chemistry Crossword Puzzles
Chemistry Unit One 2022-08-19
Across
- the number of digits in a value, often a measurement, that contribute to the degree of accuracy of the value
- SI unit for length
- a room or building equipped for scientific experiments, research, or teaching, or for the manufacture of drugs or chemicals.
- the closeness of a result to the true value
- a bottle, usually of glass, having a rounded body and a narrow neck, used especially in laboratory experimentation.
- a metal stand consisting of a long upright rod attached to a heavy rectangular base that is used with rings and clamps for supporting laboratory apparatus.
- the amount of 3D space a substance or object occupies.
- a way of writing very large or very small numbers
- a unit of measurement obtained by multiplication or division of the base units of a system
- a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
- king who tragically died by drinking chocolate milk
- the scientific study of the properties and behavior of matter
Down
- when an object is largely immersed in a fluid, pushing it out of the way and taking its place
- a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top and closed at the bottom.
- a measure of the amount of matter in an object.
- the SI unit of mass
- a thin glass vessel, with a lip for pouring, used as containers for liquids.
- the process of changing or causing something to change from one form to another.
- a scale of temperature on which water freezes at 32° and boils at 212° under standard conditions.
- the scale of temperature in which water freezes at 0° and boils at 100° under standard conditions.
- the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.
- refinement in a measurement, calculation, or specification, especially as represented by the number of digits given.
- roughly calculate or judge the value, number, quantity, or extent of.
- large pincers for grasping and lifting vessels of heat-resistant material used in high temperature chemical reactions.
- the SI unit of volume
- a tall narrow container with a volume scale used especially for measuring liquids.
- a quantity chosen as a standard in terms of which other quantities may be expressed.
- base unit of thermodynamic temperature measurement in the International System of Units (SI)
- the force acting on the object due to gravity.
- the measure of how much “stuff” is in a given amount of space
30 Clues: SI unit for length • the SI unit of mass • the SI unit of volume • the closeness of a result to the true value • the force acting on the object due to gravity. • a measure of the amount of matter in an object. • a way of writing very large or very small numbers • king who tragically died by drinking chocolate milk • the amount of 3D space a substance or object occupies. • ...
Chemistry Crossword Review 2022-09-01
Across
- Separating components of a liquid mixture based on how fast the parts travel up a special paper.
- Separating components of a mixture based on the difference in density of the parts of the mixture. Can be two liquids or solids and liquids. What gravity would do, but faster.
- Made of TWO OR MORE TYPES of atoms
- Made up of charged particles of ions and electrons interacting.
- the smallest unit of an element OR a compound.
- Those substances that CANNOT be separated by PHYSICAL means.
- The amount of space an object takes up.
- Separating a liquid from another liquid where both have different boiling points.
- The smallest unit of an element that has the same chemical properties of that element.
- Separating a liquid from a solid that has been dissolved.
- What is being dissolved
- When two or more different substances are physically mixed, but NOT chemically combined.
Down
- Has an indefinite shape AND indefinite volume.
- The mixture does not look uniform… you can see the parts that make up the mixture.
- A measure of the amount of matter an object has.
- When two liquids have different densities you can remove the liquid underneath from the liquid that settled on top.
- Has an indefinite shape AND definite volume.
- What is dissolving the solute.
- The composition is uniform… you cannot see the parts that make up the mixture.
- Separating two solids, one of which is magnetic.
- Has a definite shape AND definite volume.
- Separating smaller solids from liquids using filter paper.
- Made of only ONE TYPE of atom
- Separating larger solids from smaller solids using a sieve.
- Anything with mass and takes up space
25 Clues: What is being dissolved • Made of only ONE TYPE of atom • What is dissolving the solute. • Made of TWO OR MORE TYPES of atoms • Anything with mass and takes up space • The amount of space an object takes up. • Has a definite shape AND definite volume. • Has an indefinite shape AND definite volume. • Has an indefinite shape AND indefinite volume. • ...
Chemistry Matter Review 2022-09-01
Across
- 2+ substances that are physically mixed
- Charged particles of ions and electrons
- Separating cream from milk
- Smallest unit of element w/ same prop.
- Matter with definite shape and volume
- The amount of space an object takes up
- Separating oil and water
- Anything that has mass and take up space
- Separating two solids, one is magnetic
- What's being dissolved
- Coffee beans & water do this for coffee
- Matter with indefinite shape and volume
- Do this to get salt from salt water
- Substance with 2 or more types of atoms
- Mixture looks uniform (can't see parts)
- Homogeneous mixture with two main parts
Down
- The smallest unit of an element/compound
- What's dissolving the solute
- Used to separate beads from flour
- The ink in a marker does this to work
- Mixture doesn't look uniform (see parts)
- Sep. 2 liquids w/different boil points
- Measures the amount of matter of object
- Substance with 1 type of atom
- Has indefinite shape & definite volume
25 Clues: What's being dissolved • Separating oil and water • Separating cream from milk • What's dissolving the solute • Substance with 1 type of atom • Used to separate beads from flour • Do this to get salt from salt water • Matter with definite shape and volume • The ink in a marker does this to work • Smallest unit of element w/ same prop. • The amount of space an object takes up • ...
Chemistry Matter Review 2022-09-01
Across
- 2+ substances that are physically mixed
- Charged particles of ions and electrons
- Separating cream from milk
- Smallest unit of element w/ same prop.
- Matter with definite shape and volume
- The amount of space an object takes up
- Separating oil and water
- Anything that has mass and take up space
- Separating two solids, one is magnetic
- What's being dissolved
- Coffee beans & water do this for coffee
- Matter with indefinite shape and volume
- Do this to get salt from salt water
- Substance with 2 or more types of atoms
- Mixture looks uniform (can't see parts)
- Homogeneous mixture with two main parts
Down
- The smallest unit of an element/compound
- What's dissolving the solute
- Used to separate beads from flour
- The ink in a marker does this to work
- Mixture doesn't look uniform (see parts)
- Sep. 2 liquids w/different boil points
- Measures the amount of matter of object
- Substance with 1 type of atom
- Has indefinite shape & definite volume
25 Clues: What's being dissolved • Separating oil and water • Separating cream from milk • What's dissolving the solute • Substance with 1 type of atom • Used to separate beads from flour • Do this to get salt from salt water • Matter with definite shape and volume • The ink in a marker does this to work • Smallest unit of element w/ same prop. • The amount of space an object takes up • ...
Basic Chemistry Terms 2022-09-12
Across
- A group of elements organized up and down on the periodic table. They react / behave similarly
- This change occurs when a substance changes forms but it is chemically the same thing
- A strong force or attraction between atoms
- The substance being dissolved by the solvent
- Two or more elements bonded together into one substance
- The electrons in the outer shell
- When atoms or molecules are rearranged to form new substances. The result of a chemical change.
- A pure substance that cannot be chemically or physically broken down by any further means
- This is how many protons are in the element
- This is the average of the total protons and neutrons in an element
- The simplest unit of matter that retains chemical properties
Down
- The stuff on the left-hand side of the arrows in a chemical reaction
- The substance in greater amount that is dissolving the solute
- When an element has different number of neutrons but the same number of protons
- This is an element's attraction to electrons (when participating in a covalent bond)
- Two or more atoms bonded together into one
- This type of chemical bond results from a sharing of electrons between two atoms
- The stuff on the right-hand side of the arrows in a chemical reaction
- This change occurs when a substance is transformed into another
- This type of chemical bond results from the attraction of opposite charges (positive and negative)
20 Clues: The electrons in the outer shell • Two or more atoms bonded together into one • A strong force or attraction between atoms • This is how many protons are in the element • The substance being dissolved by the solvent • Two or more elements bonded together into one substance • The simplest unit of matter that retains chemical properties • ...
Chemistry Crossword 1 2022-08-29
Across
- shoes need to be _______-toed
- 0.001 of something
- One milliliter is equally to one centimeter_____
- "It's so hot out! It's over 25 degrees ____"
- what you should do at the end of lab
- in lab, we don't sniff we _____
- CER: _____, evidence, reasoning
- energy phones use
- "kg" means
- what you need to bring for lab
- 1000 of something
- the type of energy we give off when we get hot
- a measure of volume
- When you write down a measurement, you need the number and the ____
Down
- the unit scientists use for energy
- What a scale measures when you stand on it
- one hundredth of something
- feet, inches, and kilometers all measure this
- the energy in food and fuel
- Unit of mass
- a measure of length
- what we measure with a watch and a calendar
- Kelvin, Fahrenheit, and Celsius all measure this
- energy of motion
- eye protection in lab
25 Clues: "kg" means • Unit of mass • energy of motion • energy phones use • 1000 of something • 0.001 of something • a measure of length • a measure of volume • eye protection in lab • one hundredth of something • the energy in food and fuel • shoes need to be _______-toed • what you need to bring for lab • in lab, we don't sniff we _____ • CER: _____, evidence, reasoning • ...
science chemistry matter 2023-09-12
Across
- a combination of different qualities in which the component elements are individually distinct
- to make different
- a substance that takes part in and undergoes change during a reaction.
- a component or constituent of a whole
- extend by inferring unknown values from trends in the known data.
- describe the characteristic of a substance
- a liquid mixture
- characterized by ions
- a stable positive subatomic particle present in the nucleus of every atom.
Down
- a particular kind of matter with uniform properties
- the species formed from chemical reactions
- a rigorous, systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about everything
- an electron of an atom, located in the outermost shell, that can be transferred or shared with other atoms
- the loss of electrons during a reaction by a molecule, atom or ion
- a stable subatomic particle with a negative electrical charge
- a group of atoms bonded together in a specific ratio
- present in the nucleus of every atom with a neutral charge
- the number of electrons associated with an atom or a group of atoms is increased.
- the smallest building block of all matter
- a chemical bond that involves the sharing of electrons
20 Clues: a liquid mixture • to make different • characterized by ions • a component or constituent of a whole • the smallest building block of all matter • the species formed from chemical reactions • describe the characteristic of a substance • a particular kind of matter with uniform properties • a group of atoms bonded together in a specific ratio • ...
Chemistry of Life 2023-09-05
Across
- subatomic particles with a negative charge
- consists of 3 to 100 monomers (sometimes attaches to a protein, glycoprotein)
- the smallest possible "piece" of an element
- a solution with a pH less than 7
- the type of bond that links amino acids to their neighbors
- three long hydrocarbon chains (fat)
- a solution with a pH greater than 7 (basic)
- a pure substance that cannot be broken down by chemical means into other substances
- substances which are polar and readily dissolve in water (sugar, salt)
- nonpolar molecules that do not dissolve in water ("water-fearing")
- the type of fatty acid which contains all the hydrogens it possibly can
- made of monomers that are linked together
- subatomic particle with a neutral charge
- the tendency of water molecules to stick together
- a chain of monomers called amino acids
- formed by protons and neutrons together
- any material that takes up space
Down
- two or more chemically joined atoms
- "two sugars", two monosaccharides joined
- "many sugars" huge molecules of hundreds or thousands of monosaccharide monomers
- one ore more solutes dissolved in a liquid solvent
- the type of atomic bond that results from electrical attraction between two ions with opposite charges
- the ability to move matter (heat, light, chemical bonds)
- different "forms" of the same element
- organic molecule, Carbon, Hydrogen and Oxygen together commonly in the proportion of 1:2:1
- the most likely location for an electron relative to its nucleus
- subatomic particle with a positive charge
- smallest carbohydrate, usually containing five or six C
- weak acids or bases which resist pH changes
- measure of how acidic or basic a solution is
- the type of atomic bond where two atoms share electrons
- the tendency to form hydrogen bonds with substances other than water
- the conversion of a liquid into a vapor
- the type of atomic bond where opposite partial charges on adjacent molecules attract each other (the positive charge is always H)
- three-carbon molecule that forms the main structure of a triglyceride
- a molecule composed of two or more different elements
- a chemical in which other substances dissolve
37 Clues: a solution with a pH less than 7 • any material that takes up space • two or more chemically joined atoms • three long hydrocarbon chains (fat) • different "forms" of the same element • a chain of monomers called amino acids • the conversion of a liquid into a vapor • formed by protons and neutrons together • "two sugars", two monosaccharides joined • ...
Chemistry naming conventions 2023-09-05
Across
- Formula Simplest whole-number ratio
- Outermost electron shell
- Number Charge of an atom in compound
- Without water
- Positively charged ion
- Formula Actual number of atoms in molecule
- Reagent Reactant that runs out first
- Bond Bond between cation and anion
- Formula Shows arrangement of atoms
- Yield Maximum amount of product possible
- Compound with water molecules
Down
- Ion Ion made of multiple atoms
- Reagent Reactant in surplus
- Study of reactant-product ratios
- Yield Amount of product actually obtained
- Bond Bond formed by sharing electrons
- 6.022 x 10^23 units of substance
- Negatively charged ion
- Same atoms, different arrangement
- Same element, different neutrons
20 Clues: Without water • Positively charged ion • Negatively charged ion • Outermost electron shell • Reagent Reactant in surplus • Compound with water molecules • Ion Ion made of multiple atoms • Study of reactant-product ratios • 6.022 x 10^23 units of substance • Same element, different neutrons • Same atoms, different arrangement • Bond Bond between cation and anion • ...
Chemistry Chapter 1 2023-08-24
Across
- A state of matter at extremely high temperatures where electrons are removed (e.g. sun)
- Substance from which something is made, the origin or source
- Elements combined by physical processes and either homogeneous(air, stainless steel) or heterogeneous(granite, blood, lemonade).
- Different kind.
- The knowledge obtained by observing the natural world.
- A state of matter with a definite volume and shape.
- A pure substance that cannot be subdivided without losing its properties or essence.
- Initial substances before a chemical change
- Same kind.
- A branch of science concerned with the composition, structure, and properties of matter, the processes that matter undergo,es and the energy changes associated with those processes.
- A state of matter with neither adefinite volume or shape.
- A change to a substance that does not transform its chemical identity (e.g. cutting, melting, boiling)
Down
- A property which depends upon the amount of matter(e.g. volume and mass)
- Elements combined by chemical processes (water, salt).
- A property which does not depend upon th amount of matter(e.g.. boiling point, density)
- A state of matter with a definite volume.
- A substance that can be subdivided into two or more elements.
- Reactants yield products (similar to an equation equal sign).
- Secondary substances before a chemical change.
- The smallest unit of an element that maintains the chemical identity of the element.
- A change to a substance that transforms its chemical identity(e.g. burning, fission, baking)
21 Clues: Same kind. • Different kind. • A state of matter with a definite volume. • Initial substances before a chemical change • Secondary substances before a chemical change. • A state of matter with a definite volume and shape. • Elements combined by chemical processes (water, salt). • The knowledge obtained by observing the natural world. • ...
Chemistry of Life 2022-10-19
Across
- The carbohydrate found in fruits
- The main energy source of our bodies
- A carbohydrate made up of 3 or more sugar molecules
- this hormone is used to regulate blood sugar, many diabetic people have to get shots of this hormone
- A carbohydrate made up of a single sugar molecule
- The storage form of glucose in animals
- This carbohydrate is used in the fermentation of beer
Down
- This carbohydrate links together using phosphates to form the back bone of DNA, is a monosaccharide
- A carbohydrate made up of 2 sugar molecules
- This carbohydrate links together using phosphates to form the back bone of DNA
- this is the only organ that solely relies on glucose for energy except when fasting
- Disaccharides are broken down into mono saccharides though ___________
- This carbohydrate forms cell walls, cannot be digested by humans, and is commonly referred to as fibre
- Disaccharides are formed by __________ synthesis
- the process that plants use to create glucose and oxygen using only sunlight, water, and carbon dioxide
- The carbohydrate used in cellular respiration
- A portion of the population cannot digest this carbohydrate found in dairy.
- This complex carbohydrate is stored in amyloplasts
- When a glucose molecule bonds with this carbohydrate it forms lactose, and this carbohydrate is said to be involved in brain development
- Table sugar, made from glucose and fructose
20 Clues: The carbohydrate found in fruits • The main energy source of our bodies • The storage form of glucose in animals • A carbohydrate made up of 2 sugar molecules • Table sugar, made from glucose and fructose • The carbohydrate used in cellular respiration • Disaccharides are formed by __________ synthesis • A carbohydrate made up of a single sugar molecule • ...
Mx. Mapel Chemistry 2022-10-12
Across
- How close a measured value is to the accepted value
- The amount of kinetic energy contained in a substance
- in chemistry class you must never eat, drink, or chew _____
- the base units for mass in metric units are _____
- trailing zeros are significant figures if there is a ___________ present
- a common piece of lab equipment used to measure mass
- what is a common abbreviation for significant figures?
- a common piece of lab equipment used to measure temperature
- used to measure length
- a way to measure how wrong a measurement is is expressed in terms of percent _________
Down
- the stuff almost everything is made of
- changing a number in one unit to another by multiplying a series of ratios
- metric base units for volume
- a temperature scale where 0 is the freezing point of water and 100 is the boiling point of water
- during labs you must always wear your safety _____ to protect your eyes
- A measure of how close together measurements are
- sandwiched zeros are _________ significant
- a temperature scale that starts at absolute zero
- The distance from one end to the other
- The amount of matter within a given volume. Hint: (g/mL)
- leading zeros are _________ significant
- a common piece of lab equipment used to measure volume
- metric base units for length
23 Clues: used to measure length • metric base units for volume • metric base units for length • the stuff almost everything is made of • The distance from one end to the other • leading zeros are _________ significant • sandwiched zeros are _________ significant • A measure of how close together measurements are • a temperature scale that starts at absolute zero • ...
Chemistry Crossword Puzzle 2022-12-07
Across
- change-new substance
- change-no new substance is made.
- divided by time
- up and down
- electricity and heat pass through it
- and electricity dont pass
- left to right
- can be bent
- right side of periodic table
- or emit a glow
Down
- not by a outside source
- part of element
- solid
- on the left side of the periodic table
- -is a change
- shatters easily
- be pulled into a wire
- reflects light (shiny)
- shiny
- or steaming
20 Clues: solid • shiny • up and down • or steaming • can be bent • -is a change • left to right • or emit a glow • part of element • shatters easily • divided by time • change-new substance • be pulled into a wire • reflects light (shiny) • not by a outside source • and electricity dont pass • right side of periodic table • change-no new substance is made. • electricity and heat pass through it • ...
chemistry crossword puzzle 2022-06-01
Across
- any of a class of chemical reactions in which an atom or group of atoms is added to a molecule
- the lowest energy state of an atom or other particle
- the transition of a substance directly from the solid phase to the gas phase without passing through the intermediate liquid phase
- a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids
- expresses the amount of a substance present in a mixture
- made up of one or more atoms
- a substance that has a bitter taste and reacts with an acid to form a salt
- a covalent linkage in which two atoms share three pairs of electrons
- something formed by a union of elements or parts
- any substance that cannot be decomposed into simpler substances by ordinary chemical processes
- any atom or group of atoms that bears one or more positive or negative electrical charges
Down
- the quantity of matter contained in an atom of an element
- atom or group of atoms that bears a positive electric charge
- a substance that enters into and is altered in the course of a chemical reaction
- a dynamic state where the concentration of all reactants remains constant
- the mass of one mole of a substance
- a chemical property that describes the tendency of an atom or a functional group to attract electrons toward itself
- stable subatomic particle that has a positive charge equal in magnitude to a unit of electron charge
- elements on the right of the periodic table
- a measure of the average kinetic energy of the atoms or molecules in the system
- any of the five elements fluorine, chlorine, bromine, iodine, and astatine
- the number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus
22 Clues: made up of one or more atoms • the mass of one mole of a substance • elements on the right of the periodic table • something formed by a union of elements or parts • the lowest energy state of an atom or other particle • expresses the amount of a substance present in a mixture • the quantity of matter contained in an atom of an element • ...
Chemistry Crossword Puzzle 2022-06-01
Across
- synthesis always forms solids
- Most reactive nonmetals
- elements tend to be stable with eight valence electrons
- Conduct electricity and heat
- ion with a negative charge e- are gained
- used in a balanced chemical equation
- Columns on the periodic table
- most comment element in the universe
- ion with a positive charge e- are lost
- allows us to change/convert between two units
- atom or molecule that has a charge becasue it has gained or lost electrons
- Rows on the periodic table
- Very reactive
- subatomic particles that have a negative charge
Down
- electrons are shared
- another name for percent yield
- the smallest particle thats made up of matter
- is a unit of concentration for solutions that is frequently used in chemistry
- shows only the substances that undergo a change
- 1/12 the mass of a carbon-12 isotope
- properties of elements repeat as a result of being ordered by atomic number
- an atom with the same number of protons but a different number of neutrons
22 Clues: Very reactive • electrons are shared • Most reactive nonmetals • Rows on the periodic table • Conduct electricity and heat • synthesis always forms solids • Columns on the periodic table • another name for percent yield • used in a balanced chemical equation • 1/12 the mass of a carbon-12 isotope • most comment element in the universe • ion with a positive charge e- are lost • ...
IGCSE Organic chemistry 2022-05-27
Across
- Alkane with 4 carbons
- Alcohol containing 5 carbons
- Hydrocarbon containing 14 hydrogen
- Contains a -COOH functional group
- Hydrocarbon with only single bonds
- Type of bond in hydrocarbons
- Consumed in taverns
- Used to make textiles used in clothing
- Largest product of fractional distilation
- Most common hydrocarbon
- Made in incomplete combustions
Down
- Small repeating unit polymers are made of
- Process combining carboxylic acids and alcohols
- Has a mass number of 12
- Polarisation of Alkenes
- Used as air craft fuel
- Standard formula for alkenes
- Contains 3 carbons and 1 C=C bond
- Unsaturated hydrocarbon (similar to alkanes)
- Has an atomic number of 1
- Process used to make more useful hydrocarbons
- Standard formula for alkanes
22 Clues: Consumed in taverns • Alkane with 4 carbons • Used as air craft fuel • Has a mass number of 12 • Polarisation of Alkenes • Most common hydrocarbon • Has an atomic number of 1 • Alcohol containing 5 carbons • Type of bond in hydrocarbons • Standard formula for alkenes • Standard formula for alkanes • Made in incomplete combustions • Contains a -COOH functional group • ...
Chemistry Vocab Review 2022-05-19
Across
- elements that are poor conductors of heat and electricity; located on right side of periodic table
- a number in front of the chemical formula
- a substance made up of atoms of two or more different elements
- an electrically neutral (uncharged) particle in the nucleus of an atom
- a table of elements, arranged by atomic number, that shows the patterns in their properties
- a positively charged particle in the nucleus of an atom
- substances that are reacting in a chemical reaction; found on the left of a chemical equation
- a type of mixture where different substances are visible
- shells or "rings" around the nucleus of an atom where electrons are found
- a number used to indicate the number of atoms in the formula for a compound
- elements that are good conductors of electricity and heat; located on left side of periodic table
- a pure substance that is made up of only one kind of atom and cannot be broken down
- the smallest component of an element having the same chemical properties of the element
- a change in a substance that does not involve a change in the appearance of the substance
- a unique number for each element that equals the number of protons in an atom of that element
Down
- the elements or compounds produced by a chemical reaction; found on the right of a chemical equation
- a formula that gives the elements in a compound and the ratio (number) of atoms
- a type of mixture that looks the same throughout
- a negatively charged, fast moving particle found outside of the nucleus
- a column going up and down on the periodic table
- elements with properties that fall between those of metals and nonmetals; along the bold staircase
- horizontal (left to right) row on the periodic table
- the ease and speed with which an element combines, or reacts, with other elements and compounds
- a one or two letter representation of an element
- a change in matter that produces one or more new substances
- number of electrons in the outer shell of an atom
- number of protons and neutrons added together
27 Clues: a number in front of the chemical formula • number of protons and neutrons added together • a type of mixture that looks the same throughout • a column going up and down on the periodic table • a one or two letter representation of an element • number of electrons in the outer shell of an atom • horizontal (left to right) row on the periodic table • ...
Yr 9 Chemistry 2022-05-15
Across
- carbon dioxide is made when an acid reacts with a ---------
- acids have a --- pH
- a process in which reactants form products
- the new substances produced in a reaction
- a reaction that absorbs heat
- acids and alkalis reaction to make ---- and water
- a pure substance made of two or more elements bonded in a specific ratio
- a change in ------ is a sign of a chemical reaction
- in exothermic reactions, the mixture gets ------
- a substance made of two or more elements/compounds mixed together
- changes colour to show pH levels
Down
- the name of the reaction between an acid and an alkali
- a gas made when a metal and an acid react
- in endothermic reactions, the mixture gets ------
- a reaction that releases heat
- when a gas is made in a reaction you will see -------
- the smallest particle of any element
- a particle made of two or more atoms chemically bonded together
- a pure substance made of atoms of the same type
- shows reactants, and arrow and products
- the test used for hydrogen gas
- alkalis have a --- pH
- substances with a pH of 7 are -------
- the substances that are used in a reaction
24 Clues: acids have a --- pH • alkalis have a --- pH • a reaction that absorbs heat • a reaction that releases heat • the test used for hydrogen gas • changes colour to show pH levels • the smallest particle of any element • substances with a pH of 7 are ------- • shows reactants, and arrow and products • a gas made when a metal and an acid react • ...
Chemistry Project Crossword 2023-10-01
Across
- An importance use of electrolysis which can be done when the electrodes are not inert.
- Liquid which undergoes electrolysis
- synthetic insulator
- The type of reaction electrolysis is
- A fuel cell used to produce electricity where the only chemical product is water
- The charge of an Anode
- Least reactive metal in reactivity series
- An equation which shows the electron transfer at an electrode.
- Stream of electrons
- Most reactive metal in reactivity series
- Used over the option of steel in power cables' inside
Down
- Loss of electrons in electrolysis
- Solid non-metal which conducts electricity
- Element other than carbon which makes for inert electrodes
- Where reduction occurs
- Gain of electrons in electrolysis
- Carry currents in liquid in electrolysis (plural)
- Carry current through wires and electrodes (plural)
- Common acronym for redox
- The kind of energy given out in a great deal during the burning of hydrogen in oxygen
- Where oxidation occurs
21 Clues: synthetic insulator • Stream of electrons • Where reduction occurs • The charge of an Anode • Where oxidation occurs • Common acronym for redox • Loss of electrons in electrolysis • Gain of electrons in electrolysis • Liquid which undergoes electrolysis • The type of reaction electrolysis is • Most reactive metal in reactivity series • Least reactive metal in reactivity series • ...
Chemistry Vocab Crossword 2023-09-29
Across
- A substance made up of only one type of particle
- Descriptive information
- Something that is of different things
- A substance made by mixing other substances together
- The bonds that hold chemicals together
- How close something is to its goal
- An idea on why something happens
- A property that results in a change with the same structure
- A process that increases heat
- The purest form something can get
- A process that releases heat
- A way of writing big and small numbers
- How consistent something is to itself
- A change that keeps the same structure before and after
- How much heat something can hold
- A change that results in something different
- Statistical information
- Something that is formed from the combination of two or more elements
Down
- The coldest temperature possible
- When an element can have multiple forms
- A mixture that is varied and can be told apart
- A well substantiated explanation of something in the world
- The important digits in a number
- A Curve that shows the properties of something at different temperatures
- Something that is the same thing
- A property that keeps the same structure before and after
- A ____ that exists in the world and is absolute
- How compact a substance is
- A mixture that is uniform and can’t be told apart
- A method that is used to answer questions you might have
30 Clues: Descriptive information • Statistical information • How compact a substance is • A process that releases heat • A process that increases heat • The coldest temperature possible • The important digits in a number • Something that is the same thing • An idea on why something happens • How much heat something can hold • The purest form something can get • ...
Chemistry Unit 2 2023-09-28
Across
- Particle that is positively charged
- The abbreviated word of atomic mass unit
- A particle that has 0 charge
- Crystals that contain water vapor trapped inside their solid structure
- A standard scientific unit for measuring large quantities of very small particles such as atoms or molecules
- The process of heating a crystal that contains water to vaporize and remove the water.
- A particle that consists of a nucleus of protons and neutrons surrounded by electrons
- An element that has a molar mass of 63.55g
- What formula that is a whole number multiple of the empirical formula
- Elements that have an unequal # of protons & neutrons
- Formula that defies the lowest whole number ratio of parts in a compound
- Particle that is found outside the nucleus
Down
- A group of two or more atoms chemically bonded together
- Elements that have the same number of protons, but a different number of neutrons
- The neutron is found within the ____ of an atom
- A Crystal that has water vapor removed from its solid structure
- Element that has an atomic # of 10
- Protons, neutrons, and electrons are all _____ particles
- The compound of H2O is called
- Electrons are _____ charged
- A Crystal that still contains H2O within its structure
21 Clues: Electrons are _____ charged • A particle that has 0 charge • The compound of H2O is called • Element that has an atomic # of 10 • Particle that is positively charged • The abbreviated word of atomic mass unit • An element that has a molar mass of 63.55g • Particle that is found outside the nucleus • The neutron is found within the ____ of an atom • ...
chemistry revision GCSE 2025-03-21
Across
- the smallest part of an element that can exist
- method for finding the neutralising point of bases
- subatomic particle with a positive charge
- the process where a gas turns into a liquid
- the pH of water
- the most common element in wire
- a chemical compound formed by a base and acid reaction
- the process where a liquid gets so much kinetic energy it turns into a gas
- the most common tool to very quickly heat something up
Down
- a material that has a pH of over 7
- a material with a pH less than 7
- burners get fuel via:
- the first element on the periodic table
- the liquid that dissolves a substance
- the material that dissolves in a liquid
- common lab acid
- the element that forms diamonds
- the substance that tells you the pH of a material
- subatomic particle with a neutral charge
- a state of matter; sturdy bonds
20 Clues: common lab acid • the pH of water • burners get fuel via: • the element that forms diamonds • a state of matter; sturdy bonds • the most common element in wire • a material with a pH less than 7 • a material that has a pH of over 7 • the liquid that dissolves a substance • the first element on the periodic table • the material that dissolves in a liquid • ...
Chemistry Review Puzzle 2024-09-18
Across
- the h in tbh
- burning
- a chemical that changes colour at different pH levels
- largest mammal in the world
- number of stars on the New Zealand flag
- a soluble base
- the three different physical forms that substances can exist in, such as solids, liquids, and gases.
- a process that absorbs heat or energy from the surroundings.
- state of matter with a fixed shape and volume, where particles are tightly packed and vibrate in place.
- first letter in the greek alphabet
Down
- safety gear for your face
- uniform mixture formed when a solute dissolves in a solvent.
- substance that dissolves the solute to form a solution.
- the amount of solute dissolved in a given amount of solvent or solution.
- the chemicals that are produced/made in the reaction (on the right hand side of the arrow)
- the measure of hydrogen ions in a substance, determines if something is an acid/base or neutral
- when a solid changes directly into a gas without becoming a liquid first.
- place where all the books live
- substances that have a pH less than 7 and taste sour
- substances that have a pH greater than 7 and taste bitter
- the chemicals you start with in a reaction (on the left hand side of the arrow)
- a process that releases heat or energy into the surroundings.
- when equal amounts of acid and base are added together resulting in a neutral product.
- substance that is dissolved in a solvent to form a solution.
24 Clues: burning • the h in tbh • a soluble base • safety gear for your face • largest mammal in the world • place where all the books live • first letter in the greek alphabet • number of stars on the New Zealand flag • substances that have a pH less than 7 and taste sour • a chemical that changes colour at different pH levels • substance that dissolves the solute to form a solution. • ...
Chemistry of Materials 2024-09-16
Across
- Any representation of a suystem used to help one understand and communicate how it works.
- Two or moreatoms held together by a chemical bond.
- A substance made from more than one element joined by a chemcial bond.
- The stuff that makes up all living things.
- The ratio of the size of a real object and a model, map, diagram, or other representation of the object.
- Compounds made of long chains of smaller repeating molecular subunits called monomers.
- The basic building block of mattter.
- Information that supports or refutes a claim.
- Mass of a substance per unit of volume.
- energy The energy an object has because of its motion.
- Small structures that make up all matter.
- The ability of a substance to dissolve in another substance.
- A state of matter eith no fixed shape.
- energy The total energy of motion of the particles in a sample of a substance, often referred to as a heat in everyday use.
Down
- structure A varied number of one or more kinds of atoms bonded together to form a large network.
- property A property that can be identified, observed, or measuerd and does not rely on testing if the material reacts with another substance.
- property Describes howo a maerial reacts with another substance.
- The flexibility of a material.
- The amount of space that an object or subject occupies.
- A single molecular subunit.
- Particular characteristics of materials.
- A type of solid matter used to make things.
- The simplest pure substances.
- The amount of matter in an object.
- A desirable outcome given up to gain another desirable outcome.
- A state of matter with relatively fixed volume and shape.
- A state of matter with a specific volume but not a specific shape.
- Favoring one thing over another in an unfair way.
- The physcial form of matter - solid, liquid or gas.
29 Clues: A single molecular subunit. • The simplest pure substances. • The flexibility of a material. • The amount of matter in an object. • The basic building block of mattter. • A state of matter eith no fixed shape. • Mass of a substance per unit of volume. • Particular characteristics of materials. • Small structures that make up all matter. • ...
Basic Chemistry Puzzle 2024-09-13
Across
- The energy that is possessed by an object due to its motion or due to its position.
- Atoms combining to form chemical compounds and bring stability to the resulting product.
- molecules that have a dipole or an uneven distribution of charge across their geometry resulting in one side being positive and the other side negative.
- Energy stored in the bonds of chemical compounds.
- Electrically positive protons and electrically neutral neutrons held together by the strongest known fundamental force.
- Subatomic particle that is emitted from the nucleus of an atom during radioactive decay.
- The mutual sharing of one or more pairs of electrons between two atoms.
- The starting materials in a reaction that undergo a chemical change to form a product.
- A mixture in which very small particles of one substance are distributed evenly throughout another substance.
- A substance that is being dissolved.
- Positively charged ions.
- A unit of measurement that is the amount of a pure substance containing the same number of chemical units.
- The tendency of an atom to donate electrons and form positively charged cations.
- A state of matter with particles closely packed.
- A gaseous, liquid or solid mixture that has the same proportions of its components throughout a given sample.
- A set of quantum states of the negatively charged electrons trapped in the electrical field generated by the positively charged nucleus.
- The movement of electrically charged particles.
- The ability to do work.
- The bond formed by the complete transfer of valence electron to attain stability.
- the positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass.
- Energy that travels in waves and spans a broad spectrum from very long radio waves to very short gamma rays.
- The tendency of an atom to attract electrons in a molecule.
- The number of particles in 1 mole (or mol) of a substance.
- A type of heterogeneous mixture where solid particles do not dissolve in a liquid solution.
- Molecules that do not have any electrical charges or partial charges.
Down
- A combination of two or more pure substances in which each pure substance retains its individual chemical properties.
- The outermost shell of any atom.
- Subatomic particle with a negative charge.
- A state of matter which takes the shape of its container.
- The number of protons in a nucleus.
- Atoms with the same number of protons but different numbers of neutrons.
- Composite particles consisting of two protons and two neutrons tightly bound together.
- Anything that has mass and takes up space
- The smallest particle of a substance that has all of the physical and chemical properties of that substance.
- The sum of the weights of the individual atoms that make up the molecule.
- A state of matter in which the particles are far apart, fast-moving and not organised in any particular way.
- A homogeneous mixture of one or more solutes dissolved in a solvent.
- The total number of protons and neutrons in an atom.
- An unstable form of a chemical element that releases radiation as it breaks down and becomes more stable.
- A unit of concentration expressed as the number of moles of dissolved solute per liter of solution.
- Subatomic particles with a positive electrical charge.
- A substance made from two or more different elements that have been chemically joined.
- The total weight of an atom.
- Regions surrounding the atomic nucleus containing a specific number of electrons.
- states that atoms are most stable when their outermost shell is filled with 8 electrons.
- The smallest part of a substance that cannot be broken down chemically.
- Subatomic particle with a neutral charge.
- A form of electromagnetic radiation similar to X-rays emitted from an excited nucleus.
- Negatively charged ions.
- A chemical substance that cannot be broken down into other substances by chemical reactions.
- Any substance, usually liquid, which is capable of dissolving one or several substances, thus creating a solution.
51 Clues: The ability to do work. • Positively charged ions. • Negatively charged ions. • The total weight of an atom. • The outermost shell of any atom. • The number of protons in a nucleus. • A substance that is being dissolved. • Anything that has mass and takes up space • Subatomic particle with a neutral charge. • Subatomic particle with a negative charge. • ...
Basic Chemistry Puzzle 2024-09-13
Across
- The energy that is possessed by an object due to its motion or due to its position.
- Atoms combining to form chemical compounds and bring stability to the resulting product.
- molecules that have a dipole or an uneven distribution of charge across their geometry resulting in one side being positive and the other side negative.
- Energy stored in the bonds of chemical compounds.
- Electrically positive protons and electrically neutral neutrons held together by the strongest known fundamental force.
- Subatomic particle that is emitted from the nucleus of an atom during radioactive decay.
- The mutual sharing of one or more pairs of electrons between two atoms.
- The starting materials in a reaction that undergo a chemical change to form a product.
- A mixture in which very small particles of one substance are distributed evenly throughout another substance.
- A substance that is being dissolved.
- Positively charged ions.
- A unit of measurement that is the amount of a pure substance containing the same number of chemical units.
- The tendency of an atom to donate electrons and form positively charged cations.
- A state of matter with particles closely packed.
- A gaseous, liquid or solid mixture that has the same proportions of its components throughout a given sample.
- A set of quantum states of the negatively charged electrons trapped in the electrical field generated by the positively charged nucleus.
- The movement of electrically charged particles.
- The ability to do work.
- The bond formed by the complete transfer of valence electron to attain stability.
- the positively charged central core of an atom, consisting of protons and neutrons and containing nearly all its mass.
- Energy that travels in waves and spans a broad spectrum from very long radio waves to very short gamma rays.
- The tendency of an atom to attract electrons in a molecule.
- The number of particles in 1 mole (or mol) of a substance.
- A type of heterogeneous mixture where solid particles do not dissolve in a liquid solution.
- Molecules that do not have any electrical charges or partial charges.
Down
- A combination of two or more pure substances in which each pure substance retains its individual chemical properties.
- The outermost shell of any atom.
- Subatomic particle with a negative charge.
- A state of matter which takes the shape of its container.
- The number of protons in a nucleus.
- Atoms with the same number of protons but different numbers of neutrons.
- Composite particles consisting of two protons and two neutrons tightly bound together.
- Anything that has mass and takes up space
- The smallest particle of a substance that has all of the physical and chemical properties of that substance.
- The sum of the weights of the individual atoms that make up the molecule.
- A state of matter in which the particles are far apart, fast-moving and not organised in any particular way.
- A homogeneous mixture of one or more solutes dissolved in a solvent.
- The total number of protons and neutrons in an atom.
- An unstable form of a chemical element that releases radiation as it breaks down and becomes more stable.
- A unit of concentration expressed as the number of moles of dissolved solute per liter of solution.
- Subatomic particles with a positive electrical charge.
- A substance made from two or more different elements that have been chemically joined.
- The total weight of an atom.
- Regions surrounding the atomic nucleus containing a specific number of electrons.
- states that atoms are most stable when their outermost shell is filled with 8 electrons.
- The smallest part of a substance that cannot be broken down chemically.
- Subatomic particle with a neutral charge.
- A form of electromagnetic radiation similar to X-rays emitted from an excited nucleus.
- Negatively charged ions.
- A chemical substance that cannot be broken down into other substances by chemical reactions.
- Any substance, usually liquid, which is capable of dissolving one or several substances, thus creating a solution.
51 Clues: The ability to do work. • Positively charged ions. • Negatively charged ions. • The total weight of an atom. • The outermost shell of any atom. • The number of protons in a nucleus. • A substance that is being dissolved. • Anything that has mass and takes up space • Subatomic particle with a neutral charge. • Subatomic particle with a negative charge. • ...
Chemistry comes alive 2024-09-12
Across
- chemical reaction where a compound breaks down unto simpler substances(36)
- ability of antibodies to block sites on bacteria(40)
- reactant molecules change partners(36)
- dissolve in fats but not water(43)
- region around nucleus(26)
- acts as an electrolyte(39)
- smallest unit resulting from the chemical bonding of two or more atoms(28)
- the dissolving medium(29)
- ability to remove a proton from weak acid(41)
- common waste product of protein breakdown(40)
- large molecules made by bonding(42)
- specific degree of hotness or coldness in the body(37)
- gives off hydrogen ions in water and form salt(39)
- substance that enhances the action of an enzyme(52)
- gives the total number of atoms in each element(36)
- shell outermost energy level(31)
- ability to do work(24)
- basic building block of nucleic acid(53)
- substance being dissolved(29)
- the unit is amino acid(47)
- changes the rate of chemical reaction leaving permanent change(38)
Down
- lipoids and protein-based substances that transport fatty acid(46)
- amount of substance in a mixture(37)
- no net electric charge(42)
- study of biology and application of chemistry(38)
- one or more solutes in solvent(29)
- chemical change that involves transfer of electrons or oxygen among atoms(36)
- isotopes that are unstable(28)
- hydrophilic head, glycerol molecule, two hydrophobic fatty acid tail(47)
- acquires a net – charge(32)
- two poles of charge(34)
- large particle size (lotions, muddy water)(30)
- does not fully dissociate into ion solutions(41)
- acquires a net + charge(32)
- when + and – charge is lost(32)
- 2 or more different kinds of atoms that binds(28)
- acid largest molecule in the body which has two major classes, RNA and DNA(53)
- surface on which an organism grows(52)
- helps maintain the pH of a solution(41)
- most abundant compound in the body(38)
- bond when atom share electrons(32)
- anything that takes up space(24)
- 2 or more structural variations(27)
- composed of 2 or more components physically intermixed(29)
- proton donor in water(39)
- bond transfer from one atom to the next(32)
- element with the symbol O(26)
- equal to atomic weight(29)
- composed of more or less identical particles(25)
- dispersed or suspended particles(30)
50 Clues: ability to do work(24) • two poles of charge(34) • region around nucleus(26) • the dissolving medium(29) • proton donor in water(39) • no net electric charge(42) • acts as an electrolyte(39) • equal to atomic weight(29) • the unit is amino acid(47) • acquires a net – charge(32) • acquires a net + charge(32) • element with the symbol O(26) • substance being dissolved(29) • ...
Chemistry comes alive 2024-09-13
Across
- Energy directly involved in moving matter(pg24)
- Heterogenous mixtures also called emulsions (pg30)
- capacity or ability to do work or put matter into motion (pg24)
- Energy in action (pg24)
- The key to chemical reactivity (pg31)
- Energy that results from movement of charges particles. (pg24)
- Net positive charge (pg32)
- Modified triglycerides. (pg47)
- Component of protein and nucleic acids (genetic material)(pg26)
- Identical particles or building blocks (pg25)
- Polymers of simple sugars linked together by dehydration synthesis (pg43)
- Happens when acids and bases are mixed (pg40)
- Substance on which enzymes acts (pg52)
- Energy that travels in waves. (pg24)
- Substances composed of 2 or more components physically intermixed (pg29)
- Energy absorbing reaction containing more potential energy in their chemical bonds than did the reactions (pg37)
- Net negative charge. (pg32)
- State of matter that has definite volume, but conform to the shape of its container
- Compact, spherical protein that have at least tertiary structure (pg50)
- Double sugar (pg43)
- Resist abrupt and large swings in the pH of the body fluids by releasing hydrogen ions when pH begins to rise and by binding hydrogen when pH drops (pg41)
- Heavy unstable isotopes (pg28)
- Reaction that releases energy (pg 37)
- Structural basis for manufacture of all body steroids (pg46)
- Group of molecules that includes sugars and starches. (pg43)
- Component of all organic molecules, As an ion (proton). It influences the pH of the body fluids. (pg26)
- Homogenous mixtures of components that may be solids, liquids or gases (pg 29)
- Take up hydrogen ions in detectable amounts (pg39)
- Neutral fats (pg46)
Down
- Biological catalysts (pg38)
- Layers formed by water molecules (pg38)
- type of energy stored in the bonds of chemical substances (pg24)
- Substances that increase the rate of chemical reaction without themselves becoming chemically changed o part of the product (pg38)
- Formed when 2 or more molecules are combined.
- Stored/ inactive energy that has capability to do work. (pg24)
- Heterogenous mixtures with large, often viable solutes that tend to settle out pg30
- Simple sugars (pg43)
- Fatty acid that contains on or more double bonds between carbon atoms (pg46)
- Element need to make functional thyroid hormones.
- Protein that is extended and strand-like (pg50)
- Insoluble in water but readily dissolve in organic solvents (pg43)
- Unique substances that cannot be broken down into simpler substances by ordinary chemical methods (pg25)
- anything that occupies space and has mass (pg24)
- Substance that releases hydrogen ions in detectable amounts (pg39)
- The study of chemical composition and reactions of living matter (pg38)
- Most abundant and important organic compound in living cells (pg38)
- Lipid and protein- based substances that transport fatty acid and cholesterol in the blood stream (pg46)
- Chainlike molecules made of many similar or repeating units (pg42)
- Flat molecules made of 4 interlocking hydrocarbon rings (pg47)
- Component of proteins, particularly muscle proteins.
- Reaction that occurs when molecule is broken down into smaller molecules or its constituent atoms (pg36)
51 Clues: Double sugar (pg43) • Neutral fats (pg46) • Simple sugars (pg43) • Energy in action (pg24) • Net positive charge (pg32) • Biological catalysts (pg38) • Net negative charge. (pg32) • Modified triglycerides. (pg47) • Heavy unstable isotopes (pg28) • Energy that travels in waves. (pg24) • The key to chemical reactivity (pg31) • Reaction that releases energy (pg 37) • ...
Chemistry U3 Vocab 2024-09-17
Across
- double bond
- hardness
- heat absorbed when a liquid vaporizes
- dissociate
- molecular polarity
- covalent network
- amount of energy added to a molecule of solid at constant pressure to turn it directly into a gas
- lone pairs
- alloy
- crystallattices
- coulombic attraction
- temporary dipole
- dipole
- pressure vapor pressure
- triple bond
- bonding site
- latticeenergy
- covalent bond
- interparticle forces
- dipole arrow
- ionize
- electron domain
- partial charge
Down
- the point when material changes from solid to liquid
- octet rule
- symmetric
- luster
- temperature when liquid is converted into vapour
- conductivity thermal conductivity
- vsepr
- polarity bond polarity
- malleability
- polar
- ionic bond
- ductility
- asymmetric
- sigma bond
- pi bonds
- induced dipole
- polarizable
- lewis structure
- intermolecular forces
- conductivity electrical conductivity
- molecular geometry
- polar nonpolar
- single bond
- polarity
47 Clues: vsepr • polar • alloy • luster • dipole • ionize • hardness • pi bonds • polarity • symmetric • ductility • octet rule • dissociate • ionic bond • lone pairs • asymmetric • sigma bond • double bond • polarizable • triple bond • single bond • malleability • bonding site • dipole arrow • latticeenergy • covalent bond • induced dipole • polar nonpolar • partial charge • crystallattices • lewis structure • electron domain • covalent network • ...
Chapter 2 Chemistry 2025-01-31
Across
- #1 energy source for cells
- Strongest chemical bond (plural)
- Pure form of matter
- An atom's ability to attract electrons in a bond
- Number of protons
- The capacity to do work
- Middle chemical bond (plural)
- Same element, different number of neutrons
- Surround nucleas and has negative charge
- stored energy in electrons
Down
- Positive charge
- Building blocks of nucleic acids
- A liquid that dissolves other substances
- energy in motion
- Weakest chemical bond (plural)
- Composed of protiens (plural)
- Building block of living things
- Attractive forces holding atoms together
- Anything that has mass and occupies space
- Neutral charge
- Number of proton & neutrons
- Unstable isotopes
22 Clues: Neutral charge • Positive charge • energy in motion • Number of protons • Unstable isotopes • Pure form of matter • The capacity to do work • #1 energy source for cells • stored energy in electrons • Number of proton & neutrons • Composed of protiens (plural) • Middle chemical bond (plural) • Weakest chemical bond (plural) • Building block of living things • ...
Chemistry Crossword Puzzle 2025-03-25
Across
- the person who discovered the proton
- an atom with a positive charge
- tells how large an element is
- a word that means a compound is dissolved in water
- this person said that atoms combine in whole number ratios
- involves a transfer of electrons
- anions are formed by electrons being___
- elements in group 2
- an atom with a negative charge
- atoms will gain or lose enough electrons to become isoelectronic with a noble gas
- involves a sharing of electrons
Down
- the person who gave the atom its name
- indicates the smallest whole number ratio of positive to negative ions within an ionic compound
- atomic mass is an average of the elements___
- the elements in group 17
- electrons are shared equally between two atoms
- bonds where the electron are shared unequally between atoms
- electrons are arranged in this around the nucleus
- a way to show the number of valence electrons in an atom
- the electrons in an atom's outermost shell is called___
20 Clues: elements in group 2 • the elements in group 17 • tells how large an element is • an atom with a positive charge • an atom with a negative charge • involves a sharing of electrons • involves a transfer of electrons • the person who discovered the proton • the person who gave the atom its name • anions are formed by electrons being___ • ...
Organic Chemistry Fun! 2025-02-10
Across
- it is the chemical blueprint for our cells and is the genetic code of life
- it is found in table sugar, candy, and many tasty Valentine's day treats!
- is the chemical that gives blueberries their color
- it is a simple 6 ringed sugar made by plants during photosynthesis
- it is the chemical that gives lemons their sour flavor
- is the chemical pigment in leaves that makes them colorful!
- it is the chemical that makes people cry when cutting onions
- it is the energy molecule made by the mitochondria in our cells
- it is the chemical in coffee that is a stimulant and also found in chocolate and soda
- it is the chemical found in plant fertilizer and also urine
- is the chemical found in fuel used for barbeques
- it is the chemical made in cow farts!
Down
- it is the chemical that makes bacon taste so good!
- it is the chemical found in nail polish remover
- it is the chemical that makes soap so foamy & found in shampoo
- it is the chemical in our cotton clothes, soft yet strong and made by plants
- it is the chemical that makes chili peppers so spicy
- it is a chemical that makes aches and fevers go away
- they are the chemicals in milk, eggs, and meat to make our muscles stronger
- it is the chemical that gives carrots their color and found in pumpkins & many fruits
20 Clues: it is the chemical made in cow farts! • it is the chemical found in nail polish remover • is the chemical found in fuel used for barbeques • it is the chemical that makes bacon taste so good! • is the chemical that gives blueberries their color • it is the chemical that makes chili peppers so spicy • it is a chemical that makes aches and fevers go away • ...
Chemistry Comes Alive 2024-09-13
Across
- Number, Number of protons in an atom.
- Bonds, Formed when electrons are transferred between atoms.
- Composed of linked monosaccharides.
- Compounds, Lack carbon.
- Bonds, Formed when atoms share electrons.
- Negatively charged ion.
- Produces hydroxide ions (OH⁻) in water.
- Substances formed by a chemical reaction.
- Positively charged ion.
- A substance that can't be broken down chemically.
- The force gravity exerts on an object.
- Weight, Average mass of all isotopes of an element.
- Energy (PE), Energy due to an object's position.
- Strong intermolecular attraction between particles.
- Positively charged particle in the nucleus.
- Repeating unit of a polymer.
- Insoluble in water, dissolve in lipids/organic solvents.
- Atomic mass minus atomic number.
- Takes the shape of its container.
- Energy, Travels in waves.
- The study of matter and its changes.
- Two or more atoms held by chemical forces.
- Starting materials in a chemical reaction.
- Basic unit of nucleic acids.
- Universal energy compound of cells.
Down
- Produces hydrogen ions (H⁺) in water.
- The amount of matter in an object.
- Substance with two or more elements chemically bonded in fixed proportions.
- Region around the nucleus where electrons are likely found.
- Combination of substances retaining their identities.
- Compounds, Contain carbon.
- Inorganic compound making up 60-80% of cell volume.
- Unstable isotopes that decay spontaneously.
- Ionic compound without H⁺ or hydroxyl ions.
- The basic unit of an element.
- Negatively charged particle equal in magnitude to the proton's charge.
- Number, Total number of protons and neutrons in an atom.
- Mixture with non-uniform composition.
- Rays, High-energy radiation.
- Energy (KE), Energy of a moving object.
- Written above the normal line.
- The capacity to do work.
- Biological catalyst that speeds up reactions by lowering activation energy.
- Single-stranded nucleic acid.
- The substance in larger quantity in a solution.
- Has no definite shape or volume.
- Mixture with uniform composition.
- The substance in smaller quantity in a solution.
- Atoms with the same atomic number but different mass numbers.
- Dense core of an atom.
50 Clues: Dense core of an atom. • Compounds, Lack carbon. • Negatively charged ion. • Positively charged ion. • The capacity to do work. • Energy, Travels in waves. • Compounds, Contain carbon. • Rays, High-energy radiation. • Repeating unit of a polymer. • Basic unit of nucleic acids. • The basic unit of an element. • Single-stranded nucleic acid. • Written above the normal line. • ...
Chemistry Comes Alive 2024-09-13
Across
- Number, Total number of protons and neutrons in an atom.
- Unstable isotopes that decay spontaneously.
- Negatively charged particle equal in magnitude to the proton's charge.
- The capacity to do work.
- Universal energy compound of cells.
- Bonds, Formed when electrons are transferred between atoms.
- Energy (PE), Energy due to an object's position.
- Has no definite shape or volume.
- Mixture with non-uniform composition.
- Ionic compound without H⁺ or hydroxyl ions.
- The substance in larger quantity in a solution.
- Substance with two or more elements chemically bonded in fixed proportions.
- Combination of substances retaining their identities.
- Produces hydrogen ions (H⁺) in water.
- The substance in smaller quantity in a solution.
- Starting materials in a chemical reaction.
- Number, Number of protons in an atom.
- The amount of matter in an object.
- Composed of linked monosaccharides.
- Positively charged ion.
- Weight, Average mass of all isotopes of an element.
- Basic unit of nucleic acids.
- Strong intermolecular attraction between particles.
- Insoluble in water, dissolve in lipids/organic solvents.
Down
- Biological catalyst that speeds up reactions by lowering activation energy.
- Repeating unit of a polymer.
- Written above the normal line.
- Atomic mass minus atomic number.
- Energy (KE), Energy of a moving object.
- Region around the nucleus where electrons are likely found.
- Inorganic compound making up 60-80% of cell volume.
- Dense core of an atom.
- Bonds, Formed when atoms share electrons.
- Atoms with the same atomic number but different mass numbers.
- The study of matter and its changes.
- Positively charged particle in the nucleus.
- Produces hydroxide ions (OH⁻) in water.
- Single-stranded nucleic acid.
- Negatively charged ion.
- The force gravity exerts on an object.
- Substances formed by a chemical reaction.
- Energy, Travels in waves.
- Rays, High-energy radiation.
- Compounds, Lack carbon.
- A substance that can't be broken down chemically.
- Compounds, Contain carbon.
- Two or more atoms held by chemical forces.
- Takes the shape of its container.
- The basic unit of an element.
49 Clues: Dense core of an atom. • Negatively charged ion. • Compounds, Lack carbon. • Positively charged ion. • The capacity to do work. • Energy, Travels in waves. • Compounds, Contain carbon. • Repeating unit of a polymer. • Rays, High-energy radiation. • Basic unit of nucleic acids. • Single-stranded nucleic acid. • The basic unit of an element. • Written above the normal line. • ...
Chemistry Comes Alive 2024-09-11
Across
- a chemical bond between atoms formed by the transfer of one or more electrons from one atom to the other is (pg.32)
- sum of the atomic weights of the elements or compound (pg.29)
- structural units of nucleic acids (pg. 53)
- – the center of an atom containing protons and neutrons (pg.25)
- the storage carbohydrate formed by plants (pg.43)
- The substance on which an enzyme act (pg.52)
- The time required for a radioisotope to lose one-half of its activity (pg.28)
- – the process of atomic decay (pg. 28)
- a translucent mixture of tiny particles dispersed in another medium (pg.30)
- the storage carbohydrate of animal tissues (pg.43)
- combination of two or more atoms held together by a chemical bond (pg. 28)
- the type of reaction when energy is released (pg.37)
- - large arrays of cations and anions held together by ionic bonds(pg.32)
- a group of molecules that contain sugars and starches. (pg. 43)
- the substance present on the greatest amount in a mixture (pg. 29)
- -Radioactive isotopes of an element is called a (pg.28)
- the process when atoms or molecules form a larger, more complex molecule (pg.36)
- proteins that act as biological catalysts (pg.51)
- this type of energy is stored in the bonds of chemical substances (pg.24)
- - proton acceptors that takes up hydrogen ions in detectable amounts.(pg. 39)
- – energy in motion (pg. 24)
- a substance that releases hydrogen ions in detectable amounts. (pg.39)
- regions around the nucleus in which a given electron or electron pair is likely to be found. (pg.26)
- the products of energy-absorbing in a reaction (pg.37)
Down
- - the study of the chemical composition and reactions of living matter (pg.38)
- a substance that increases the rate of reaction and unchanged at the end
- a single chain structure containing 3-7 carbon atoms. (pg.43)
- - polymers of simple sugars linked together by dehydration synthesis (pg.43)
- homogeneous mixtures of components that may be gases, liquids, or solids(pg.29)
- The tendency of an atom in a molecule to attract the shared pair of electrons towards itself. (pg.34)
- bond that involves the sharing of electrons to form electron pairs between atoms (pg.32)
- type of energy directly involved in moving matter (pg.24)
- - chainlike molecules made monomers, joined together by dehydration synthesis (pg.42)
- - a common waste product of protein breakdown in the body (pg.40)
- chemical systems that regulate homeostasis of acid base balance. (pg.41)
- – the type of energy that results from the movement of charged particles. (pg.24)
- with the same number of protons but differing numbers of neutrons.(pg.27)
- – anything that occupies space and has a mass. (pg. 24)
- substances that conduct an electrical current in solution (pg. 39)
- an electrically neutral chemical compound of cations and anions. (pg. 39)
- modified triglycerides. (pg.47)
- when two or more atoms of the same element are chemically bind together, they form a_____ (pg.28)
- when two monosaccharides are joined by dehydration synthesis (pg.43)
- Substance composed of two or more component physically intermixed (pg. 29)
- stored energy (pg. 24)
- - an atom’s outermost energy level (pg.31)
- heterogenous mixtures with large visible solutes that tend to mix out (pg.30)
- substances that cannot be broken down into simpler substances by ordinary chemical methods. (pg.25)
- the substance present in the smallest amount in a mixture (pg.29)
- – the ability to put matter into motion. (pg. 24)
50 Clues: stored energy (pg. 24) • – energy in motion (pg. 24) • modified triglycerides. (pg.47) • – the process of atomic decay (pg. 28) • structural units of nucleic acids (pg. 53) • - an atom’s outermost energy level (pg.31) • The substance on which an enzyme act (pg.52) • the storage carbohydrate formed by plants (pg.43) • proteins that act as biological catalysts (pg.51) • ...
Year 13 Chemistry! 2025-04-11
Across
- Process where alkenes react with hydrogen
- Name given to an electron pair donor in complex formation
- Compound made by reacting an acid with an alcohol
- A reaction that involves an atom or group being replaced
- Type of bond formed when electrons are shared unequally
- The part of a molecule responsible for its reactions
- Organic product of refluxing a primary alcohol with acidified potassium dichromate
- Intermediate with a positive charge on carbon
Down
- pH of a neutral solution at 25°C
- The voltage measured when a half-cell is connected to the standard hydrogen electrode under standard conditions.
- Catalyst used in the Haber process
- Common oxidising agent containing Cr₂O₇²⁻
- Common base used in organic elimination reactions
- Gas produced when ammonia reacts with chlorine
- Structure formed when d orbitals split in transition metals
- Name for the energy needed to start a reaction
- This is used as the reference in NMR spectroscopy
- Main spectroscopic technique for identifying functional groups
- Isomerism where functional groups are in different positions
- This type of reaction involves gain of electrons
20 Clues: pH of a neutral solution at 25°C • Catalyst used in the Haber process • Common oxidising agent containing Cr₂O₇²⁻ • Process where alkenes react with hydrogen • Intermediate with a positive charge on carbon • Gas produced when ammonia reacts with chlorine • Name for the energy needed to start a reaction • This type of reaction involves gain of electrons • ...
Chemistry Project Crossword 2025-04-14
Across
- a statement you can test by doing an experiment and taking measurements
- A charged atom or group of atoms formed by the gain or loss of one or more electrons
- They can be easily drawn out into wires
- a starting chemical for a reaction
- Process where liquid changes into gas
- a particle with a charge of 1+ and a mass of 1 unit
- Made of atoms of different elements or compounds that are not bonded together
- a substance containing only one atom
- A process in which a soluble substance forms a solution
- an insoluble chemical produced during a chemical reaction
- Something that contains different elements or compounds that are not bonded together
- A particle with no charge and a mass of one unit found in the nucleus of an atom
- atoms of the same element, that have different numbers of neutrons
- the amount of solute that will dissolve in 100 grams of a solvent
- process where liquid changes into solid
Down
- the process of breaking down a compound by passing a current through it
- Indicates whether something is an acid or an alkali
- a particle with no charge and a mass of one unit found in the nucleus of an atom
- gives out heat energy
- a mixture where atleast one other substance is added to a metal
- The physical change in which a gas turns into liquid on cooling
- process where solid turns to liquid
- takes in heat energy from the surrounding
- a compound formed between oxygen and other element
- A mixture obtained when a solute is dissolved in a solvent
- A unit of two or more atoms held together by covalent bonds
- Breaks up easily when struck
- The smallest particles, that we cannot break down further in chemical reaction
- Shells that are arranged around the nucleus
- Can be bent or hammered into shape
- A chemical made in a chemical reaction
31 Clues: gives out heat energy • Breaks up easily when struck • a starting chemical for a reaction • Can be bent or hammered into shape • process where solid turns to liquid • a substance containing only one atom • Process where liquid changes into gas • A chemical made in a chemical reaction • They can be easily drawn out into wires • process where liquid changes into solid • ...
11SCX Chemistry Crossword 2024-11-26
Across
- Relating to carbon-based compounds, especially in living things
- Mass of one mole of a substance
- Byproduct of combustion
- Amount of space occupied by a substance
- Starting part of a chemical name
- Alchohol found in beverages and used as a fuel
- Molar ratio of oxygen to water in the complete combustion of butanol
- Element found in all organic compounds
- Reaction where atoms or groups are removed to form a double bond
- The amount of matter in an object
- Shows actual number of atoms in a molecule
- Large molecule made of repeating units
- Formula showing the backbone of a molecule
- Added to name of compound with chlorine in it
- 6.02x10^23
- Hydrocarbon in gasoline
- Shows how atoms are arranged in a molecule
- Used in titrations
- c(NaOH)=1.60mol/L, V(NaOH)=15mL, V(H2SO4)=20mL, c(H2SO4)=?
- Reation type where atoms or groups are added to a molecule
- m(CH4)=8g, V(CH4)=100mL, c(CH4)=?
- Byproduct of combustion
- Used to transfer specific volumes of liquids
- Process of reducing concentration by adding solvent
Down
- Byproduct of combustion
- Another name for molar ratios
- Type of greenhouse gas
- Fuel sourced from natural gas
- Unit for amount of substance in chemistry
- Has general formula CnH2n+2O
- Number of particles in a given volume
- Ending for alkenes
- Caused by greenhouse gases
- Has general formula CnH2n+2X
- Shows simplest whole-number ratio of atoms
- Element found in all organic compounds
- Unit companies use for concentration
- Results that agree with each other
- Reaction where one atom or group replaces another
- Has general formula CnH2n+2
- Process of burning a substance in oxygen
- Has general formula CnH2n
- Technique for finding unknown concentration by reaction
- Reactant needed for combustion
- Molar ratio of pentane to carbondixode in the complete combustion of pentane
- Ending part of a chemical name
- Compounds with the same formula but different structures
47 Clues: 6.02x10^23 • Ending for alkenes • Used in titrations • Type of greenhouse gas • Byproduct of combustion • Byproduct of combustion • Hydrocarbon in gasoline • Byproduct of combustion • Has general formula CnH2n • Caused by greenhouse gases • Has general formula CnH2n+2 • Has general formula CnH2n+2O • Has general formula CnH2n+2X • Another name for molar ratios • ...
Chapter 5 - Chemistry 2024-11-06
Across
- substance consisting of one type of atom
- fatty acids, oils, waxes
- a force that holds atoms in a molecule together
- amount of enery to start a chemical reaction
- force of attraction between hydrogen atoms
- biological catalyst such as a protein
- molecules that help increase the rate of a chemical reaction
- chemical molecule where the charge is distributed unevenly, has an electrical charge
- consists of a sugar, phophate and a nitrogen base
- type of chemical bond where electrons are transferred between atoms
- complex carb that consists of highly branched chains of glucose
- organic compounds where sugar is an example
- uniform mixture of a solute completely dissolved in a solvent
- a molecule that is made up of many monomers
Down
- a molecule that is a subunit of a larger molecule
- simple sugar that works as a monomer
- substance that accepts hydrogen ions
- nucleic acid that carries heredity information
- an atom that has a different number of protons and electrons
- chemical molecule where the charge is distributed evenly, no charge
- small organic compound that is the building blocks of proteins
- storage of sugar for plants
- substance that releases hydrogen ions
- type of chemical bond where electrons are shared
- an element that has the same number of protons but a different number of neutrons
- complex carbohydrate that is sugar storage
26 Clues: fatty acids, oils, waxes • storage of sugar for plants • simple sugar that works as a monomer • substance that accepts hydrogen ions • biological catalyst such as a protein • substance that releases hydrogen ions • substance consisting of one type of atom • force of attraction between hydrogen atoms • complex carbohydrate that is sugar storage • ...
CHEMISTRY CROSSWORD PUZZLE 2024-11-14
Across
- Are biological catalysts that speed up chemical reactions in living organisms by lowering the activation energy required for the reactions to occur.
- The membrane-enclosed organelle within a cell that contains the chromosomes
- Molecules that do not have any electrical charges or partial charges.
- Is a complex carbohydrate and the main structural component of plant cell walls, providing rigidity and support.
- Complex macromolecules have an important role in genetic information storage, transmission, and expression.
- A fatty waxy or oily substance that is soluble in organic solvents but insoluble in polar solvents like water.
- Is a molecule that is present in the majority of living organisms and viruses.
- Are a group of lipids that include hormones like testosterone and estrogen, characterized by a four-ring carbon structure, and are involved in various biological functions such as regulating metabolism, immune response, and reproduction.
- Organic compound used to store energy.
- Anything that has mass and occupies spaces.
Down
- Is a molecule that carries genetic information for the development and functioning of an organism.
- Is a molecules that combine to form proteins.
- Are a type of lipid molecule that form the structural components of cell membranes, with a hydrophilic (water-attracting) head and hydrophobic (water-repelling) tails.
- A storage polysaccharide made up of D-glucopyranose residues linked by 1-4 glycosidic linkages, which branch via 1-6 glycosidic bonds.
- The smallest basic unit of life, which is responsible for all of life's processes
- A subatomic particle with a positive electrical charge.
- Are a type of fat molecule that contains one or more double bonds between carbon atoms, which causes them to be liquid at room temperature and are typically found in plant oils, nuts, and fish.
- A molecule made up of amino acids.
- A structure having an uneven distribution of electron density.
- The fluid that flows through a vertebrate animal's heart, arteries, capillaries, and veins transports nutrients and oxygen to every area of the body while also removing waste.
20 Clues: A molecule made up of amino acids. • Organic compound used to store energy. • Anything that has mass and occupies spaces. • Is a molecules that combine to form proteins. • A subatomic particle with a positive electrical charge. • A structure having an uneven distribution of electron density. • Molecules that do not have any electrical charges or partial charges. • ...
Chemistry Glossary Terms 2024-11-14
Across
- When a gas becomes a .solid
- The state of matter where particles slide past each other
- All matter is made up of these.
- When something gets smaller
- Movement of particles from areas of high concentration to low concentration.
- When a liquid becomes a solid.
- How much of something there is.
- The state of matter where particles
- The state where a liquid bubbles and starts to evaporate
- A substance that is not a solid, liquid or gas.
Down
- Anything that takes up space.
- The mass of an object compared to its volume.
- When a solid becomes a gas.
- When a gas becomes a liquid.
- When a solid becomes a liquid.
- When a liquid becomes a gas.
- Can something be squished or changed shape
- The state of matter that can be compressed
- Stays the same shape/size
- When something gets bigger.
20 Clues: Stays the same shape/size • When a gas becomes a .solid • When a solid becomes a gas. • When something gets smaller • When something gets bigger. • When a gas becomes a liquid. • When a liquid becomes a gas. • Anything that takes up space. • When a solid becomes a liquid. • When a liquid becomes a solid. • All matter is made up of these. • How much of something there is. • ...
Chemistry Paper 1 2025-04-29
Across
- The actual ratio of atoms of each element present in a compound.
- Particles with a diameter between 1 nm to 100 nm in size
- A giant covalent structure which is made up of carbon atoms each of which form three covalent bonds with three other carbon atoms, forming layers of hexagonal rings which have no covalent bonds between the layers
- A chemical reaction in which a more reactive element displaces a less reactive element from its compound
- Mrs Floyd’s first job was working in this supermarket
- Elements that react to form positive ions
- The bonds present between the positive metal ions and negatively charged electrons.
- Positively charged object composed of protons and neutrons at the centre of every atom with one or more electrons orbiting it
- Negatively charged subatomic particle which orbit the nucleus at various energy levels
- The smallest part of an element that can exist
- number The total number of protons and neutrons in the nucleus.
- The smallest whole number ratio of atoms of each element in a compound.
- The sport Mrs Floyd coaches
- Compound formed of ions, held together by strong electrostatic forces.
- The strong forces of attraction between oppositely charged ions.
- Molecules of carbon atoms with hollow shapes.
- An average value that takes account of the abundance of the isotopes of the element.
Down
- The part of a polymer whose repetition would produce the complete polymer chain.
- The forces which exist between molecules
- The university Mrs Floyd attended
- Atoms of the same element with the same number of protons but a different number of neutrons
- A shared pair of electrons between two non-metals
- A separation technique used to separate solids from liquids
- The number of protons in the nucleus
- The elements in Group 0 of the periodic table
- A separation technique used to produce solid crystals from a solution by evaporating the solvent.
- Atomic model devised after the discovery of the electron. The model suggests the atom is a ball of positive charge with negative electrons scattered through it.
- The elements in Group 1 of the periodic table
- The elements in Group 7 of the periodic table
- A material which contains charged particles which are free to move to carry electrical or thermal energy
- A giant covalent structure which is made up of carbon atoms each of which form four covalent bonds with four other carbon atoms
- Large long-chain molecules made up of lots of small monomers joined together by covalent bonds.
32 Clues: The sport Mrs Floyd coaches • The university Mrs Floyd attended • The number of protons in the nucleus • The forces which exist between molecules • Elements that react to form positive ions • The elements in Group 0 of the periodic table • The elements in Group 1 of the periodic table • The elements in Group 7 of the periodic table • ...
Chemistry Crossword Puzzle 2025-04-27
Across
- Prefix for 1000
- Hydrogen and a nonmetal element
- Composed of two different nonmetals
- A negatively charged ion
- Composed of only one type of atom or molecule
- Tentative explanation for observations
- Science that seeks to understand how matter behaves by studying the behavior of atoms and molecules
- Atoms or molecules arranged in geometric patterns
- The basic particles of elements
- Phase change from gas to solid
Down
- More than one atom
- value of y when x=0
- State of matter with indefinite shape and definite volume
- ____= mass/volume
- Explains what will happen
- Explains why something happens
- A positively charged ion
- Prefix for 7 in binary molecular compounds
- Phase change from liquid to solid
- Cannot be created or destroyed
20 Clues: Prefix for 1000 • ____= mass/volume • More than one atom • value of y when x=0 • A negatively charged ion • A positively charged ion • Explains what will happen • Explains why something happens • Cannot be created or destroyed • Phase change from gas to solid • Hydrogen and a nonmetal element • The basic particles of elements • Phase change from liquid to solid • ...
7D Finn Chemistry 2024-11-04
Across
- Define volume indef
- Gas to liquid
- The ability of one substance to dissolve in another
- 2 or more substances not chemically combined
- Definite shape and volume
- E Most energy
- A song by targis soctt
- A pure substance
- Liquid to gas
- Made with 2 hydrogen and 1 oxygen
- A mixture of 2 or more substances that stays evenly mixed
- Solid to gas
- has no(neutral) charge
- Maximum amount of neutrons on 2nd and 3rd shell
- an invented long word said to mean a lung disease caused by inhaling very fine ash and sand dust.
- Number 14 of the periodic table
Down
- The atomic number is equal to the amount of .. in a element
- The element with the letter K
- Gas to solid
- A technique used to separate an insoluble solid from a liquid mixture using a filter paper
- Solid to liquid
- a substance that dissolves into another Substance
- a mixture where 2 substances that’s blended together and cannot be told apart
- a solution that contains more solute than it would normally due to a given temperature
- has a positive charge
- Pouring from one container to another
- Smallest particle, makes up everything
- separation technique that turns liquid into gas
- the 4th State if matter
- Made with 2 or more elements joined chemically
- Has a negative charge
- Liquid to solid
32 Clues: Gas to solid • Solid to gas • Gas to liquid • Liquid to gas • Solid to liquid • Liquid to solid • A pure substance • Define volume indef • E Most energy • has a positive charge • Has a negative charge • A song by targis soctt • has no(neutral) charge • the 4th State if matter • Definite shape and volume • The element with the letter K • Number 14 of the periodic table • ...
CHEMISTRY CRISS-CROSS 2025-05-22
Across
- energy is the maximum amount of work obtainable from a system at constant temperature and pressure.
- is the spectroscopic technique for determining molecular vibrations.
- is the disorder or randomness in a system.
- is the metal ion at the active site of carbonic anhydrase.
- is a multistep process used to amplify a specific DNA segment.
- is a non-protein molecule essential for enzyme activity, often a metal or vitamin.
- is a cyclic compound with alternating single and double bonds that follows Huckel’s rule.
- is the molecular orbital formed by head-on overlap.
- is a ligand that binds through two donor atoms to a metal center.
- is a chiral compound with a non-superimposable mirror image.
- is the G-protein subunit that binds GTP.
- are a class of compounds containing amino and carboxyl groups.
- is the ion responsible for depolarization in nerve signaling.
- inhibition is a type where Vmax remains unchanged.
- is the process of protein unfolding and loss of function.
- is the pH at which a molecule carries no net charge.
- is the mechanism of ATP synthesis in mitochondria.
- are a family of enzymes that transfer phosphate groups from ATP to substrates.
- is an analytical method using a reference and sample cell to compare absorbance.
Down
- is a DNA-binding domain motif often found in transcription factors.
- is the quantum number that determines the shape of an orbital.
- is a post-translational modification involving sugar addition.
- is the green chemistry principle involving the use of renewable raw materials.
- is a common technique to separate proteins based on size and charge.
- is the enzyme involved in signal termination by breaking down cAMP.
- is an ion or molecule that donates a pair of electrons to a metal.
- is the vitamin required for collagen synthesis.
- is the photosynthetic pigment found in cyanobacteria and plants.
- is the metal center in Vitamin B12.
- is an electrophilic substitution reaction common in aromatic rings.
- is the spectroscopy method used to study nuclear spin states.
- is the common reaction mechanism for tertiary alkyl halides.
- is the aromatic amino acid precursor of serotonin.
- describes a reaction that produces no waste or side products.
- is the spectroscopic method used to determine electronic transitions in conjugated systems.
- transcriptase is the enzyme that synthesizes DNA from RNA in retroviruses.
- is the biochemical process disrupted in cyanide poisoning.
37 Clues: is the metal center in Vitamin B12. • is the G-protein subunit that binds GTP. • is the disorder or randomness in a system. • is the vitamin required for collagen synthesis. • is the aromatic amino acid precursor of serotonin. • inhibition is a type where Vmax remains unchanged. • is the mechanism of ATP synthesis in mitochondria. • ...
Chemistry 13 Solutions 2025-05-19
Across
- a solution that holds the maximum amount of solute under the conditions
- major component in solution
- the number of grams of solute per 100 grams of solution
- dissolved particles are ions; conducts electricity
- amount of compound(grams) that dissolves in a certain amount of liquid
- pressure required to stop the osmotic flow
- uneven sharing of electrons in a covalent bond
- a solution that holds more than the normal maximum amount of solute
- homogeneous mixture of two or more substances
Down
- a membrane that allows some substances to pass through but not others
- contain a solid, liquid, or gas, and water
- dissolved particles are molecules, cannot conduct electricity
- common way to purify a solid
- the flow of solvent from less concentrated solution to a more concentrated solution
- one containing large amounts of solute relative to solvent
- concentrated solutions used in store rooms to save space
- a solution holding less than the maximum amount of solute
- number of moles of solute per liter of solution
- one containing small amounts of solute relative to solvent
- minor component in solution
20 Clues: major component in solution • minor component in solution • common way to purify a solid • contain a solid, liquid, or gas, and water • pressure required to stop the osmotic flow • homogeneous mixture of two or more substances • uneven sharing of electrons in a covalent bond • number of moles of solute per liter of solution • ...
Crossword for Chemistry 2025-07-31
Across
- contains two or more elements
- state of matter that has no shape
- mixture consists of two or more phases
- compounds that contain carbon
- change in the extrinsic properties of a substance without changing its chemical composition
- formed by the combination of any positive ions except hydrogen and any negative ion except hydroxide ion
- change in the intrinsic properties and constitution of the substance
- heterogeneous mixture of two or more substances
Down
- substances composed of two or more elements or compounds which are not chemically combined
- mixture consists of only one phase
- consist of oxygen and one other element
- contain hydrogen which is replaceable by a metal
- contain a metal with hydroxyl group
- compounds which usually are found in minerals
- the molecules are suspended in a medium
- only for low density ionized gases
- simplest form of a substance that cannot be decomposed by simple chemical means, contains only one kind of atom
- homogeneous mixture of two or more substances
- state of matter that has no shape and no volume
- state of matter that has shape, volume, mass
20 Clues: contains two or more elements • compounds that contain carbon • state of matter that has no shape • mixture consists of only one phase • only for low density ionized gases • contain a metal with hydroxyl group • mixture consists of two or more phases • consist of oxygen and one other element • the molecules are suspended in a medium • ...
CHEMISTRY Crossword Puzzle 2025-07-21
Across
- Change in form, not in composition
- Homogeneous mixture of two or more substances
- Substance that produces OH- ions in water
- Type of matter with a fixed composition and distinct properties
- Property that doesn't depend on amount
- Carbon-based substances in living things
- Solid changes directly to gas
- Process where liquid turns into vapor
- Method used to separate solids from liquids
Down
- Elements with both metal and nonmetal characteristics
- Mixture with a uniform composition
- Mixture with particles that don't settle
- Combination of two or more substances, not chemically joined
- Mixture with large particles that settle over time
- Property that depends on the amount of matter
- Change that forms a new substance
- Mixture with visibly different parts
- Separation by boiling point difference
- Mass per unit volume of a substance
- Bond formed by transferring electrons
20 Clues: Solid changes directly to gas • Change that forms a new substance • Mixture with a uniform composition • Change in form, not in composition • Mass per unit volume of a substance • Mixture with visibly different parts • Bond formed by transferring electrons • Process where liquid turns into vapor • Property that doesn't depend on amount • ...
CHEMISTRY WORD SEARCH 2025-07-21
Across
- A negatively charged particle that moves around the nucleus.
- The process in which a single ligand forms multiple bonds with a central metal ion.
- Visible, hot gas from burning substances.
- A combination of two or more substances that do not chemically combine.
- A slow chemical reaction between iron, water, and oxygen.
- A mixture of two or more metals, or a metal and a non-metal.
- A fixed circular path in Bohr’s model where electrons revolve around the nucleus.
- The mixing of atomic orbitals to form new orbitals for bonding.
- The smallest unit of matter that retains the properties of an element.
- Regions in an atom where there is a high probability of finding electrons.
- "Makes up most of the air we breathe, but we can't use it directly."
- Atom or molecule with an electric charge.
Down
- A chemical reaction in which a substance burns in oxygen to release heat.
- A bond formed by sharing of electrons.
- A reaction involving both oxidation and reduction."
- Unequal sharing of electrons in a molecule causes this type of charge separation.
- The amount of space an object or substance occupies.
- A neutral particle found in the nucleus of an atom.
- The chemical decomposition of a substance by passing electric current through it.
- A chemical change producing new substances.
- A compound formed from an acid and a base.
- Measure of the amount of matter.
- A substance with a sour taste and pH less than 7; turns blue litmus red.
- The existence of an element in more than one physical form in the same state (like diamond )
24 Clues: Measure of the amount of matter. • A bond formed by sharing of electrons. • Visible, hot gas from burning substances. • Atom or molecule with an electric charge. • A compound formed from an acid and a base. • A chemical change producing new substances. • A reaction involving both oxidation and reduction." • A neutral particle found in the nucleus of an atom. • ...
Chemistry Vocab Crossword 2025-08-13
Across
- the ability of a substance to dissolve in a solvent to form a solution
- a solution where a large amount of solute is dissolved in a given amount of solvent or solution
- two or more liquids that readily mix and dissolve into each other, forming a homogeneous solution
- a measure of how much mass is contained within a given volume
- a homogeneous mixture where one or more substances are dissolved in another substance
- a solution that contains more dissolved solute than its normal solubility limit at a given temperature and pressure
- the amount of a substance that reacts with, or is equivalent to, a fixed amount of another substance in a specific chemical reaction
- a solution with a low concentration of solute
- calculated by taking the measured uncertainty divided by the measurement times 100
- the amount of a substance present in a given volume of a mixture or solution
- one where the amount of solute dissolved is less than the maximum amount that can be dissolved in the solvent at a given temperature
- a characteristic of a substance that does not depend on the amount of the substance present
- a problem-solving technique used to convert between different units of measurement
Down
- requires a power source to measure
- a graphical representation of how the solubility of a substance changes with temperature
- a substance that dissolves in a solvent to form a solution
- a solution that contains the maximum amount of solute that can be dissolved in a given solvent at a specific temperature and pressure
- the process where a solute, either a gas, liquid, or solid, dissolves in a solvent to form a solution
- a substance or mixture that has a uniform composition throughout
- a solution where water acts as a solvent
- doesn’t require a power source to measure
- a substance that dissolves a solute, resulting in a solution
- the boundary or surface where two different phases of matter meet
- the curved upper surface of a liquid in a container
- a ratio derived from an equality between two different units that allows for the conversion of a measurement from one unit to another
- liquids that do not mix or dissolve in each other to form a homogeneous solution
26 Clues: requires a power source to measure • a solution where water acts as a solvent • doesn’t require a power source to measure • a solution with a low concentration of solute • the curved upper surface of a liquid in a container • a substance that dissolves in a solvent to form a solution • a substance that dissolves a solute, resulting in a solution • ...
Chemistry Lab Equipment 2025-08-13
Across
- Concave piece of glass used to heat chemicals or cover a beaker
- Small glassware used to show a chemical reaction
- Used to move hot beakers
- Holds liquids and has a wide mouth; comes in many sizes
- Safety glasses for your eyes
- Used to hold liquids that need swirling without spilling; has a narrow neck
- Used to hold multiple test tubes upright
- Attached to the ring stand to support the wire gauze
- Used to hold filter paper during filtering
- Used to measure the mass of substances
- Used to clean the inside of beakers
- Used to support lab equipment above the Bunsen burner
Down
- Used to heat substances on the ring stand
- Measures volume of liquids very precisely; tall and narrow
- Used to pick up a narrow neck flask
- Used to hold a test tube when heating or carrying
- Heat resistant container for evaporating liquids
- Measures the acidity or alkalinity of a solution
- Used to measure or transfer small amounts of liquid
- Used to measure temperature
- Used to transfer solids from one container to another
- Used to mix things together
- Metal mesh placed on a ring stand to support glassware during heating
23 Clues: Used to move hot beakers • Used to measure temperature • Used to mix things together • Safety glasses for your eyes • Used to pick up a narrow neck flask • Used to clean the inside of beakers • Used to measure the mass of substances • Used to hold multiple test tubes upright • Used to heat substances on the ring stand • Used to hold filter paper during filtering • ...
MATTER IN CHEMISTRY 2025-01-06
Across
- Anything that occupies space.
- An example of filtration.
- Anything that has mass and occupies space.
- Separation based on size.
- A property that can be observed without changing the chemical make-up of the substance.
- Matter that has the same properties or characteristics.
- A property that depends on the size of the sample.
- A mixture that has the same uniform composition throughout.
Down
- Made up of two or more different elements chemically combined.
- A mixture with a different composition, visibly different parts.
- Separation based on size and charge(polarity).
- Elements combined in definite proportions.
- Something used to identify unknown substances.
- A property that does not depend on size.
- A property that describes a permanent change.
- A substance that can't be broken down by a chemical change.
- A set of characteristics by which a substance is recognized.
- We measure matter by finding the ____ because ____ is always constant.
- consists of two or more substances.
- Separation based on boiling points.
20 Clues: An example of filtration. • Separation based on size. • Anything that occupies space. • consists of two or more substances. • Separation based on boiling points. • A property that does not depend on size. • Elements combined in definite proportions. • Anything that has mass and occupies space. • A property that describes a permanent change. • ...
YEAR 9 Chemistry 2025-08-29
Across
- – A reaction that absorbs energy from the surroundings.
- Variable – The factor you measure.
- – A reaction between an acid and a base to form salt and water.
- – A measure of how hot or cold something is.
- Rate – How fast a reaction happens.
- – pH = 7; neither acidic nor basic.
- – When reactions happen at equal rates in both directions (balanced).
- – A scale from 0–14 showing how acidic or basic a solution is.
- – Plant pigment (e.g. red cabbage juice) used as a natural pH indicator.
- – A substance with pH < 7, produces hydrogen ions (H⁺).
- Variables – Factors you keep the same to make the test fair.
Down
- – The ability of an indicator to show small changes in pH.
- – A glass tube with a tap (stopcock) used to measure volumes of liquid accurately in titrations.
- – A substance that changes colour in acids and bases (e.g. litmus, phenolphthalein, flavin/red cabbage).
- – A base that dissolves in water.
- Equation – A way of showing a chemical reaction using words (e.g. acid + metal → salt + hydrogen).
- – When substances interact and change into new substances.
- – How quickly/easily a substance reacts.
- – A substance that reacts with acids, often produces hydroxide ions (OH⁻).
- – The ability to do work or cause change.
- – A reaction that releases energy, usually as heat or light.
- – An element that is usually shiny, conducts heat/electricity, and reacts with acids.
- Variable – The factor you change in an experiment.
- – A small tap used to control liquid flow in a burette.
- – A tool used to measure and transfer small, precise amounts of liquid.
25 Clues: – A base that dissolves in water. • Variable – The factor you measure. • Rate – How fast a reaction happens. • – pH = 7; neither acidic nor basic. • – How quickly/easily a substance reacts. • – The ability to do work or cause change. • – A measure of how hot or cold something is. • Variable – The factor you change in an experiment. • ...
Chemistry of Life 2025-08-28
Across
- Monomer of nucleic acid (DNA, RNA)
- Stored energy
- Made up of amino acids
- Bond formed by the transfer of electrons
- Monomer of protein
- With fatty acids, makes a lipid
- Negatively charged subatomic particle
- With glycerol, makes a lipid
- Composed of fatty acids and glycerol
Down
- Monomers are joined by removal of water
- Bonds involving the sharing of electrons
- Uncharged subatomic particle
- Mono, di and polysaccharide
- Bonds that do not form new molecules
- Energy of motion
- Any substance that has mass and occupies space
- Polymer of nucleotides
- Monomer of carbohydrate
- Positively charged subatomic particle
- Smallest particle into which a substance can be divided and still retain its chemical properties
- Electrons & protons in this type of atom are not equal
21 Clues: Stored energy • Energy of motion • Monomer of protein • Polymer of nucleotides • Made up of amino acids • Monomer of carbohydrate • Mono, di and polysaccharide • Uncharged subatomic particle • With glycerol, makes a lipid • With fatty acids, makes a lipid • Monomer of nucleic acid (DNA, RNA) • Bonds that do not form new molecules • Composed of fatty acids and glycerol • ...
Year 9 Chemistry 2025-09-09
Across
- Likely to give off nuclear radiation
- Shows pH by a colour change
- Particles inside an atom
- Random motion caused by tiny particles
- Neutral particle in the nucleus
- Substance with different atoms in it
- Version of an atom with a certain mass
- How to find out whether hydrogen is present
- Radiation consisting of 2 protons and 2 neutrons
- Groups 3-12 on the Periodic Table
- Chemicals coming out
- Column indicating number of valence electrons
- Being sour
- When a property remains the same
- Charged atom
- Negative ion containing hydrogen and oxygen
- Acid or base that always produces ions
- Likely to undergo decay
- Opposite of acidity
- Positive particle in the nucleus
- Central part of an atom
- Has a pH > 7
- Acid or base that sometimes produces ions
- Tends to accept electrons
- Can be bent
- Level where electrons can be
- Negative particle outside the nucleus
- Used to test for carbon dioxide
- Takes in heat
- Summary of the substances in a reaction
- Zone where electrons may occur
- Chemicals going in
- Measure of how acidic something is
- The time taken for 50% to decay
- Property that responds to electric fields
- Reaction where substance does not change
- A type of nuclear decay that is an electromagnetic ray
Down
- How much radiation knocks electrons off atoms
- Heat needed for a reaction to begin
- How much radiation travels through materials
- Organised display of elements
- Arrangement of electrons
- Has a pH < 7
- Allows flow of electricity
- Chemical formed in a neutralisation reaction
- Allows energy only to leave
- No movement of matter or energy from the system
- Allows matter to leave
- Smallest particle of an element
- Reaction between acid and base
- Chemical with a defined makeup of atoms
- Radiation that can be an electron or positron
- May behave like a metal and a nonmetal
- Connection between atoms
- Solid coming out of a liquid
- Neither positive nor negative
- Different arrangement of an element
- Mixture used to measure pH in a rainbow
- The number of atoms is the same on both sides
- Atoms bonded together in a package
- Substance with one kind of atom
- Row indicating number of shells
- Gives off heat
- Does not undergo decay
- Tends to give electrons
- Reaction where substances change
66 Clues: Being sour • Can be bent • Has a pH < 7 • Charged atom • Has a pH > 7 • Takes in heat • Gives off heat • Chemicals going in • Opposite of acidity • Chemicals coming out • Allows matter to leave • Does not undergo decay • Likely to undergo decay • Central part of an atom • Tends to give electrons • Particles inside an atom • Arrangement of electrons • Connection between atoms • ...
Chemistry lab equipment 2025-09-10
Across
- holding a test tube in place when tube is hot or should not be touched
- scraping,transfer or apply powder and paste like chemicals
- squirt water to clean laboratory glassware and other equipment
- measuring temperature
- mixing, storing, and heating liquids
- measuring mass or weight
- pouring liquids or fine grained substances into container with a small opening
- grasping hot lab glass or ceramic dishes
- measure volume of irregular objects
- hold test tubes so they dont roll away, tip over, or break
- heating, sterilization, and combustion
- frame thats holds glass or ceramic equipment above a bunsen burner
- protect hands while picking up hot objects
- holding thermometor in place during an experiment
Down
- cleaning test tubes, graduated cylinders, and erlen meyer flask
- heating and stirring substances
- perform reactions with a very small volume of chemicals
- weighing substances that will be transferred to another vessel
- measuring volume of liquids
- crush and grind materials into a fine paste or powder
- sealing openings of test tubes, flask,and laboratory glassware
- measuring and transfer small volumes of liquid
- holds or clamps laboratory glassware and other equipment in place
- prevents particulates, water, or chemicals from striking eyes
- holding,mixing,and heating small volume of chemical experiments
- stirring or mixing liquids
- grasping small objects
- placed on an iron ring or tripod to support glassware
- contais chemicals when heating them to very high temperatures
- evaporate liquid, heating small ammount of substance or cover a beaker
- mixing,storing, and heating liquids
- transfer powders and solids from one vessel to another
- supporting objects above a work surface or bunsen burner
33 Clues: measuring temperature • grasping small objects • measuring mass or weight • stirring or mixing liquids • measuring volume of liquids • heating and stirring substances • measure volume of irregular objects • mixing,storing, and heating liquids • mixing, storing, and heating liquids • heating, sterilization, and combustion • grasping hot lab glass or ceramic dishes • ...
ADVANCED CHEMISTRY 9 2026-02-26
Across
- Describes the properties of an electron in an atom.
- International system for naming chemical compounds.
- Related to carbon-containing compounds.
- Hydrocarbons that contain at least one C≡C triple bond.
- Negatively charged subatomic particle.
- Organic compound formed from an acid and an alcohol.
- Organic compound containing the –COOH group.
- Region where electrons are found around the nucleus.
- Saturated hydrocarbon arranged in a ring.
- Carbon chains that form closed rings.
- Organic compound that contains the –OH functional group.
- Hydrocarbons that contain at least one C=C double bond.
- Neutral particle found in the nucleus.
- Shows the actual number of atoms in a molecule.
- Bond formed by transfer of electrons.
- Compound made only of carbon and hydrogen.
Down
- Bond formed by sharing of electrons.
- The simplest alkane (CH₄).
- Ability of atoms to bond with themselves.
- Alkane with four carbon atoms.
- Electron found in the outermost shell of an atom.
- Cyclic compounds that are not aromatic.
- Organic compounds with a carbonyl group inside the chain.
- Organic compound with an oxygen linking two carbon chains.
- Compound mainly made of carbon bonded to other elements.
- Force that holds atoms together in a compound.
- Organic compounds with a terminal carbonyl group (–CHO).
- Saturated hydrocarbons with only single bonds.
- Atoms tend to have eight electrons in their outer shell.
- Atom or group that replaces hydrogen in a chain.
- Aromatic hydrocarbon with a ring structure.
- Organic compounds that are not aromatic.
- Having unequal sharing of electrons.
- Group obtained from an alkane by removing one hydrogen.
- Positively charged particle found in the nucleus.
35 Clues: The simplest alkane (CH₄). • Alkane with four carbon atoms. • Bond formed by sharing of electrons. • Having unequal sharing of electrons. • Carbon chains that form closed rings. • Bond formed by transfer of electrons. • Negatively charged subatomic particle. • Neutral particle found in the nucleus. • Cyclic compounds that are not aromatic. • ...
Chemistry Paper 2 2025-10-01
Across
- Test used to compare sustainability of products
- A factor that increases the rate of reaction without being used up
- Gas that turns limewater cloudy
- A reaction that gives out heat
- Test for chlorine gas – turns damp litmus this colour
- Increasing this factor means more particles in a given volume
- Substance made from small molecules joining together
- Process of breaking long-chain hydrocarbons into shorter, useful ones
- Desalination removes this from seawater
- Flame test colour for sodium ions
- Monomers with double bonds used to make addition polymers
- Name for gases that trap heat in atmosphere
- Gas linked to acid rain
- Metal that is low density and resists corrosion
- Main gas in Earth’s atmosphere
- Gas produced by incomplete combustion
- General formula for alkanes
- What shifts the position of equilibrium when conditions change
Down
- Hydrocarbon containing a double bond
- The minimum energy particles need to react
- White precipitate formed with calcium ions and sodium hydroxide
- Gas increasing in atmosphere due to fossil fuel combustion
- Hydrocarbon containing only single bonds
- Term for long-term changes in global weather patterns
- Method used to separate coloured dyes in ink
- Flame test colour for copper ions
- Human activity increasing methane in atmosphere: _______ farming
- Reusing and processing waste materials
- Alloy made of iron and carbon
- Method of sterilising water using gas
- What factor increases by reducing particle size
- Flame test colour for potassium ions
- Second most abundant gas in Earth’s atmosphere
- Reversible reactions reach this state when forward and backward reactions balance
- Increasing this increases the average energy of particles
- Reaction where alkenes react with bromine water, decolourising it
- Test for hydrogen gas – produces this sound
- Alcohols react with oxygen to form water and this gas
- Gas needed in the Haber Process with nitrogen to make ammonia
- Natural material used to make glass
40 Clues: Gas linked to acid rain • General formula for alkanes • Alloy made of iron and carbon • A reaction that gives out heat • Main gas in Earth’s atmosphere • Gas that turns limewater cloudy • Flame test colour for copper ions • Flame test colour for sodium ions • Natural material used to make glass • Hydrocarbon containing a double bond • Flame test colour for potassium ions • ...
Chemistry Group 17 2025-09-30
Across
- The state of the halogens at room temperature
- The color of the radioactive element found in group 17
- The product formed when halogens react with metals
- The atomic radius of halogens going down the group
- The most electronegative element found in group 17
- The use of chlorine to wash away stains on clothings
- Where an element is both oxidized and reduced
- The classification of the elements in the group
- What the halide ionic radii becomes, going down the group
- The number of valence electron in the group
Down
- The only halogen that is liquid in room temperature
- Type of chemical reaction where a more reactive halogen replaces a less reactive one
- Is the name of group 17 elements
- Iodine is used in this solution to heal wounds
- The property that can wear away or damage materials
- Refers to how easily a substance could evaporate
- The primary bonding that halogens formed
- The least electronegative element found in group 17
- Trend where reactivity decreases as you move from fluorine to iodine
- A radioactive element found in group 17
20 Clues: Is the name of group 17 elements • A radioactive element found in group 17 • The primary bonding that halogens formed • The number of valence electron in the group • The state of the halogens at room temperature • Where an element is both oxidized and reduced • Iodine is used in this solution to heal wounds • The classification of the elements in the group • ...
Chemistry Grade 10 2025-10-02
Across
- acid Acid found in vinegar
- test Test used to detect acids and bases
- A uniform mixture of two or more substances
- Final answer
- reaction Change that produces new substances
- energy Energy stored in chemical bonds
- Color of universal indicator in neutral solution
- Gas humans breathe in that plants release
- Process where a solid changes directly to gas
- Smallest unit of matter
- dioxide Gas that makes fizzy drinks bubble
- Gas used in balloons because it’s lighter than air
Down
- Process that separates liquids by boiling points
- Substance that speeds up a reaction but isn’t used up
- Scientist who created the periodic table
- Two or more atoms bonded together
- Opposite of an acid
- Element with the chemical symbol Na
- Element symbol S stands for this
- Metal that is liquid at room temperature
- Metal that rusts easily when exposed to air and water
- cylinder Tool used to measure liquid volume accurately
22 Clues: Final answer • Opposite of an acid • Smallest unit of matter • acid Acid found in vinegar • Element symbol S stands for this • Two or more atoms bonded together • Element with the chemical symbol Na • energy Energy stored in chemical bonds • Scientist who created the periodic table • Metal that is liquid at room temperature • Gas humans breathe in that plants release • ...
Highschool Chemistry Test 2025-10-31
Across
- Table ordering all the known elements
- Discovered the electron
- Discovered that electrons orbit around the nucleus
- Elements with a different number of neutrons
- Groups 1,2 and 13-18
- Electrons on the outermost energy shell
- Average mass of an atom including all its isotopes
- Neutrally charged particle
- The Columns in the periodic table based off of number of electron shells
- Number of electron shells
Down
- Arrangement of Electrons in an atom
- The rows in the periodic table based on how many valence electrons something has
- How well something conducts electricity/temperature
- Elements like Lanthanum
- Made the modern periodic table
- Number of protons in an atom
- Positively charged particle
- Hard but prone to shattering/breaking
- An atomic model is based off of this food
- Negatively charged particle
- a solid material which is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity
- THE BEST SCIENCE TEACHER!!!
- Who discovered the nucleus
- Elements like Actinium
- The basic unit of an element
25 Clues: Groups 1,2 and 13-18 • Elements like Actinium • Elements like Lanthanum • Discovered the electron • Number of electron shells • Who discovered the nucleus • Neutrally charged particle • Positively charged particle • Negatively charged particle • THE BEST SCIENCE TEACHER!!! • Number of protons in an atom • The basic unit of an element • Made the modern periodic table • ...
Chemistry #2 Puzzle 2025-10-17
Across
- charge of the neutron
- the independent variable is the item that ______
- items ____ dense than one will float in water
- bond between metal and nonmetal
- bond where electrons are shared
- substance made of two or more substances that are physically combined
- elements to the right of the stairstep
- mass number=protons + __________
- elements on the stairstep
- the simplest substance made of one type of atom
- density=____/volume
- items to the right of the arrow in a chemical equation
- items with a pH from 7.1-14
- unit for solid volume
- unit for liquid volume
- what a row is called on the periodic table
- a description of an item (ex: paper is white and flammable)
- items to the left of the arrow in a chemical equation
Down
- elements to the left of the stairstep
- a rusting car is a ______ change
- atoms with a charge (either positive or negative)
- substance made of two or more elements that are chemically combined
- unit for mass
- constants are items that stay the ____
- which part of the atom determines the element
- the fourth state of matter, which is a charged gas
- charge of the proton
- the fourth state of matter
- part of the atom outside of the nucleus
- atoms of the same element, but with a different number of neutrons
- ____ electrons that are on the outside shell of an atom
- charge of the electron
- density of water (spell out number)
- measure of the amount of matter in a given space
- items with a pH from 0-6.9 are considered _____
- what a column is called on the periodic table
36 Clues: unit for mass • density=____/volume • charge of the proton • charge of the neutron • unit for solid volume • charge of the electron • unit for liquid volume • elements on the stairstep • the fourth state of matter • items with a pH from 7.1-14 • bond between metal and nonmetal • bond where electrons are shared • a rusting car is a ______ change • mass number=protons + __________ • ...
Chemistry Choice Board 2025-10-10
Across
- a visual method to show how electrons are distributed within an atom's orbitals, using boxes for orbitals and arrows for electrons to represent their spin and energy level.
- Atom or group of atoms with a negative charge.
- A shorthand method of representing atoms and valence electrons.
- The rule stating electrons fill a sublevel by 1 electron occupying each orbital before a 2nd electron can occupy any orbital.
- A measure of the angular moment of an electron in an orbital.
- A charged atom or group of atoms due to gain or loss of electrons.
- A shorthand method for writing an atom's electron configuration by using the symbol of the noble gas from the previous period to represent the inner-shell electrons.
- Any energy state other than the ground state.
- Electrons in the outermost energy level of an atom
- Divisions of principle energy levels within an atom that are further divided into orbitals.
Down
- A massless particle of light consisting of a bundle of wave energy.
- A 3D region representing the most probable position of an electron according for an electron according to the quantum mechanical model.
- Model proposed by Neil Bhor where electrons move around nucleus.
- The current description of both light and matter as having characteristics of waves and particles simultaneously.
- The arrangement of electrons in the ground state of the element.
- The orbits or energy levels in the atomic models.
- Atom or group of atoms with a positive charge.
- An incomplete spectrum in the form of a series of colored lines.
- The lowest energy level of an electron in the Bohr model.
- A principle that states electrons will fill the inner most energy level before the outer most layers.
20 Clues: Any energy state other than the ground state. • Atom or group of atoms with a negative charge. • Atom or group of atoms with a positive charge. • The orbits or energy levels in the atomic models. • Electrons in the outermost energy level of an atom • The lowest energy level of an electron in the Bohr model. • ...
Chemistry of Life 2025-10-14
Across
- The main components of cell membranes.
- A solution where the concentration of solutes outside the cell is higher than inside.
- A chain of amino acids held together by peptide bonds.
- A form of endocytosis; where cells engulf liquid droplets.
- Respiration that takes place without oxygen.
- The carbohydrate that forms the cell wall of plants.
- A process where a constant internal environment is maintained despite changes in the internal and external environment.
- A lipid composed of glycerol and three fatty acids which are bonded together.
- The movement of molecules from an area of high concentration to an area of low concentration.
Down
- A solution where the concentration of solutes outside the cell is equal to inside the cell.
- A solution where the concentration of solutes outside the cell is lower than inside the cell.
- Organisms that use energy, usually light, to synthesize their own food.
- Nutrients made up of one or more sugar molecules.
- The loss of electrons from an atom or molecule.
- The movement of materials across a cell membrane using cell energy.
- A form of endocytosis; where cells engulf solid particles.
- Large molecules that are made by joining several separate units.
- A large carbohydrate molecule used by plants to store energy.
- The diffusion of water molecules.
- The movement of materials across a cell membrane without the use of energy from the sun.
20 Clues: The diffusion of water molecules. • The main components of cell membranes. • Respiration that takes place without oxygen. • The loss of electrons from an atom or molecule. • Nutrients made up of one or more sugar molecules. • The carbohydrate that forms the cell wall of plants. • A chain of amino acids held together by peptide bonds. • ...
Chemistry Elements Crossword 2025-11-26
Across
- How is the modern periodic table organized?
- What are highly reactive nonmetals that gain one electron to form -1 ions?
- How are elements rarely react with other substances classified?
- Metals have very ____ melting points
- Nonmetals are ____ conductors of heat and electricity
- Metalloids contain properties of _____ and ____
- An element is classified as _____ that readily forms compounds
- Lithium is a ______ Metal
- Lanthanides oxidize when exposed to ____
- Halogens charge is _____
- Have a full valence electron shell
- Elements have a regularity in their ______
- All _____ are radioactive
- What inert gases with full valence shells, making them very stabel.
- How many bonding pairs of electrons are present in the lewis dot structure of a nitrogen molecule?
- What metals have variable valencies and can form multiple positive ions?
Down
- Helium is a _____
- In groups 1-3 __ - __ have a consistent ion charge pattern
- curlum is a _____
- How many valence electrons does a atom of oxygen have?
- Manganese is a _____ Metal
- When metals and nonmetals chemically bond together, ions are formed from a _____ of electron.
- lanthanides and actinides are block elements which means they are ____ on earth and radioactive.
- Transition metals have good _____ of heat and electricity`]
- Metals ____ electrons
- What are highly reactive metals that readily lose one electron to form a +1 ion.
- Who is credited for designing the first periodic table?
- What reacts with water to form bases
- Europlum is a _____
- Alkalo metals are extremely _____
- Nonmetals _____ electrons
31 Clues: Helium is a _____ • curlum is a _____ • Europlum is a _____ • Metals ____ electrons • Halogens charge is _____ • Lithium is a ______ Metal • Nonmetals _____ electrons • All _____ are radioactive • Manganese is a _____ Metal • Alkalo metals are extremely _____ • Have a full valence electron shell • Metals have very ____ melting points • What reacts with water to form bases • ...
Grade 11 Chemistry 2025-11-17
Across
- Group of very reactive non-metals
- Scientist who proposed the Law of Octaves for organizing the elements
- Scientist who introduced atomic triads
- Two electrons shared between atoms is what kind of bond
- Gas that is identified with a pop test
- Discovered the neutron
- Element with many allotropes
- Compound added to propane tanks for detection of leaks
- Yellow nonmetal that forms acidic solutions when burned
- Number of valence electrons in oxygen
- Proposed the first modern atomic theory
- Speeds up a reaction
- Term for electrons in the outermost shell
- Most reactive metal
- Creates a bright red flame test
- Atoms of the same element with different masses
Down
- Property increasing across a period from left to right
- Strong solid made of covalent bonds throughout
- Established existence of a positively charged nucleus
- basic building blocks of material
- More reactive than magnesium but less reactive than lithium
- subatomic particles which participate in reactions
- Can be used to isolate silicon from sand
- Group of highly reactive metals
- Element essential for combustion
- Substance early experimenters attempted to create by transmutation
- Term used by Democritus for indivisible particles
- Horizontal rows in the periodic table
- Discovered the electron
- Elements with some qualities of metal and some qualities of non-metals
- One of the four Greek elements
- Bond formed by transfer of electrons
32 Clues: Most reactive metal • Speeds up a reaction • Discovered the neutron • Discovered the electron • Element with many allotropes • One of the four Greek elements • Group of highly reactive metals • Creates a bright red flame test • Element essential for combustion • Group of very reactive non-metals • basic building blocks of material • Bond formed by transfer of electrons • ...
Chemistry of Digestion 2026-01-21
Across
- Final section of small intestine absorbing vitamins and bile salts.
- Pancreatic enzyme that breaks down fats.
- Type of pancreatic cell that produces digestive enzymes.
- First segment of small intestine receiving pancreatic enzymes.
- To release substances like enzymes and bicarbonate.
- Organ that produces digestive enzymes and bicarbonate.
- Finger-like projections increasing surface area in small intestine.
- Pancreatic enzyme that breaks down carbohydrates.
- Muscular contractions moving food through intestines.
- Enzymes from the pancreas that break down proteins.
- What bicarbonate does to stomach acid.
Down
- Alkaline substance from pancreas that neutralises stomach acid.
- Biological catalysts produced by the pancreas.
- Partially digested food entering duodenum from stomach.
- Stomach content neutralised by pancreatic bicarbonate.
- Term for glandular secretion via ducts (like pancreatic enzymes).
- Middle part of small intestine where most nutrients are absorbed.
- Process aided by pancreatic enzymes in the duodenum.
- Primary function of jejunum and ileum.
- Tube connecting pancreas to duodenum.
20 Clues: Tube connecting pancreas to duodenum. • Primary function of jejunum and ileum. • What bicarbonate does to stomach acid. • Pancreatic enzyme that breaks down fats. • Biological catalysts produced by the pancreas. • Pancreatic enzyme that breaks down carbohydrates. • To release substances like enzymes and bicarbonate. • Enzymes from the pancreas that break down proteins. • ...
Chemistry Terms Crossword 2026-01-14
Across
- _____ Electrons: Electrons in the outermost orbital of the atom
- Different types of atoms, bonded together
- Made up of two or more substances
- A state of matter where particles resist some forces of attraction and can flow around each other
- A state of matter where particles move very quickly, overcoming attractive forces
- __________ metals (Two Words: 8,5): Reactive metals, but not as strongly as Group 1
- Multiple atoms bound together
- _____ substance: A substance that is made up of only one type of particle
- A neutral subatomic particle
- A powder that forms when two liquids are mixed together
- The process of turning a solid into a liquid
- Very reactive non-metals
- _____ change: the chemical composition of the substance has not changed
- _____ Metals: Very strongly reactive metals
- _____ Number: an identifying number that is unique for each element
- _____ Mixture: A mixture that is non-uniform - you can each type of substance
- Elements that are dull, brittle, and poor conductors of electricity
Down
- A row on the periodic table
- The process of turning a gas into a liquid
- _____ Change: the chemical composition of the substance has changed
- The same type of atom, either separate or bonded together
- A negatively charged subatomic particle
- The process of turning a liquid into a solid
- A column on the periodic table
- A state of matter characterized by low-particle movement
- _____ Mixture: A mixture that appears uniform in composition; A solution
- The process of turning a gas into a solid
- The process of turning a liquid into a gas
- ______ property: A property describing the substance by itself
- _______ metals: Elements in the middle of the Periodic Table with low-reactivity
- _____ Number: Protons + Neutrons
- The process of turning a solid into a gas
- Elements with properties of metals and non-metals
- Elements that are shiny, malleable, and conduct electricity
- A positively charged subatomic particle
- ______ property: A property describing the ability for the substance to interact with something else
- _____ Gases: Non-reactive gasses
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 negatively charged subatomic particle • A positively charged subatomic particle • ...
Chemistry 30 Review 2025-12-19
Across
- Species that is reduced and causes oxidation
- Proton donor (Brønsted–Lowry)
- Reaction that releases heat
- Measure of acidity or basicity
- Species that is oxidized and causes reduction
- Electrode where oxidation occurs
- Reaction involving electron transfer
- Reaction where atoms add across a multiple bond
- Device that allows ion flow to maintain charge balance
Down
- Device using electricity to drive a reaction
- Measurement of heat changes
- Reactive group determining organic properties
- Reaction where one atom/group replaces another
- Reaction that absorbs heat
- Compound containing only carbon and hydrogen
- Energy required to break a chemical bond
- Ratio of products to reactants at equilibrium
- Process of forming large molecules from monomers
- Voltage produced by an electrochemical cell
- System shifts to oppose a stress
- Enthalpy change depends only on initial and final states
- Compounds with same molecular formula, different structures
- Device converting chemical energy to electrical energy
- Energy change of a system at constant pressure
- Forward and reverse reactions occur at equal rates
- Gain of electrons
26 Clues: Gain of electrons • Reaction that absorbs heat • Measurement of heat changes • Reaction that releases heat • Proton donor (Brønsted–Lowry) • Measure of acidity or basicity • System shifts to oppose a stress • Electrode where oxidation occurs • Reaction involving electron transfer • Energy required to break a chemical bond • Voltage produced by an electrochemical cell • ...
Chemistry Crossword Challenge 2025-12-19
Across
- the time that it takes for half the atoms in a given sample to decay
- 6.02 x 10^23
- the basic unit of matter
- a large nucleus splits into two smaller nuclei
- element with only one proton in the nucleus
- water is a ________ molecule
- small number used to state the ratio of elements in a chemical formula
- a nuclear emission containing two protons and two neutrons
- a nuclear emission with no mass and a negative charge
- the highest energy electron shell
- a negative subatomic particle discovered by Thomson
- horizontal arrangement of elements in the periodic table
- Mrs. Torres' favorite compound
- Ar
- from gas to liquid
Down
- two or more elements chemically combined
- symbol for iron
- combines two light nuclei to form a heavier nucleus
- element number 79
- neutral particle inside the nucleus of an atom
- contains protons and neutrons
- vertical columns on the periodic table
- substance shown before the arrow in a chemical equation
- nuclear emission with the greatest penetration power
- letters that represent an element in the Periodic Table
- from liquid to solid
- it goes up as the temperature goes up
- positive particle inside the nucleus of an atom
- substance shown after the arrow in a chemical equation
- symbol for silver
30 Clues: Ar • 6.02 x 10^23 • symbol for iron • element number 79 • symbol for silver • from gas to liquid • from liquid to solid • the basic unit of matter • water is a ________ molecule • contains protons and neutrons • Mrs. Torres' favorite compound • the highest energy electron shell • it goes up as the temperature goes up • vertical columns on the periodic table • ...
Fall Chemistry Final 2025-12-10
Across
- two or more charged atoms bonded together
- Unit of electrical current
- A negatively charged subatomic particle
- What happens to ionic compounds in water
- A systematic way of thinking with its own purposes and methodologies, just as science is a systematic way of thinking with its own purposes and methodologies
- Energy transfer through physical contact
- The main mechanism of static
- When an atom gets a partial charge
- A charged atom
- The site of the most rapid glacial melt in the world
- Unit of mass
- Length x Width
- Sodium chloride
- The type of light energy that is emitted by dark materials over time
- F=cm T
- Unit of energy
- Calories of energy required to melt 1 gram of a substance
- A push or pull
- Mass per unit volume
- A proposed solution to stop ice melt by building an underwater wall to block warm salt water from the glacier
- Unit of energy
- A positively charged subatomic particle
- Light energy
- A substance that does not easily allow electricity through
Down
- Area x Height
- M1T1=M2T2
- Side of a graph usually used to show the dependent variable
- Electrons moving
- A natural event that can release lots of carbon dioxide into the atmosphere
- A substance that allows electricity through
- The ionic compounds needed in the human body for various functions
- A proposed solution to stop ice melt by adding a layer of white beads to increase the albedo of the ice
- Side of a graph usually used to show time or independent variable
- Energy in calories needed to change 1 gram of it by 1 °C
- A type of material that has free electrons and conducts electricity
- The smallest component of all matter
- Energy transfer through the movement of fluids
- The whiteness of a material
- Solid, liquid, or gas
- A subatomic particle with no charge
40 Clues: F=cm T • M1T1=M2T2 • Unit of mass • Light energy • Area x Height • A charged atom • Length x Width • Unit of energy • A push or pull • Unit of energy • Sodium chloride • Electrons moving • Mass per unit volume • Solid, liquid, or gas • Unit of electrical current • The whiteness of a material • The main mechanism of static • When an atom gets a partial charge • A subatomic particle with no charge • ...
HL Chemistry Crytp 2025-12-11
Across
- Life force, right aluminum? It has a mirror image (6)
- Strange non-scare regarding benzene structure (9)
- Constant financial agreements found in double glazing? (2,5)
- The loan arranged for fuel (7)
- Action of salty mixture speeds up the process (8)
- Total securities involving axial symmetry? (5,5)
- Voltaic cell component: bridge made of sailors? (4)
- Rodent followed by energy gives speed (4)
- ketones hidden in carbony larder (8)
- French physicist: a gem on the radio (5)
- Article and poem make a site of loss(5)
- Study of rates: nice skit performed (8)
- Chaos seen in green trophy cabinet (7)
- Ouch! on the radio measures this confused fence query (9)
- New era for a gas (4)
- Thank you, North Dakota, everybody, for the light show! (7)
Down
- Lid nag exploded? It donates electrons (6)
- Laugh, look, information source: it forms salts (7)
- Mean orient shifts for optical isomer (10)
- Bird allowance used for volumetric analysis (9)
- Energy when crazy hunt loses united in chaotic play(8)
- Elementary particle, for example, at four it has unknown capacity to attract (17)
- Energy to form crystal: tiny cattle help movement (7,8)
- Base found in walk a little way (6)
- One very high energy atomic variant (7)
- Spy with known amount of substance (4)
- Rate of change found in love city, perhaps? (8)
- Sweet compound found in wildest errands (5)
- Path or bit of skull? (7)
- Flow of charge occurring at this time (7)
30 Clues: New era for a gas (4) • Path or bit of skull? (7) • The loan arranged for fuel (7) • Base found in walk a little way (6) • ketones hidden in carbony larder (8) • Spy with known amount of substance (4) • Chaos seen in green trophy cabinet (7) • One very high energy atomic variant (7) • Article and poem make a site of loss(5) • Study of rates: nice skit performed (8) • ...
Chemistry Elements Crossword 2026-02-03
Across
- Used to make steel.
- Used to coat steel to prevent rust.
- A metal used in coins.
- Used in electrical wires.
- The only metal that is liquid at room temperature.
- Used in computer chips and electronics.
- Makes up about 78% of the air we breathe.
- Burns with a bright white light.
- Used to keep swimming pools clean.
Down
- The lightest element, makes up most of the sun.
- Precious metal, symbol comes from "Argentum".
- Used to make soda cans and foil.
- To start a fire, found in diamonds and coal.
- Good for strong bones and teeth.
- Combined with Chlorine to make table salt.
- Makes balloons float, makes your voice high.
- Used in bright glowing signs.
- Found in bananas
- Humans need to breathe this to survive.
- A shiny expensive color yellow used in money.
20 Clues: Found in bananas • Used to make steel. • A metal used in coins. • Used in electrical wires. • Used in bright glowing signs. • Used to make soda cans and foil. • Good for strong bones and teeth. • Burns with a bright white light. • Used to keep swimming pools clean. • Used to coat steel to prevent rust. • Used in computer chips and electronics. • ...
Chemistry Word Puzzle 2026-02-03
Across
- another name for salt.
- makes up a little less than 1% of the atmosphere.
- shiny and is why stainless steel is stainless.
- most abundant element in the universe.
- strengthens the bones.
- used to galvanize steel.
- part of what you breathe.
- gas used in glowing signs.
- in most batteries.
- gas that is used to make balloons float.
Down
- a type of metal
- most electronegative element.
- foil.
- used to disinfect water.
- in bananas.
- glows in the dark and is important to live
- also called the basis of life
- 5 cents.
- 78% of the Earth's atmosphere.
- strong and lighter than steel.
- what is used to write with a pencil.
21 Clues: foil. • 5 cents. • in bananas. • a type of metal • in most batteries. • another name for salt. • strengthens the bones. • used to disinfect water. • used to galvanize steel. • part of what you breathe. • gas used in glowing signs. • most electronegative element. • also called the basis of life • 78% of the Earth's atmosphere. • strong and lighter than steel. • ...
Science 10 Chemistry 2026-02-16
Across
- Compound formed between a metal and non-metal
- Name of this polyatomic ion: NO₃⁻
- Particle found in the nucleus with positive charge
- Elements on the right side of the periodic table
- Prefix meaning “five”
- Scientist who proposed the plum pudding model
- Ending used for the second element in a binary compound
- Horizontal row on the periodic table
- Type of bond formed by sharing electrons
- particle with a negative charge
- Compound made of non-metals
Down
- Positively charged ion
- Negatively charged ion
- Electrons in the outer energy level
- The maximum number of electrons in the first energy level
- This equals the total number of protons and neutrons
- If a metal has more than one charge, you must include this
- Scientist who discovered the nucleus using the gold foil experiment
- Neutral particle in the nucleus
- Chart used to organize elements
- Number of valence electrons in Group 1 elements
- Vertical row on the periodic table
- Prefix meaning “three”
23 Clues: Prefix meaning “five” • Positively charged ion • Negatively charged ion • Prefix meaning “three” • Compound made of non-metals • Neutral particle in the nucleus • Chart used to organize elements • particle with a negative charge • Name of this polyatomic ion: NO₃⁻ • Vertical row on the periodic table • Electrons in the outer energy level • Horizontal row on the periodic table • ...
Chemistry Crossword Puzzle 2026-03-17
Across
- The atomic number is the measure of ___ .
- A ___covalent bond has an unequal sharing of electrons between the two atoms.
- Found in shells orbiting nucleus, with a negative charge.
- A chemical ___expresses a chemical composition of a substance.
- The smallest unit of an element.
- The overall charge of an atom.
- A substance that cannot be broken down into simpler substances by ordinary chemical means.
- This type of reaction can reverse reactants and products in both directions.
- Hydrogen bonds have a _____attractive force.
- Atomic ___ is the sum of the number of protons and neutrons.
- This type of reaction exchanges components.
- Atoms that form a bond due to opposing charges are connected by an ___ bond.
- Chemical symbol is Na.
- Nonpolar molecules are ___(do not mix well with water).
- Found in the nucleus of an atom, with no charge.
- The outermost electron shell.
- Anything that occupies space.
- Radioisotopes can be used in the treatment of ___ .
- A ____ formula shows how the atoms are linked together.
Down
- Substance formed by atoms from two or more elements(can have ionic or covalent bond).
- Substance formed by two or more atoms bonded together by covalent bonds only.
- Atom of the same element with a different number of neutrons.
- Polar molecules are ___ (mix well with water).
- The number allowed in the first shell.
- If the valence shell is not full, the atom is considered ___ .
- Ion with a negative charge.
- This type of reaction breaks down bonds.
- This type of reaction forms a new bond.
- Found in the nucleus of an atom, with a positive charge.
- Ion with a positive charge.
- The typical number in a valence shell (octet rule).
- Scientific study of matter and the interaction of matter.
- Atoms form molecules by sharing electrons are joined with a ___bond.
- The chemical ____ is a shorthand for referring to an element or atom of an element.
- Nonpolar covalent bonds shared electrons spend ___time revolving between the two atoms.
- Atom with a net charge due to the loss or gain of an electron.
36 Clues: Chemical symbol is Na. • Ion with a negative charge. • Ion with a positive charge. • The outermost electron shell. • Anything that occupies space. • The overall charge of an atom. • The smallest unit of an element. • The number allowed in the first shell. • This type of reaction forms a new bond. • This type of reaction breaks down bonds. • ...
Majoody 2020-09-15
12 Clues: its in Thuwal • a nice hyundai • after the nukes • 672 minus a dozen • home of the celtics • after ball we go .. • british valedictorian • we do this in al-Hada • elements and compounds • looks nice when chiselled • something Majoody struggles to make • Denis Rodman has more of these then Michael Jordan
Majoody 2020-09-15
12 Clues: A hyundai. • It's in Thuwal. • After the nukes. • 672 minus a dozen. • After ball we go .. • home of the Celtics. • British valedictorian. • We do this in al-Hada. • Elements and compounds. • Looks nice when chiselled. • something Majoody struggles to make • Denis Rodman has more of these then Michael Jordan.
GENERAL CHEMISTRY 1 2021-09-08
12 Clues: Reversible. • Irreversible. • Solid to gas. • Gas to solid. • Gas to liquid. • Solid, liquid and gas • It has mass and volume. • The basic unit of matter. • It is the study of matter. • Depends on the size or mass. • Weight/acceleration due to gravity. • Does not depend on the size or mass.
Lab Week 2014 2014-02-12
12 Clues: Right now • A lab gift • Some lab garbage • Not a type of TV • Component of blood • Can't live without it • Stop ther germ spread • Electrolytes done here • Round and round it goes • Chocolate, yellow or black • Gets to the heart of the matter • Instruments can't run without it
History of Atoms 2025-01-13
Across
- Proved the Existence of Neutrons
- Played Soccer for University of Copenhagen
- Man who Split the Atom
- Father of Science
- Father of Modern Chemistry
- Court Reporter
Down
- Made discovery at the age of 42
- successful pianist
- President of Royal Society
- aided French soldiers during WW1
- Loved Theater
- Did work in Cosmology
12 Clues: Loved Theater • Court Reporter • Father of Science • successful pianist • Did work in Cosmology • Man who Split the Atom • President of Royal Society • Father of Modern Chemistry • Made discovery at the age of 42 • Proved the Existence of Neutrons • aided French soldiers during WW1 • Played Soccer for University of Copenhagen
2021-2022 Paige and Ketaki 2022-05-09
9 Clues: boss baby • ...harmony • farts a lot • bad grade songs • your best friend • mamba mentality? • throwback thursday • we lost by 40 points.... • body building and trips to the ap
NUCLEAR CHEMISTRY-SCIENTISTS! 2020-02-25
9 Clues: X-ray • Cosmic Rays • Compton Effect • Manhattan Project • Discovered neutron • Father of "Nuclear Physics" • Father of "Nuclear Chemistry" • Coined the term "Radioactivity" • Evidence of Radioactivity with Marie Currie
Science 2022-11-04
Across
- when the molecules have more than one type of atom.
- Whenever atoms of the same type are grouped together.
- a building block because they can be combined in many.
- relating to chemistry, or the interactions of substances as studied in chemistry.
- diverse in character or content
- a metal made by combining two or more metallic elements, especially to give greater strength or resistance to corrosion
Down
- a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., without breaking chemical bonds.
- whenever a type of atom is held together with chemical bonds.
- when different elements are grouped together.
- of the same or a similar kind or nature.
10 Clues: diverse in character or content • of the same or a similar kind or nature. • when different elements are grouped together. • when the molecules have more than one type of atom. • Whenever atoms of the same type are grouped together. • a building block because they can be combined in many. • whenever a type of atom is held together with chemical bonds. • ...
CARIRI's Crossword Puzzle 2024-10-21
Across
- CARIRI has three locations 1) St. Augustine 2) Macoya and __________
- This CARIRI programme allows us to work with early stage entrepreneurs and SMEs to #BuildBetterBusinesses over a 3 month period.
- First name of the Lab Manager for the Analytical Chemistry department
- #14 under our Occupational Hygiene Services (OHS) ‘Current Services’: ____________ Assessments
- CARIRI is a founding member of this organization that facilitates collaboration across borders and boundaries.
Down
- Under our Industrial Materials Unit, our team provides state-of-the-art testing and quality assurance services to ensure that _____________ materials meet industry standards.
- CARIRI’s Chairman Surname
- This is an Instrumentation used by our Analytical Chemistry Department
- CARIRI was established with the technical and financial assistance from the UNDP and _______
- CARIRI is certified under this HSE management system.
10 Clues: CARIRI’s Chairman Surname • CARIRI is certified under this HSE management system. • CARIRI has three locations 1) St. Augustine 2) Macoya and __________ • First name of the Lab Manager for the Analytical Chemistry department • This is an Instrumentation used by our Analytical Chemistry Department • ...
uncrossword 2023-02-14
10 Clues: doomguy • scarcely • work in team • learn chemistry • hero in mortal kombat • something not important • when you can't do something • something that you can't realize • when you cant understand somebody • what you shouldn't do with an opponent
Spelling lesson 17 (wh,ch,ph) 2024-04-11
10 Clues: A picture. • An animal. • Experiment. • A kind of band. • A kind of doctor. • What is _________? • No,_________ in class. • It is used to hold stuff. • You can have _________ toy you want. • The wind was ___________ in the trees.
Kenyon College Quiz Bowl 2025-05-06
10 Clues: THE university • Frankly nostalgic • It brings the buzz • Tenth in a lineage • Causes Jordan Yellin' • NCA mineral, for Iris • Compounding difficulty? • Experience rapture, or tossups • Our leader, our compass, our buzzer • Fitting footwear color for surrender
Unit 1 Section B 2021-03-17
LAB WEEK - MONDAY 2016-04-15
9 Clues: Gotta go • Where we work • Got you covered • Always delivers • Chemistry specific • Use these sparingly! • Study of blood cells • Separated from red cells • Bacteria that grows without air
Chemistry Crossword Puzzle 2016-04-03
Across
- The minimal amount of any physical entity involved in an interaction
- How close a result comes to the true value
- A white crystalline substance that gives seawater its characteristic taste and is used for seasoning
- The process by which an atom or molecule acquires a negative or positive charge
- The chemical formula of Sulfuric acid
- The distance between successive crests of a wave, especially points in a sound or electromagnetic wave
- An atom or molecule with a net electric charge due to loss or gain of one or more electrons
- The Greek prefix for "ten"
- An atom or nucleus having a specific # of protons & neutrons
- A solution of hydrogen fluoride in water
- The chemical formula of Potassium hydroxide
- Colorless fluid part of blood
- A unit of pressure and sometimes used as a reference or standard pressure
- The Greek prefix for "one"
- The Greek prefix for "four"
- The solute state of carbon dioxide in water
- A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms
- The # of positive charges or protons in an atoms nucleus
- A chemical reaction in which a single substance is produced from multiple reactants
- A measure of the size of its atoms; typical distance from the center of the nucleus to the boundary of the electrons
- An insoluble solid that emerges from a liquid solution
- A weak bond between 2 molecules resulting from an electrostatic attraction between a proton in one molecule & an electronegative atom in the other
- Mass of a substance divided by its amount of substance
- The chemical formula of Sodium hydroxide
- Principals on which the practice of an activity is based
- Idea or theory that's not proven but leads to more study
- The Greek prefix for "eight"
- The mass of a substance containing the same number of fundamental units as there are atoms
- The Greek prefix for "nine"
- A part of aspect of something abstract
- A small object built to scale that represents another object
- Separation of electric charge leading to a molecule or its chemical groups having an electric dipole or multiple moment
- The sum of the atomic weights of the atom in the empirical formula of the compound
- An odorless, colorless gas that can kill you
Down
- Is a visual representation of a reaction using chemical formulas
- Having a consistency like that of water or oil
- A chemical compound that contains exactly two different elements
- An activity series list metals and other elements in order of their reactivity, with the most reactive elements at the top
- A specified or indefinite number or amount
- The chemical formula of Nitric acid
- A discrete bundle (or quantum)of electromagnetic (or light) energy
- Named after French mathematician, physicist, inventor, writer Blaise Pascal
- When heated in air will decompose to give elemental mercury, a liquid metal, and oxygen gas
- The lowest energy state of an atom or other particle
- The chemical formula of Hydrochloric acid
- Sum of masses of its isotopes x natural abundance
- The percentage of a formula mass represented by each element
- It is quantitatively expressed in symbols as: X + energy -> X + e
- Are the result of a model which combines atomic orbitals on a single atom that lead to a new set of orbitals
- A coherent,typically large body of matter
- A system of names and terms used in a particular field of study or community
- A reaction in which one of the reactants is oxygen, the other reactants is usually hydrocarbon
- A written representation of a chemical reaction, - symbols and amounts of reactants are separated in an equation
- The idea that atomic orbitals fuse to form newly hybridized orbitals, which influences molecular geometry & bonding properties
- A chemical element with the symbol Li
- The basic unit of a chemical element
- A pair of equal and oppositely charged or magnetized poles separated by a distance
- 3 dimensional space occupied by gas, liquid or solid
- Any of the elements fluorine, chlorine, bromine, iodine, and astatine occupying group VIIA (17)
- Is = to 1/12 the mass of carbon-12 atom
- The rate at which something occurs or is repeated over a particular period of time
- Physical substance in general, as distinct from mind & spirit
- What the "10" represents in P4O10.
- A negatively charged ion, one that would be attracted to the anode in electrolysis
- The chemical formula of Calcium
65 Clues: The Greek prefix for "ten" • The Greek prefix for "one" • The Greek prefix for "four" • The Greek prefix for "nine" • The Greek prefix for "eight" • Colorless fluid part of blood • The chemical formula of Calcium • What the "10" represents in P4O10. • The chemical formula of Nitric acid • The basic unit of a chemical element • The chemical formula of Sulfuric acid • ...
Chemistry of life 2016-09-29
Across
- Saturated fats tend to be _______at room temperature.
- Sometimes electrons are _______between atoms instead of being transferred.
- Solutions with a pH below 7 are considered _______.
- Cellulose is the ____________materials found in the cells.
- Glycogen is only found in ______.
- The atoms that compose compounds are held together by______.
- Bond formation always involves the _____that surround the nucleus of each atom.
- When electrons are gained or lost,______are formed.
- A molecule that is positive at one end and a negative at the other end is called a ______.
- The building blocks of the nucleic acids are _______.
- Many,many molecules of ________are bonded together to form starch
- Enzymes are never_______.
- There are ______different amino acids.
Down
- A solution is a _________mixture.
- Solutions with a pH above 7 are considered _______.
- The shared electrons spend less time around the ______atom.
- Water molecules stick to one another because of ______.
- A ______is polar because there is an uneven distribution of electrons between the oxygen and hydrogen atoms.
- The building blocks of proteins are_______.
- There are two main types of bonds:_______.
- A single water molecule can form up to ______hydrogen bonds with other water molecules.
- Enzymes can be used ________again.
- Starch is only found in _______.
- When atoms are joined together by covalent bonds,______are formed.
- _______are very specific, they can only carry out one job, but they do that one job extremely well.
- Unsaturated fats tend to be _______at room temperature.
- These compounds are generally not _______in water.
27 Clues: Enzymes are never_______. • Starch is only found in _______. • A solution is a _________mixture. • Glycogen is only found in ______. • Enzymes can be used ________again. • There are ______different amino acids. • There are two main types of bonds:_______. • The building blocks of proteins are_______. • These compounds are generally not _______in water. • ...
Chemistry basics review 2016-09-20
Across
- a measured amount of matter in an object
- should be worn when dealing with chemicals to protect your hands
- worn on eyes during all lab experiments
- curved upper surface level in a tube
- person who teaches us our chemistry class
- material that is a bacteria that can cause disease
- used to keep chemicals off of skin and clothing
- can go under extreme hazardous material
- use fire extinguisher on
- someone's clothing is on fire
Down
- workplace hazardous materials information system
- where a gas mask when around this
- can decompose easily to release an oxidizing substance
- used to heat chemicals in an experiment
- can cause severe burns to skin resulting in permanent damage
- can cause serious or long term effects or even death
- prediction of what is going to happen
- can catch on fire easily
- a glass cylinder for lab use
- use to pick up test tubes
20 Clues: can catch on fire easily • use fire extinguisher on • use to pick up test tubes • a glass cylinder for lab use • someone's clothing is on fire • where a gas mask when around this • curved upper surface level in a tube • prediction of what is going to happen • worn on eyes during all lab experiments • used to heat chemicals in an experiment • ...
Chemistry of Life 2016-09-27
Across
- Substances produced by cells that prevent sharp, sudden changes in pH
- Parts of the mixture are unevenly mixed
- Any compound that forms H+ ions in a solution
- A molecule that is positive on one end and negative on the other end
- Holds together the atoms that compose compounds
- Composed of many molecules of sugar bonded together
- Formed when electrons are shared between atoms
- Substance that does the dissolving
- Composed of two molecules of sugar bonded together
- Attraction between molecules of the same substance
- Compounds made up of carbon, hydrogen and oxygen in a ratio of 1:2:1
Down
- Substance composed of two or more elements or compounds that are physically mixed together but not chemically combined
- Substance that is dissolved
- Chemical combination of two or more elements in definite proportion
- A pure substance consisting of ally the same type of atom
- Mixture of water and undissolved materials
- Contain one molecule of sugar
- Stringy, fibrous material found in the cell wall of plants
- Measurement system used to indicate the concentration of "H" ions in a solution
- Made from thousands of smaller molecules
- Formed when one or more electrons are transferred from one atom to another
- Parts of the mixture are evenly mixed
- Attraction between molecules of a different substance
- The basic unit of matter
- Any compound that forms OH- ions in a solution
25 Clues: The basic unit of matter • Substance that is dissolved • Contain one molecule of sugar • Substance that does the dissolving • Parts of the mixture are evenly mixed • Parts of the mixture are unevenly mixed • Made from thousands of smaller molecules • Mixture of water and undissolved materials • Any compound that forms H+ ions in a solution • ...
Chemistry of Life 2016-09-26
Across
- pure substance consisting of all the same atom
- shared electrons spent part of the time traveling around the _______ nucleus and part of the time traveling around the ______ nucleus
- ____ is only found in plants
- any compound that forms hydroxide ions in a solution
- solutions with a ph above 7 are considered _____
- unsaturated fats tend to be ____ at room temperature
- solutions with a ph below 7 are considered _____
- ____ only found in animals
- a ph of 7 is a _____ solution
- A mixture of water and undissolved materials
- ____ is the solute
- positive charge
Down
- basic unit of matter
- neutral/ no charge
- the building blocks of the nucleic acids are____
- Acids the building blocks of protein
- when electrons are gained or lost these are formed.
- many of the molecules in living cells are so large that they are known as____
- saturated fats tend to be ____ at room temperature
- water______ the temperature on earth
- substance that is dissolved
- _____ is the solvent
- substance that does the dissolving
- negative charge
- bond 4 or more electrons are transferred from one atom to another
- _____ are generally not soluble in water
26 Clues: negative charge • positive charge • neutral/ no charge • ____ is the solute • basic unit of matter • _____ is the solvent • ____ only found in animals • substance that is dissolved • ____ is only found in plants • a ph of 7 is a _____ solution • substance that does the dissolving • Acids the building blocks of protein • water______ the temperature on earth • ...
Organic Chemistry 2 2015-12-09
Across
- carbonyl with a carbon and hydrogen at each end respectively.
- benzene with one methyl group
- carbonyl with two carbons on each end.
- C triple bond C
- Combination of Michael and aldol reactions to form a double ring.
- meta directors are called ___
- EWG's __ aromatic rings.
- The base in a claisen reaction must be the same as the _____
- amine group with a c=o next to it
- Two ketones in an Aldol reaction it will be ____
- C-C
- O=C-OH
Down
- The carbon one away from the carbonyl is the ___ carbon.
- Acetoacetic ester has ____ ester(s).
- Ortho para directors are called __
- grignard reactions attack a ketone or aldehyde and adds an R group, the ketone or aldehyde converts to a(n)
- C=C
- A molecule that accepts electrons in a reaction __
- EDG's __ aromatic rings.
- The carbon two away from the carbonyl is the ___ carbon.
- A way to add substituents to an aromatic ring.
- methyl groups with (N-) are attached to a(n)
- Intramolecular claisen condensation involves two __
- A molecule that donates electrons in a reaction __
- ___ reaction is between a conjugated diene and substituted alkene.
- __ reaction froms a c=c from two reactants using ylides
- conjugated systems allow more
- when removing alpha hydrogens the reaction favors ones that allow more __
- Lower Pka means that it is more ___
- The hydrogen on the alpha carbon is ___
- The reaction that results in a product with an aldahyde and ketone is ___
31 Clues: C=C • C-C • O=C-OH • C triple bond C • EDG's __ aromatic rings. • EWG's __ aromatic rings. • benzene with one methyl group • meta directors are called ___ • conjugated systems allow more • amine group with a c=o next to it • Ortho para directors are called __ • Lower Pka means that it is more ___ • Acetoacetic ester has ____ ester(s). • carbonyl with two carbons on each end. • ...
Chemistry Study Guide 2016-02-11
Across
- 2882
- changes during reaction
- neutral charge
- smallest unit
- negative charge
- amount of protons
- positive charge
- lacks characteristics of a metal
- row of elements
- electrons on the outside
- two different elements combined
- center
- element letters
Down
- smallest particle
- thin coat of metal
- gaseous element
- chemical element
- Russian chemist
- formed by chemical reactions
- column of elements
- mass of object
- absorbed
- released
- solid material
- things in the periodic table
25 Clues: 2882 • center • absorbed • released • smallest unit • neutral charge • mass of object • solid material • gaseous element • negative charge • Russian chemist • positive charge • row of elements • element letters • chemical element • smallest particle • amount of protons • thin coat of metal • column of elements • changes during reaction • electrons on the outside • formed by chemical reactions • ...
Chemistry study guide 2016-02-11
Across
- rows
- gas element that makes up group 18 in the periodic table
- Mendeleev created the periodic table
- no energy given off
- smallest part of a substance that has all the properties of that substance
- short representation of a chemical element
- carrying negative charge
- a thing that is composed of 2 or more elements
- Smallest part of an element
- wht changes in a chemical reaction
- of conservation of mass total amount of mass within substance
- columns
Down
- metal emement that lacks most of the properties of a metal
- carries no charge
- what comes out
- energy given off
- an element that has metals,solid and non metal
- substance consisting of atom
- element that has the property of shiny rushy ductility and malleability
- the positively charged center of the atom
- Carring positive charge
- mass the mass of an atomic particle
22 Clues: rows • columns • what comes out • energy given off • carries no charge • no energy given off • Carring positive charge • carrying negative charge • Smallest part of an element • substance consisting of atom • wht changes in a chemical reaction • mass the mass of an atomic particle • Mendeleev created the periodic table • the positively charged center of the atom • ...
Chemistry Study Guide 2016-02-11
Across
- regions of space outside the nucleus of an atom where an electron may exist (rings)
- smallest part of an element and cannot be broken down any further
- abbreviation of an element
- new substances formed from a chemical reaction
- positively charged center of an atom (high density)
- same number of protons and electrons
- created Periodic Table
- energy is released (warmer)
- energy is absorbed (cooler)
- row of elements (7) (horizontal)
- shiny, good conductors of heat & electricity, solid
- element with low chemical reactivity, odorless, colorless
- column of elements (18) (vertical)
- atomic particles that move around the nucleus of an atom and carry a positive charge
- amount of matter in an atomic particle
- a reaction that occurs in which a layer of metal is bonded to the surface of another metal
- of Conservation of Mass matter, mixtures, pure substances can be changed, but the mass stays the same
Down
- combination of two or more elements
- chemical compound made up of different atoms bonded by chemical relationships
- electrons in outermost orbital
- substance that cannot be broken down into simpler substances
- atomic particles found in nucleus of atom, carry no electric charge
- cross of metals and no metals, can partially conduct electricity
- aren't malleable or ductile, poor conductors of heat and electricity
- atomic particles found in nucleus of atom, carry positive charge
25 Clues: created Periodic Table • abbreviation of an element • energy is released (warmer) • energy is absorbed (cooler) • electrons in outermost orbital • row of elements (7) (horizontal) • column of elements (18) (vertical) • combination of two or more elements • same number of protons and electrons • amount of matter in an atomic particle • ...
C1 - Carbon Chemistry 2016-02-17
Across
- The smallest particle of a chemical element that can exist.
- A chemical able to dissolve other substances.
- A chemical that changes colour or becomes transparent depending on their temperature.
- The ways in which CARBON is recycled in nature.
- A state of matter where there are little or no force of attraction between particles.
- Formed by the buried remains of plants and animals, a mixture of HYDROCARBON compounds.
- The process of splitting up long-chain HYDROCARBONS.
- A liquid easily evaporated at normal temperatures.
- The process of separating CRUDE OIL into separate compounds.
- An element we give the symbol C.
- Long chain molecules that make up plastics.
- The envelope of gases surrounding the earth or another planet.
- A chemical able to be dissolved in a SOLVENT.
Down
- The process of burning a substance to release energy.
- The simplest HYDROCARBON that contains only single CARBON-CARBON bonds and HYDROGEN.
- A subatomic particle with no electric charge.
- Chemicals added to food to improve their flavour, colour or to make them last longer.
- Single molecules that join together to make POLYMERS.
- A subatomic particle with a positive electric charge.
- A subatomic particle with a negative electric charge.
- A chemical that absorbs natural light and releases it over time, making it glow in the dark.
- A state of matter where there are some force of attraction between particles, but the particles are free to move.
- An element that consists of only 1 PROTON and 1 ELECTRON.
- A carbon compound contain an -COOG group.
- The group of chemicals that give paints their colour.
- A pleasant smelling carbon compound, made in a reaction between an ALCOHOL and CARBOXYLIC ACID.
- A mixture of a SOLVENT and SOLUTES.
- HYDROCARBON compounds that contain at least 1 double CARBON-CARBON bond and HYDROGEN.
- Chemicals only containing CARBON and HYDROGEN.
- A state of matter where there are strong forces of attraction between particles, holding them in a fixed position.
- Molecules that help oil and water mix.
- A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
- A carbon compound containing an -OH group.
33 Clues: An element we give the symbol C. • A mixture of a SOLVENT and SOLUTES. • Molecules that help oil and water mix. • A carbon compound contain an -COOG group. • A carbon compound containing an -OH group. • Long chain molecules that make up plastics. • A subatomic particle with no electric charge. • A chemical able to dissolve other substances. • ...
