest unit of matter
: The temperature at which a liquid changes to a gas
: A state of matter that has a fixed shape and volume

Down

: Rapid vaporization of a liquid
: Process of liquid turning into gas
: A measure of how hot or cold a substance is
: An instrument used to measure temperature
: Liquid turning into solid
: Positively charged particle in the nucleus
PARTICLE THEORY : The theory that all matter is made up of tiny particle which are in constant motion and that the energy arrangement of these particles determine the state of matter
: Neutral particle found in the nucleus
: A substance that contains only one type of atom and cannot be broken down into anything simpler by chemical means.
: A state of matter that has a definite volume but no fixed shape
: Solid turning into liquid
: A state of matter that has no fixed shape or volume

20 Clues: : Smallest unit of matter • : Gas changing into liquid • : Liquid turning into solid • : Solid turning into liquid • : Rapid vaporization of a liquid • : Process of liquid turning into gas • : Neutral particle found in the nucleus • : An instrument used to measure temperature • : Positively charged particle in the nucleus • : A measure of how hot or cold a substance is • ...

chemistry puzzle 2025-08-11

Across

all lithium atoms have _____ protons
an atom that has 2 protons is the element _____
the mass number of an atom that has two protons, two electrons, and two neutrons
Which subatomic particle has the smallest mass?
atoms that have the same number of protons but a different number of neutrons
center of an atom
isotopes have the same number of protons but a different number of ____
word that means "smaller than an atom"
an atom that has 1 proton is the element _____
if given a choice between the mountains or the beach, you would choose the _____
the elements are organized in the _____ table

Down

the element that is used in some nuclear bombs
atoms with the same number of protons are the same _____
the mass number of an atom that has three protons, three electrons, and four neutrons
these animals can either be land animals OR water animals
a _____ average is an average based on how important each number is
Do all nitrogen atoms have the same number of protons?
an atom that has 8 protons is the element _____
the charge of a proton
the charge of a neutron
the amount of "stuff" in an object
most of an atom is _____ space
the mass number of an atom that has one proton, zero neutrons, and one electron
the charge of an electron
Do positive and negative charges attract each other, or do they repel?
an atom that has 5 protons is the element _____

26 Clues: center of an atom • the charge of a proton • the charge of a neutron • the charge of an electron • most of an atom is _____ space • the amount of "stuff" in an object • all lithium atoms have _____ protons • word that means "smaller than an atom" • the elements are organized in the _____ table • the element that is used in some nuclear bombs • ...

Chemistry Vocabulary 2025-08-22

Across

State of matter in which the molecules have a fixed volume but not a fixed shape
Hot air balloon pilot
Polymer developed by Leo Baekeland
Video game developer
A row of the periodic table
English scientist, developed an atomic theory
A solid, liquid or gas that possesses inertia and is capable of occupying space
A property related to the resistance of a fluid to flow
Temperature at which a solid becomes a liquid at a specified pressure
To pass from liquid to solid state by loss of heat

Down

A substance that will not dissolve in a liquid
The degree of agreement among individual measurements
Ancient Greek who called the tiny particles atoms
Irish chemist
A measure of the closeness between a measured value and the accepted or true value
State of matter in which the molecules do not a fixed volume and a fixed shape
State of matter in which the molecules have both a fixed volume and a fixed shape
A conceptual representation of a process, system, or object
A combination of two or more substances
Units The accepted international units of measurements

20 Clues: Irish chemist • Video game developer • Hot air balloon pilot • A row of the periodic table • Polymer developed by Leo Baekeland • A combination of two or more substances • English scientist, developed an atomic theory • A substance that will not dissolve in a liquid • Ancient Greek who called the tiny particles atoms • To pass from liquid to solid state by loss of heat • ...

Organic Chemistry 2025-09-21

Across

functional group of alcohols
highest boiling point fraction from fractional distillation of crude oil
compound formed when alcohol react with carboxylic acid
gas released from potassium carbonate reacting with propanoic acid
by-product of esterification
gas released from reaction of methanoic acid with sodium metal
General name for organic molecules made of only hydrogen and carbon
butan-1-ol and butan-2-ol
General name for saturated hydrocarbons
reaction between alcohol and carboxylic acid
product of pentanol reacting with propanoic acid

Down

properties used to separate crude oil mixture
main constituent of natural gas
The part of a molecule that gives it its chemical properties
easy to evaporate
Hydrocarbons with one or more double bonds
long hydrocarbon chain break down into shorted chains by heating
reaction between ethanoic acid and potassium hydroxide
simplest alkene
petroleum product used as jet fuel
reaction converting alkene to alcohol
solid form of fossil fuel

22 Clues: simplest alkene • easy to evaporate • butan-1-ol and butan-2-ol • solid form of fossil fuel • functional group of alcohols • by-product of esterification • main constituent of natural gas • petroleum product used as jet fuel • reaction converting alkene to alcohol • General name for saturated hydrocarbons • Hydrocarbons with one or more double bonds • ...

Chemistry Review 2025-09-12

Across

A group of atoms bonded together
Reaction with oxygen that releases heat and light
Substance formed in a chemical reaction
Starting substance in a chemical reaction
Electrons in the outermost shell
Type of bonding with a ‘sea of electrons’
Scale used to measure acidity or alkalinity
A reaction that releases heat
base Reaction where an acid reacts with a base to form salt and water
A substance that can dissolve in a solvent
Process that uses electricity to split compounds

Down

Reaction where a compound breaks down into simpler substances
Substance that speeds up a reaction without being used up
where two or more substances combine to form one product
A charged particle
An insoluble solid formed in a reaction
Substance that reacts with acids to form salt and water
The smallest unit of matter
Mixture of metals or metals with other elements
Table that arranges elements by atomic number
Reaction between acid and base

21 Clues: A charged particle • The smallest unit of matter • A reaction that releases heat • Reaction between acid and base • A group of atoms bonded together • Electrons in the outermost shell • Substance formed in a chemical reaction • An insoluble solid formed in a reaction • Starting substance in a chemical reaction • Type of bonding with a ‘sea of electrons’ • ...

CHEMISTRY CROSSWORD 2025-09-15

Across

Technique used to separate colored components of a mixture
Process of coating Zn over Fe to prevent rusting
Gas detected by lime water test
The quantum number that specifies the size of the orbital
Found in milk but also used in the plaster of paris
Element with highest electronegativity
Phenomenon for stability of benzene
Liquid metal
Number of atoms in an atom
Shape of p-orbital
Opposite of markovnikov’s rule
Aromatic substitution reaction involving nitrobenzene formation

Down

It looks like water but burns with blue flame
Flask used for titration experiments
Element found in haemoglobin
The shape of NH3 molecule
Hardest metal
Glassware used for accurate measurement of fixed volumes of solutions
Orbitals with same energy levels are called
The SI unit of amount of substance
Rule/principle to predict the order of filling of orbitals
The pH of neutral solution
It has shells but no tortoise involved
Scientist who discovered nucleus

24 Clues: Liquid metal • Hardest metal • Shape of p-orbital • The shape of NH3 molecule • Number of atoms in an atom • The pH of neutral solution • Element found in haemoglobin • Opposite of markovnikov’s rule • Gas detected by lime water test • Scientist who discovered nucleus • The SI unit of amount of substance • Phenomenon for stability of benzene • Flask used for titration experiments • ...

Chemistry Terms 2025-09-16

Across

element with 15 electrons
natural phenomenon that is evidence of Bohr model
electron pairs by themselves
particle with no electric charge
OH-
Hydrogen-3 by another name
spectrum emission of light at specific wavelengths
bonds between metals and non-metals
dihydrogen monoxide by another name

Down

ion charge of aluminum
historical name of NH3
shared bonds
number of oxygen atoms in carbon monoxide
groups of ions that tend to stay together
HNO3
diagram used to visualize covalent bonding
number of electrons transferred when Zr bonds ionically
number of protons and neutrons in a nucleus
maximum number of electrons in 2nd shell
particle found outside the nucleus

20 Clues: OH- • HNO3 • shared bonds • ion charge of aluminum • historical name of NH3 • element with 15 electrons • Hydrogen-3 by another name • electron pairs by themselves • particle with no electric charge • particle found outside the nucleus • bonds between metals and non-metals • dihydrogen monoxide by another name • maximum number of electrons in 2nd shell • ...

Chemistry Crossword 2025-12-11

Across

horizontal row on periodic table
neutral particle in the nucleus
unit equal to 6.022×10²³ particles
scientist whose number is 6.022×10²³
number of protons in an atom
change in state, not identity
pure substance made of one type of atom
starting substance in a chemical reaction
energy required to remove an electron
positively charged particle
substance formed by a chemical reaction
basic unit of matter
dense center of the atom
weighted average mass of all isotopes of an element

Down

total protons and neutrons
force that holds atoms together
process where substances are transformed
atom with a charge
vertical column on periodic table
atoms with same protons but different neutrons
group of atoms bonded together
difference between actual and experimental value
creator of the periodic table
mass cannot be created or destroyed
substance of two or more bonded elements
symbolic representation of a chemical reaction
negatively charged particle

27 Clues: atom with a charge • basic unit of matter • dense center of the atom • total protons and neutrons • negatively charged particle • positively charged particle • number of protons in an atom • creator of the periodic table • change in state, not identity • group of atoms bonded together • force that holds atoms together • neutral particle in the nucleus • ...

Clinical Chemistry 2025-12-11

Across

Sweat chloride tests for this disease
Common obstruction of the urinary tract
Occurs when an enzyme is exposed to intense heat
Measured osmolality - calculated osmolarity
These interfere with enzyme action
Autosomal recessive disease know for frequent lung infections
Spillover is found in urine when serum level is >180 mg/dL
Breakdown of glycogen to glucose
Variation of concentration of an analyte in the body
Brain damage that can result from neonatal jaundice

Down

Most abundant protein in plasma
In this disease, gluten is toxic to the small intestinal mucosa
Increased in acute liver failure and must be placed on ice immediately after draw
Common anticoagulant in specimen collection tubes for chemistry
Stimulates secretion of gastric acid, pepsinogen, IF and secretin
Mnemonic for causes of increased anion gap
Increased during gout infection
The ability to make a positive dx in pts with the disease
Major metabolite of dopamine
Pancreatic enzyme that rises within 5 hours of pancreatitis onset
Confirmatory test for bilirubin in urine
Anticoagulated tube that cannot be used to measure potassium
Vehicles for intra/extra cellular communitcation

23 Clues: Major metabolite of dopamine • Most abundant protein in plasma • Increased during gout infection • Breakdown of glycogen to glucose • These interfere with enzyme action • Sweat chloride tests for this disease • Common obstruction of the urinary tract • Confirmatory test for bilirubin in urine • Mnemonic for causes of increased anion gap • ...

Chemistry 1 2026-04-28

Across

Type of bond where electrons are shared unequally between atoms
The charge an atom would have if electrons were transferred completely
Set of relationships describing pressure, volume, temperature, and amount of gas
Reactant that runs out first and determines how much product forms
Comparison of actual yield to theoretical yield expressed as a percentage
Using balanced equations to calculate quantities of reactants and products
Type of bonding where atoms share electrons to become stable
Force that holds atoms together in a compound
Neutral particle found in the nucleus of an atom
Chemical equation with equal numbers of each atom on both sides
Principle stating matter cannot be created or destroyed in a chemical reaction
Positively charged particle found in the nucleus of an atom

Down

Minimum energy needed to start a chemical reaction
Two or more atoms chemically bonded together
Electrons in the outermost energy level that are involved in bonding
Substance formed from the attraction between positive and negative ions
Attractions between molecules that affect physical properties like boiling point
Relationship showing pressure and volume are inversely proportional at constant temperature
Measurement of concentration defined as moles of solute per liter of solution
Energy required to remove an electron from an atom in the gas phase

20 Clues: Two or more atoms chemically bonded together • Force that holds atoms together in a compound • Neutral particle found in the nucleus of an atom • Minimum energy needed to start a chemical reaction • Positively charged particle found in the nucleus of an atom • Type of bonding where atoms share electrons to become stable • ...

Organic Chemistry 2026-04-22

Across

Molecule with only C/H, and no pi bonds or rings
Factors having to do with where the electrons are found (e.g., electronegativity, resonance, hybridization, or inductive effects)
The end product of a synthesis
-CH3
Any molecule with an H
Lover of nuclei
Most-substituted alkene product of an elimination reaction
Two carbons away from the leaving group/carbocation
Polar solvents without an H on N, O, or X
RMgX
Any molecule with a lone pair

Down

Lover of electrons
+ charge next to (and in resonance with) pi bond(s) (not benzene ring)
Polar solvents with an H on N, O, or X
A cation with a +1 formal charge on a carbon
Least-substituted alkene product of an elimination reaction
C=O
One carbon away from the leaving group/carbocation carbon
+ charge next to benzene ring (and in resonance with benzene pi bonds)
Factors having to do with overcrowding (forcing atoms to be too close together)
The carbocation carbon or the C attached to the leaving group

21 Clues: C=O • -CH3 • RMgX • Lover of nuclei • Lover of electrons • Any molecule with an H • Any molecule with a lone pair • The end product of a synthesis • Polar solvents with an H on N, O, or X • Polar solvents without an H on N, O, or X • A cation with a +1 formal charge on a carbon • Molecule with only C/H, and no pi bonds or rings • Two carbons away from the leaving group/carbocation • ...

Chemistry 2022-08-17

Across

composed of one kind of atom
the smallest unit of matter
science, where chemists use this knowledge to make new products, improve processes, and solve problems.
the study of carbon and its compounds
the ratio of an objects mass to its volume and is measured in gram per milliliter or cubic centimeter
the branch of chemistry that applies physics to the study of chemistry

Down

composed of 2 or more elements chemically combined
anything that has mass and occupies space
helps us to understand how things work, contributes to our knowledge, and help us make predictions about what will happen
the study of matter and energy and the interactions between them

10 Clues: the smallest unit of matter • composed of one kind of atom • the study of carbon and its compounds • anything that has mass and occupies space • composed of 2 or more elements chemically combined • the study of matter and energy and the interactions between them • the branch of chemistry that applies physics to the study of chemistry • ...

Les matières scolaires 2022-10-01

Across

German
Geography
Technology
Art
Chemistry

Down

Irish
Home Economics
Physics
History
French
Biology

11 Clues: Art • Irish • German • French • Physics • History • Biology • Geography • Chemistry • Technology • Home Economics

At school 2021-02-04

Across

nożyczki
nauczyciel
chemia
geografia

Down

muzyka
linijka
uczyć się
ołówek
przerwa
zeszyt
biologia

11 Clues: muzyka • ołówek • zeszyt • chemia • linijka • przerwa • nożyczki • biologia • uczyć się • geografia • nauczyciel

Project 1 page 35 word list 2025-02-03

Project 1 page 35 word list crossword puzzle

Across

félév
biológia
harminc
tantárgy
egyenruha
óra

Down

kedvenc
kémia
dupla
viselni (ruhát)
fizika
óra

12 Clues: óra • óra • kémia • dupla • félév • fizika • kedvenc • harminc • biológia • tantárgy • egyenruha • viselni (ruhát)

Anthony Chiappetta stoich 2022-03-08

Anthony Chiappetta stoich crossword puzzle

Across

a yield of a certain percent
math and science term
has to do with moles
combining chemistry and biology
the process of converting something
an atom between (Pa) and a atom of 237

Down

name of a science class
a unit of measurment used to weigh atoms
a atom with a mass of 12
a atom with the symbol of (Mc)

10 Clues: has to do with moles • math and science term • name of a science class • a atom with a mass of 12 • a yield of a certain percent • a atom with the symbol of (Mc) • combining chemistry and biology • the process of converting something • an atom between (Pa) and a atom of 237 • a unit of measurment used to weigh atoms

Project 1 unit 3D------------- Name : ______________ 2017-05-17

Project 1 unit 3D------------- Name : ______________ crossword puzzle

Across

němčina
chemie
fyzika
dějepis

Down

zeměpis
hudební výchova
výtvarná výchova
matematika
výpočetní technika
angličtina
přírodní vědy
biologie

12 Clues: chemie • fyzika • zeměpis • němčina • dějepis • biologie • matematika • angličtina • přírodní vědy • hudební výchova • výtvarná výchova • výpočetní technika

Chemistry 2022-08-17

Across

composed of 2 or more elements chemically combined
the study of matter and energy and the interactions between them
science, where chemists use this knowledge to make new products, improve processes, and solve problems.
the branch of chemistry that applies physics to the study of chemistry
the ratio of an objects mass to its volume and is measured in gram per milliliter or cubic centimeter

Down

helps us to understand how things work, contributes to our knowledge, and help us make predictions about what will happen
the study of carbon and its compounds
anything that has mass and occupies space
composed of one kind of atom
the smallest unit of matter

Frankenstein 2021-11-22

Across

What university did Victor Frankenstein go to?
Victor's chemistry teacher
Where was Robert Walton headed at the beginning of the novel?
Who created the monster?

Down

Victor's best friend
Who attacked the monster at the cottage?
Who was hanged for the murder of Victor's brother
Where was Victor Frankenstein born and raised?
Victor's wife
What did science Victor study in particular?

10 Clues: Victor's wife • Victor's best friend • Who created the monster? • Victor's chemistry teacher • Who attacked the monster at the cottage? • What did science Victor study in particular? • Where was Victor Frankenstein born and raised? • What university did Victor Frankenstein go to? • Who was hanged for the murder of Victor's brother • ...

Anthony Chiappetta stoich 2022-03-08

Across

a atom with a mass of 12
has to do with moles
an atom between (Pa) and a atom of 237
name of a science class
a unit of measurment used to weigh atoms

Down

a yield of a certain percent
the process of converting something
combining chemistry and biology
math and science term
a atom with the symbol of (Mc)

words crossword 2025-02-04

Across

this mixture is saturated in oil
a solute is dissolved in another substance
means for something to be mixed together
the student taking chemistry in high-school
watter that is safe to drink

Down

used to separate the liquid
something that disappears into the water
the material dissolved in solvent
caused in the puddle to disappear
for something to be mixed together

10 Clues: used to separate the liquid • watter that is safe to drink • this mixture is saturated in oil • the material dissolved in solvent • caused in the puddle to disappear • for something to be mixed together • something that disappears into the water • means for something to be mixed together • a solute is dissolved in another substance • ...

Unit 1 2024-09-11

Across

- kirjandus
- bioloogia
- matemaatika
- keemia
- kunst; kunstiõpetus
- ajalugu

Down

- õppeaine
- lemmik
- matemaatika
- prantsuse keel
- hispaania keel
- geograafia
- kirjandus
- saksa keel

14 Clues: - keemia • - lemmik • - ajalugu • - õppeaine • - kirjandus • - kirjandus • - bioloogia • - geograafia • - saksa keel • - matemaatika • - matemaatika • - prantsuse keel • - hispaania keel • - kunst; kunstiõpetus

clases 2018-03-13

Across

physics
medical anatomy
history
band
seminary
calculus

Down

body conditioning
math
marine biology
driver's education
chemistry
psychology

12 Clues: math • band • physics • history • seminary • calculus • chemistry • psychology • marine biology • medical anatomy • body conditioning • driver's education

Chemistry Crossword 2018-12-13

Across

A system of easy-to-use warning symbols for hazardous materials
slow chemical change that occurs when oxygen in the air reacts with metal
description of a solid that can be stretched into a long wire
ability of a substance to conduct electricity or heat
Change of state from a gas to a liquid
Solid, liquid, gas and plasma
chemical reaction that produces heat
Measure of atomic mass
Change of state from a liquid to a solid
Amount of mass in a given volume of a substance

Down

group 17 elements in the periodic table least reactive metals
number of protons in the nucleus equal to electrons
Change in the appearance or state of a substance that does not change the composition
Change of state from solid to a liquid
substance that speeds up chemical reactions
positively charged center of an atom contains protons and nuetrons
chemical reaction that absorbs heat
invisible negatively charged particle that orbits the nucleus of an atom
Change of state from a liquid to a gas
pure substance formed when at least one ,metal and nonmetal combine
Change of stare from a solid to gas or a gas to a solid
a material that electricity or heat can move through easily
chemical combination of two or more substances in a specific ratio
pure substance that cannot be broken down into other substances contains one atom
Catalyst involved in chemical reactions in living things

25 Clues: Measure of atomic mass • Solid, liquid, gas and plasma • chemical reaction that absorbs heat • chemical reaction that produces heat • Change of state from solid to a liquid • Change of state from a gas to a liquid • Change of state from a liquid to a gas • Change of state from a liquid to a solid • substance that speeds up chemical reactions • ...

Chemistry Crossword 2019-01-30

Across

The combination of elements to form compounds has a chemical formula and a
The formula identifies which elements and how many of each are in the compound.
Is also a cloudy mixture, but the particles are sosmall that they cannot be filtered out easily (emulsionsare types of colloids in which liquids are dispersed inliquids)
The only elements in this group known to produce a magnetic field are iron, cobalt and nickel
Occurs when two or more substances react and create one or more new substances
Each substance is not clearly visible(A substance dissolved in water is called an aqueous solution)
In a chemical reaction, the total mass of the reactants,is always equal to the total mass of the products.
Are reactive nonmetallic elements that form strongly acidic compounds with hydrogen, from which simple salts can be made
Early chemists used symbols of the sun and the planets to identify the elements known to them.this later was a problem, when more elements were discovered, because they ran out of planets.
Are not consumed in the reaction. These can be found in living and non-living things.

Down

Are pure substances formed as a result of the attraction between particles of opposite charges, called ions.
The substances at the beginning of the reaction are called
In between elements were called having properties of both metals and non-metals.
The new materials produced by the reaction are called
Each substance in the mixture is visible
Part pharmacist and part mystic) developed many useful procedures, including distillation, and they described the properties of many different materials. They also thought they could change lead and copper into gold
Cannot be broken down into any simpler substance
Is a combination of two or more elements in fixed proportions
Change in color Change in odour, Formation of a gas (bubbles) in a liquid, Formation of a solid (precipitate) in a liquid, Release or absorption of energy (heat), The change is difficult to reverse,
Is a slow chemical change that occurs when oxygen in the air reacts with a metal
compounds When non-metals combine, they producea pure substance called a
Charges A superscript ( + ) or a ( – ) are used to indicate the charge. Na+ and Cl
Are very reactive, electropositive, monovalent metals forming strongly alkaline hydroxides.
Is a cloudy mixture in which tiny particles are held(suspended) with another substance, and can be filtered out
Help in the reactions in the body, which break down food. They also get rid of poison in the body.

25 Clues: Each substance in the mixture is visible • Cannot be broken down into any simpler substance • The new materials produced by the reaction are called • The substances at the beginning of the reaction are called • Is a combination of two or more elements in fixed proportions • compounds When non-metals combine, they producea pure substance called a • ...

Chemistry Crossword 2018-12-10

Across

positively charged center of an atom contains protons and nuetrons
Change of stare from a solid to gas or a gas to a solid
invisible negatively charged particle that orbits the nucleus of an atom
chemical combination of two or more substances in a specific ratio
a material that electricity or heat can move through easily
Change of state from a gas to a liquid
A system of easy-to-use warning symbols for hazardous materials
chemical reaction that produces heat
Measure of atomic mass
Change in the appearance or state of a substance that does not change the composition
Solid, liquid, gas and plasma
number of protons in the nucleus equal to electrons

Down

Catalyst involved in chemical reactions in living things
description of a solid that can be stretched into a long wire
Amount of mass in a given volume of a substance
pure substance formed when at least one ,metal and nonmetal combine
Change of state from a liquid to a solid
Change of state from a liquid to a gas
substance that speeds up chemical reactions
group 17 elements in the periodic table least reactive metals
chemical reaction that absorbs heat
slow chemical change that occurs when oxygen in the air reacts with metal
ability of a substance to conduct electricity or heat
pure substance that cannot be broken down into other substances contains one atom
Change of state from solid to a liquid

25 Clues: Measure of atomic mass • Solid, liquid, gas and plasma • chemical reaction that absorbs heat • chemical reaction that produces heat • Change of state from a liquid to a gas • Change of state from a gas to a liquid • Change of state from solid to a liquid • Change of state from a liquid to a solid • substance that speeds up chemical reactions • ...

chemistry crossword 2019-02-05

Across

characteristic of a substance
yellow triangle
able or likely to shatter violently or burst apart
liquid, solid, and gas
liquid to solid
liquid to gas
solid turns to gas without going through the liquid state
sediments, soil and rocks are added to a landform or land mass
occupies space and possesses rest mass
dangerously reactive

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burning of the skin
any property that is measurable
a change were a new substance is formed and is not reversible
a change were no new substance is formed and is irreversible
gas under pressure
red octagon
orange diamond
poisonous
water that collects as droplets on a cold surface when humid air is in contact with it.
combined chemically with oxygen
catches fire easily
producing electricity
risk to human health
causes slight inflammation
solids to liquid

25 Clues: poisonous • red octagon • liquid to gas • orange diamond • yellow triangle • liquid to solid • solids to liquid • gas under pressure • burning of the skin • catches fire easily • risk to human health • dangerously reactive • producing electricity • liquid, solid, and gas • causes slight inflammation • characteristic of a substance • any property that is measurable • combined chemically with oxygen • ...

Chemistry Vocabulary 2018-05-18

Across

figures all the digits that can be known precisely in a measurement
A mixture that is completely uniform in its composition
matter that has a definite shape and volume
The ratio of the mass of an object to it volume
the amount of matter in an object
negative and a negative or positive and a positive charge
a homogeneous mixture
a pair of valence electrons that is not involved in bonding
a negatively charged subatomic particle
a starting substance in a chemical reaction
A reaction that has to do with fire
atoms of the same element that have the same atomic number

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positive and negative charges
a chemical equation in which mass is converted
a mixture that is not uniform in composition
A substance that can not be changed into something simpler
the smallest particle of an element
the space occupied by a sample of matter
an arrangement of elements into rows and columbs
anything that takes up space and has mass

20 Clues: a homogeneous mixture • positive and negative charges • the amount of matter in an object • the smallest particle of an element • A reaction that has to do with fire • a negatively charged subatomic particle • the space occupied by a sample of matter • anything that takes up space and has mass • matter that has a definite shape and volume • ...

Chemistry Crossword 2017-11-07

Across

The smallest part of an element
The sum of protons and neutrons in an atom
The most stable and nonreactive elements
A change that results when two or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones
A chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
A combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
Invisible negatively charged particle that orbits the nucleus of an atom
The ability of a substance to conduct electricity or heat
Substance that helps a chemical reaction to proceed more quickly
A pure substance formed when two non-metals combine
A cloudy mixture that cannot be separated out from the other substance
A slow chemical change that occurs when oxygen in the air reacts with a metal
The most reactive non-metal
An atom that has become electrically charged by losing or gaining electrons

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An experiment in which all reactants and all products of a chemical reaction are accounted for
A reaction that takes place when two or more substances react to form new substances
The mass of one atom
The most reactive of metals
A pure substance formed when a metal and non-metal combine
A chemical combination of two or more elements in a specific ratio
The vertical columns in the periodic table
The number of protons in the nucleus of one atom of an element
An element that has both metallic and non-metallic properties
Orbit of electrons around the nucleus of an atom
A pure substance that cannot be broken down into other substances; substance made up of only one type of atom

25 Clues: The mass of one atom • The most reactive of metals • The most reactive non-metal • The smallest part of an element • The most stable and nonreactive elements • The sum of protons and neutrons in an atom • The vertical columns in the periodic table • Orbit of electrons around the nucleus of an atom • A pure substance formed when two non-metals combine • ...

Chemistry Crossword 2017-11-07

Across

slow chemical change that occurs when oxygen in the air reacts with a metal
number of protons in the nucleus of one atom of an element
ability of a substance to conduct electricity or heat
combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
a reaction that takes place when two or more substances react to form new substances
chemical reaction that releases eenergy
description of how a substance interacts with other substances, such as acids;chemical properties are observable only when a chemical change occurs
principle that matter is not created or destroyed in a chemical reaction; the mass of the products always equals the mass of the reactants
metals group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals
chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
an experiment in which all reactants and all products of a chemical reaction are accounted for

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substance that helps a chemical reaction to proceed more quickly
change that results when two or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones
mass of one atom of an element calculated from the total number of protons,neutrons, and electrons of that atom; measured in atomic mass units (amu)
catalyst involved in chemical reactions in living things
chemical reaction that absorbs energy
vertical column of elements in the periodic table; elements in a family all have similar chemical properties; also called a family
invisible negatively charged particle that orbits the nucleus of an atom
measure of atomic mass; 1 amu is equal to 1/12th the mass of a carbon 12 atom
compound that dissolves in water to form a solution with a pH lower than 7
(CO(g))colourless, odourless gas;produced by incomplete combustion of chemicals containing carbon (e.g. hydrocarbons); major source: motor vehicles
chemical combination of two or more elements in a specific ratio
orbit of electrons around the nucleus of an atom
group 1 elements in the periodic table, not including hydrogen; the most reactive of the metals
cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
the smallest part of an element that is representative of that element; a neutral particle made up of a nucleus containing protons and neutrons, and in which the number of electrons equals the number of protons

26 Clues: chemical reaction that absorbs energy • chemical reaction that releases eenergy • orbit of electrons around the nucleus of an atom • ability of a substance to conduct electricity or heat • catalyst involved in chemical reactions in living things • number of protons in the nucleus of one atom of an element • ...

Chemistry Crossword 2017-11-07

Across

pure substance that cannot be broken down into other substances; substance made up of only one type of atom
group 17 elements in the periodic table;the most reactive non-metals
description of how a substance interacts with other substances, such as acids;chemical properties are observable only when a chemical change occurs
reaction that takes place when two or more substances react to form new substances
the smallest part of an element that is representative of that element; a neutral particle made up of a nucleus containing protons and neutrons, and in which the number of electrons equals the number of protons
a material that electric charge can move through easily
description of a solid that can be stretched into a long wire
group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals
combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
change that results when two or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones
mass of one atom of an element calculated from the total number of protons,neutrons, and electrons of that atom; measured in atomic mass units (amu)
chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
of mass principle that matter is not created or destroyed in a chemical reaction; the mass of the products always equals the mass of the reactants
an experiment in which one or more products of a chemical reaction can escape

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invisible negatively charged particle that orbits the nucleus of an atom
pure substance formed when at least one metal and one non-metal combine
number of protons in the nucleus of one atom of an element
group 1 elements in the periodic table, not including hydrogen; the most reactive of the metals
chemical reaction that releases energy
chemical reaction that absorbs energy
ability of a substance to conduct electricity or heat
measure of atomic mass; 1 amu is equal to 1/12th the mass of a carbon 12 atom
an experiment in which all reactants and all products of a chemical reaction are accounted for
atom that has become electrically charged because it has lost or gained electrons; a positive ion is an atom that has lost one or more electrons;a negative ion is an atom that has gained one or more electrons
catalyst involved in chemical reactions in living things

25 Clues: chemical reaction that absorbs energy • chemical reaction that releases energy • ability of a substance to conduct electricity or heat • a material that electric charge can move through easily • catalyst involved in chemical reactions in living things • number of protons in the nucleus of one atom of an element • ...

Chemistry crossword 2017-03-26

Across

A reaction that involves the breakdown of a compound into simpler substances
An ion that does not take part in a chemical reaction
A reaction that involves the building up of compounds by combining simpler substances, normally elements
A theory stating that the particles involved in a chemical reaction must collide in order to react
A strong acid readily releases a hydrogen ion in a chemical reaction
A reaction used to prodduce solid products from solutions of ionic substances
A smaller molecule from which polymers are made
The number of active molecules in a set volume of solution
a substance that can be broken down by bacteria, fungi and other living organisms
a substance that increases the rate of a reaction but is not used up in the reaction
a mixture of a solute dissolved in a solvent such as water

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A long-chain molecule formed by the joining of many smaller repeating molecules
An insoluble compound formed in a precipitation reaction
An acid which most of its molecules release hydrogen ions into solution
A reaction that involves te combination of oxygen with a fuel
A reaction in which an acid and a base combine to produce a metal salt and water
A molecule that contains only carbon and hydrogen atoms
This refers to an acid solution with a high concentration of hydrogen ions
How fast or slow a reaction proceeds
Process of joining of smaller units to form a long-chain molecule
A reaction that involves oxygen and releases light and heat energy
A small number of active molecules

22 Clues: A small number of active molecules • How fast or slow a reaction proceeds • A smaller molecule from which polymers are made • An ion that does not take part in a chemical reaction • A molecule that contains only carbon and hydrogen atoms • An insoluble compound formed in a precipitation reaction • The number of active molecules in a set volume of solution • ...

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