chemical reaction Crossword Puzzles

Chemical Crossword! 2018-03-13

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a change; new substance forms
physically, not chemically combined
where products get their atoms
found in the periodic table
elements chemically combined
formed from reactants
are broken in a chemical reaction
no atoms are added or ___
chemical ___ represents an element

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atom __ = to # of protons or electrons
The basic building block of matter
a change; properties stay the same
negatively charged particles
The centre of an atom
positively charged particles
neutral subatomic particles
protons plus neutrons = atomic ____

17 Clues: The centre of an atom • formed from reactants • no atoms are added or ___ • found in the periodic table • neutral subatomic particles • negatively charged particles • elements chemically combined • positively charged particles • a change; new substance forms • where products get their atoms • are broken in a chemical reaction • The basic building block of matter • ...

Unit 4: Chemical Reactions 2021-11-13

Unit 4: Chemical Reactions crossword puzzle

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One capital/shape type; can not break; atoms same
Change type with substance remaining the same
Liquid plus liquid makes this solid
Change type with new substance being formed
Proportion of number of each atom type
With >1 type of substance that are not attached
Shape or letters (& numbers) to represent matter
Tiny building block has protons, neutrons, electrons
With >1 chemical symbol touching is a chemical...
Periodic Table abbreviation is a chemical...

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Type of (color) change in chemical reactions
Physical change (of state) that can go back
Chemical reaction with oxygen to change color
Element types on zig zag line of PTE
Chemical change type that can't go back
With >1 capital/shape type; can break chemically
Element types on left side of Periodic Table
Element types on right side of Periodic Table
State of matter produced if fizzing/bubbling occurs

19 Clues: Liquid plus liquid makes this solid • Element types on zig zag line of PTE • Proportion of number of each atom type • Chemical change type that can't go back • Physical change (of state) that can go back • Change type with new substance being formed • Type of (color) change in chemical reactions • Element types on left side of Periodic Table • ...

home work 2025-10-17

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has more than one cell
different populations of living things in the same environment
a word that describes a living thing or something that was once living in an environment
a substance that stops a chemical reaction to continue at a lower temperature
life, animal, plant, fungus, protist, or bacterium
a protein that is expanding the rate of a chemical reaction without changing
a system with living and non living organisms in the same environment
Dna within a cell with special functions

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energy needed to make a specific chemical reaction.
a explanation that can possibly be proven
a word that describes a non living thing in an environment
is a force between molecules that are alike

12 Clues: has more than one cell • Dna within a cell with special functions • a explanation that can possibly be proven • is a force between molecules that are alike • life, animal, plant, fungus, protist, or bacterium • energy needed to make a specific chemical reaction. • a word that describes a non living thing in an environment • ...

Atoms, Elements, Compounds 2025-11-12

Atoms, Elements, Compounds crossword puzzle

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A substance formed as a result of a chemical reaction
A negatively charged particle found orbiting the nucleus
The central part of an atom containing protons and neutrons
A measure of how much matter an object contains
The smallest part of an element that can exist
A substance that takes part in and undergoes change during a chemical reaction

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A positively charged particle found in the nucleus of an atom
A neutral particle found in the nucleus of an atom
A pure substance made of only one type of atom
A substance made when two or more elements are chemically joined
Two or more atoms chemically bonded together
A substance that speeds up a chemical reaction without being used up

12 Clues: Two or more atoms chemically bonded together • A pure substance made of only one type of atom • The smallest part of an element that can exist • A measure of how much matter an object contains • A neutral particle found in the nucleus of an atom • A substance formed as a result of a chemical reaction • A negatively charged particle found orbiting the nucleus • ...

Photosynthesis and Cellular Respiration 2022-12-13

Photosynthesis and Cellular Respiration crossword puzzle

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The end result from a chemical reaction made by two or more reactants
Breathing
A chemical that changes because of chemical reaction
Natural sugar
The organelle photosynthesis takes place in

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Process used to turn glucose into energy
The organelle cellular respiration takes place
The chemical in plants that produces green pigment
The tiny holes in leaves that are necessary for photosynthesis
The process of plants making food for themselves using light

10 Clues: Breathing • Natural sugar • Process used to turn glucose into energy • The organelle photosynthesis takes place in • The organelle cellular respiration takes place • The chemical in plants that produces green pigment • A chemical that changes because of chemical reaction • The process of plants making food for themselves using light • ...

Thermochemistry 2023-04-28

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form of energy that an object has by reason of its motion
heat is transmitted through a substance when there is a difference n temperature
heat needed to raise the temperature of the unit mass of given substance by amount
substance present at the end of a chemical reaction
accompanied by the release of heat
amount of energy needed to warm 1g H2O by 1*C
energy contained within a system that is responsible for its temperature
energy that comes from a source and travels through space at speed of light

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measuring the amount of heat released or absorbed during chemical reaction
requiring the absorption of heat
Quantity of heat necessary to change 1g of solid to liquid without temperature changes
study of heat energy which is associated with chemical reactions changes like melting or boiling
the movement caused within a fluid by the tendency of hotter material to rise
Amount of heat needed to turn 1g of liquid into vapor, without change in temperature
substance that undergoes change during a reaction
movement of tiny atoms, molecules or ions in solids, liquids and gases
unit of energy in the SI Unit system
temperature where 0* is freezing point and 100* is boiling point
SI Unit of thermodynamic temperature

19 Clues: requiring the absorption of heat • accompanied by the release of heat • unit of energy in the SI Unit system • SI Unit of thermodynamic temperature • amount of energy needed to warm 1g H2O by 1*C • substance that undergoes change during a reaction • substance present at the end of a chemical reaction • form of energy that an object has by reason of its motion • ...

Vocab Review 3 2023-05-17

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An Italian scientist who classified the difference between atoms and molecules
A way to measure concentration and is the number of moles of solute dissolved.
The reactant that determines the amount of produce that can be formed by the reaction
Change in the amount of reactant or product in a unit of time
1 compound splits apart into 2 or more
Allows chemists to count the number of representative particles in a substance
Relates the amount of moles of any two substances in a chemical reaction
Converts between the mass of something
Dispersed/dissolved in the solvent
The reactant that is not completely used by the chemical reaction
A substance dissolves in a solvent to make a solution

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The minimum amount of energy to cause a reaction
A measure of the amount of solute that is dissolved in a given quantity of solvents
Explains why different reactions occur at different rates
A free element replaces another in a compound
Dissolves a solute
2 different elements or compounds unite to form a single, more complex substance
A substance dissolves in a solvent to make a solution

18 Clues: Dissolves a solute • Dispersed/dissolved in the solvent • 1 compound splits apart into 2 or more • Converts between the mass of something • A free element replaces another in a compound • The minimum amount of energy to cause a reaction • A substance dissolves in a solvent to make a solution • A substance dissolves in a solvent to make a solution • ...

HC Unit 7 Vocab 2024-01-17

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two atoms that slam together to form a heavier atom
two substances in physical contact with each other exchange no heat energy
amount of energy stored in a bond between atoms in a molecule
quantity of heat required to raise temperature one gram of a substance by one celsius degree
quantities of heat evolved or absorbed during chemical reaction
process in which a gas changes directly to a solid
process of measuring the amount of heat released or absorbed in a chemical reaction

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very simplified representation of the valence shell electrons in a molecule
chemical reactions that release energy
total heat content of a system
values which depend on the state of the substance
average kinetic energy of all the atoms or molecules of that substance
process in which a solid changes into a gas
chemical reactions that absorbs thermal energy
device used to measure the amount of heat involved in a chemical or physical process

15 Clues: total heat content of a system • chemical reactions that release energy • process in which a solid changes into a gas • chemical reactions that absorbs thermal energy • values which depend on the state of the substance • process in which a gas changes directly to a solid • two atoms that slam together to form a heavier atom • ...

Law of Conservation of Mass 2024-10-09

Law of Conservation of Mass crossword puzzle

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If the reactants add up to five grams, the products must add up to __ grams.
The ___of Conservation of Mass states that all matter is conserved in a reaction.
the things on the right side of the chemical equation
Water breaking down into hydrogen and oxygen is a __ change.
The Law of ___ of Mass states that all atoms in must equal all atoms out.
the things on the left side of the chemical equation
Mass is usually measured in __ or kilograms.

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number in front of a chemical formula, like the 2 in 2NaCl
If an equation is ___, the number of atoms on each side is unequal.
the measure of how many atoms are in something
In __ systems, gas could escape.
A __ equation has the same number of atoms on each side.
Water boiling is a ___ change, because it is still H2O.
In __ systems, no atoms can escape from the reaction.
In chemical reactions, ___ break and new ones form between electrons.

15 Clues: In __ systems, gas could escape. • Mass is usually measured in __ or kilograms. • the measure of how many atoms are in something • the things on the left side of the chemical equation • the things on the right side of the chemical equation • In __ systems, no atoms can escape from the reaction. • Water boiling is a ___ change, because it is still H2O. • ...

Year 9 Elements 2021-08-26

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a type of substance that is made up of 2 or more atom types that are chemically joined together
this type of change is irreversible
the substance(s) that are produced in a chemical reaction
a subatomic particle that is found in the nucleus that has no charge
this is the horizontal row that tells us how many electron shells an atom has
a positive test for this gas is if a glowing split relights
a type of substance that is made up of 2 or more substances that are NOT chemically joined together
a positive test for this gas is if a lit splint makes a pop sound
this number tells us the number of protons PLUS the number of neutrons
a subatomic particle that is found in shells around the nucleus and has a negative charge

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this kind of change involves only a substance changing it's state
this number tells us only the number of protons (and therefore electrons as atoms are neutral overall)
a subatomic particle that is found in the nucleus and has a positive charge
a positive test for this gas is if limewater goes cloudy
a type of substance that is made up of only one atom type
this column tells us the number of electrons in the last shell of an atom
the number of electrons in the last shell of silicon
the substance(s) that go into a chemical reaction
the element found in group 1, period 4
the symbol used to show the direction of a chemical reaction

20 Clues: this type of change is irreversible • the element found in group 1, period 4 • the substance(s) that go into a chemical reaction • the number of electrons in the last shell of silicon • a positive test for this gas is if limewater goes cloudy • the substance(s) that are produced in a chemical reaction • a type of substance that is made up of only one atom type • ...

Atoms, Elements & Compounds 2022-02-28

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Evidence of a chemical reaction could be that the temperature goes ____ .
You would find ______ and neutrons in the nucleus
Look at your periodic table. Which element has 3 protons?
What charge does a proton have?
Look at your periodic table. Which element has an atomic mass of 24?
The element with the symbol C
This is formed when two or more atoms are bonded together. (M ________ )
The element with the symbol Pb
The element with the symbol O
Element with the symbol Al
Which subatomic particle has a neutral charge?
Element with the symbol Fe.
Evidence of a chemical reaction could be that there is a change of _______
Evidence of a chemical reaction could be that it gives out _______ (e.g. glow sticks)
Potassium + Oxygen -----> ________

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Dissolving, evaporating and melting are all examples of ________ changes because they can be reversed easily
The element with the symbol Cu
Overall, the nucleus has a ______ charge
When two or more atoms of DIFFERENT elements bond together you would make this. (C ________ )
Lithium + Oxygen ----> __________
Reactions such as Magnesium + Oxygen are known as _______ changes because they are difficult to reverse
Iron + Oxygen ----> _______
This is how many electrons you can fit in the second and third orbitals
We made this when we reacted Magnesium +Oxygen in the bunsen burner
Which subatomic particle would you find in orbitals around the nucleus?
What charge does an electron have?
Most of the mass of an atom is found in the _______ (middle)
This is how many electrons you can fit in the first orbital
Carbon + Oxygen ---> ___________

29 Clues: Element with the symbol Al • Iron + Oxygen ----> _______ • Element with the symbol Fe. • The element with the symbol C • The element with the symbol O • The element with the symbol Cu • The element with the symbol Pb • What charge does a proton have? • Carbon + Oxygen ---> ___________ • Lithium + Oxygen ----> __________ • What charge does an electron have? • ...

Units 7 & 8 Natural Science Crossword 2021-06-28

Units 7 & 8 Natural Science Crossword crossword puzzle

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the component of an electric circuit
mixture a mixture in which the different components cannot be distinguished.
mixture a mixture in which the different components can be distinguished.
substance a type of matter which contains only one type of
the force of attraction exerted by magnets.
the component of an electric circuit which transforms electricity into another type of energy.
reactions these happen when atoms react and group together differently.
a method used to separate solids from liquids in homogeneous mixtures.
charges to move.
a material which does not allow
a method used to separate liquids that have different boiling points in
another word

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a type of matter which contains two or more pure substances.
mixtures.
provides the electricity.
a chemical reaction that happens when objects or substances are burned.
a chemical reaction that happens in some living things, such as yeast and bacteria.
a chemical reaction that happens when some metal substances such as iron combine with oxygen in the presence of water.
a method used to separate substances of different density in heterogeneous mixtures.
an object which can attract other objects made of iron and other magnetic metals,
a closed path through which electricity flows.
a homogeneous mixture.
a material which allows electrical charges to move.
current the flow of electrical charges through materials.
a method used to separate solids from liquids, or solids with different size particles, in heterogeneous mixtures.
a device with a magnetic needle that always points north. We use it to orient
a connecting wire, usually made of copper,wrapped in plastic covering.

27 Clues: mixtures. • another word • charges to move. • a homogeneous mixture. • provides the electricity. • a material which does not allow • the component of an electric circuit • the force of attraction exerted by magnets. • a closed path through which electricity flows. • a material which allows electrical charges to move. • current the flow of electrical charges through materials. • ...

Biology Grade 9 Chp 1 2025-08-08

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…. material another term for reactant.
… cell is cell that helps form a stoma in a leaf, to allow gases in and out
hole in a leaf, formed between two guard cells
soluble carbohydrate which exists as small molecules
green substance that absorbs light, to get energy for photosynthesis.
substance made from elements
nutrients that living organisms need in small amounts for health, growth and repair. Also called mineral salts.
when a plant becomes floppy due to lack of water
…. solution where liquid turns from orange to blue-black when added to starch
green part of a cell that contains chlorophyll.
nutrient needed for energy
substance that changes in a chemical reaction to form products.

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substance made during a chemical reaction.
the spreading out of particles from where there are many (high concentration) to where there are fewer (lower concentration)
sugar made by digesting carbohydrates (in animals) and by photosynthesis (in plants).
…. respiration is respiration that requires oxygen to release energy from glucose
large insoluble carbohydrate made by plants to store energy
a series of chemical reactions in which carbon dioxide and water are converted to glucose and oxygen.
plant cell that is adapted to form hollow tubes to transport water
the loss of water vapor through the stomata on the surface of the leaves
to take in or soak up
…. reaction change in which new substances are produced.
…. cell is plant cell found in roots that is adapted for taking in water quickly

23 Clues: to take in or soak up • nutrient needed for energy • substance made from elements • …. material another term for reactant. • substance made during a chemical reaction. • hole in a leaf, formed between two guard cells • green part of a cell that contains chlorophyll. • when a plant becomes floppy due to lack of water • soluble carbohydrate which exists as small molecules • ...

Physical & Chemical Changes 2025-09-18

Physical & Chemical Changes crossword puzzle

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– State of matter with definite volume but no fixed shape.
– Two or more atoms bonded together.
– The amount of space an object takes up.
– Energy that moves from something warmer to cooler.
– Change from liquid to gas at the surface.
– The ability to cause change or do work.
– To become different in form, appearance, or nature.
– Change from solid directly to gas.
– Reddish-brown chemical change of iron with oxygen.
– A substance formed by a chemical reaction.
– State of matter with no definite shape or volume.
– A substance present at the start of a chemical reaction.
– The smallest part of an element.
– A mixture that looks the same throughout.
– State of matter with definite shape and volume.
– Chemical reaction that gives off heat and light.

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– Change from liquid to solid.
– Two or more substances combined but not bonded.
– A pure substance made of only one type of atom.
– Change from gas directly to solid.
– Anything that has mass and takes up space.
– Change from gas to liquid.
– How much matter is in an object.
– Change from liquid to gas throughout the liquid.
– Change from solid to liquid.
– A physical state of matter, like solid, liquid, or gas.
– A force that holds atoms together in a molecule.
– A high-energy state of matter made of charged particles.
– A substance made of two or more different elements.
– Dark coating that forms on some metals when they react.

30 Clues: – Change from gas to liquid. • – Change from liquid to solid. • – Change from solid to liquid. • – How much matter is in an object. • – The smallest part of an element. • – Change from gas directly to solid. • – Two or more atoms bonded together. • – Change from solid directly to gas. • – The amount of space an object takes up. • – The ability to cause change or do work. • ...

SCIENCE 2019-03-20

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The smallest particle of a chemical element that can exist.
A substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape (unlike a solid) and no fixed volume (unlike a liquid).
A substance that flows freely but is of constant volume, having a consistency like that of water or oil.
a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns.
a thing or person that is the result of an action or process.
A thing that is composed of two or more separate elements; a mixture.
a substance that takes part in and undergoes change during a reaction.
A strong, hard magnetic silvery-grey metal, the chemical element of atomic number 26, much used as a material for construction and manufacturing, especially in the form of steel.
Physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.

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A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
A substance made by mixing other substances together.
Firm and stable in shape; not liquid or fluid.
relating to things perceived through the senses as opposed to the mind; tangible or concrete.
relating to chemistry, or the interactions of substances as studied in chemistry.
Something in side a pencil
A tiny portion of matter.
The spreading of something more widely.
The chemical element of atomic number 13, a light silvery-grey metal.
The chemical element of atomic number 30, a silvery-white metal that is a constituent of brass and is used for coating (galvanizing) iron and steel to protect against corrosion.
The chemical element of atomic number 20, a soft grey metal.

20 Clues: A tiny portion of matter. • Something in side a pencil • The spreading of something more widely. • Firm and stable in shape; not liquid or fluid. • A substance made by mixing other substances together. • The smallest particle of a chemical element that can exist. • The chemical element of atomic number 20, a soft grey metal. • ...

Chemistry 3 Review Crossword 2020-02-13

Chemistry 3 Review Crossword crossword puzzle

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Evil things that float around in the sky and judge me and contribute to global warming
A jedi who lived in the swamps of Degobah
A chemical reaction in which the temperature measured in the reaction would decrease
The scientific standard unit of energy
Using electrolysis to coat an objecting in a metal
A chemical reaction which gives off light
A metal which cannot be mined and must be obtained through electrolysis

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One way of extracting oil from fruits using heating and cooling
Electrolysis of water produces oxygen and ...
A unit of energy found on food packaging
Lowers the activation energy of a reaction
The electrode to which the negative ions move

12 Clues: The scientific standard unit of energy • A unit of energy found on food packaging • A jedi who lived in the swamps of Degobah • A chemical reaction which gives off light • Lowers the activation energy of a reaction • Electrolysis of water produces oxygen and ... • The electrode to which the negative ions move • Using electrolysis to coat an objecting in a metal • ...

Atoms and Molecules 2023-04-10

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a process in which one or more substances are converted to one or more different substances
a reaction in which atoms of the reactant rearrange to create different substances as products
negative charge
a substance that changes when it is combined with another substance in a chemical reaction
smallest part of a substance; cannot be broken down chemically
neutral electric charge (neither positive nor negative)
what holds atoms together in molecules

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a reaction in which a change to the physical properties of a material or substance occurs
positive charge
houses electrically positive protons and electrically neutral neutrons
substances produced at the end of a chemical reaction
the smallest unit of a substance that has all the properties of that substance; can be broken down into atoms

12 Clues: positive charge • negative charge • what holds atoms together in molecules • substances produced at the end of a chemical reaction • neutral electric charge (neither positive nor negative) • smallest part of a substance; cannot be broken down chemically • houses electrically positive protons and electrically neutral neutrons • ...

Plants, Photosynthesis and Respiration 2021-09-03

Plants, Photosynthesis and Respiration crossword puzzle

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The great ___________ event provided the oxygen needed for the atmosphere 2.3 billion years ago
The organelle performing photosynthesis
A green pigment that helps to absorb light for photosynthesis
Plants can convert glucose into ___________ and oils for long-term storage
The organelle performing cellular respiration
An ___________ reaction releases heat
The ____________ tissue describes the tubes used by plants to carry substances inside of it
A ___________ assists in spreading pollen for plants
Spores and ___________ are two forms from which a new plant can grow
A chemical reaction producing carbon dioxide and water for all living things
The type of sugar used in respiration
Animals provide oxygen to their cells and remove carbon dioxide by __________

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A chemical reaction producing glucose and oxygen for plants
Microscopic organisms that carry out photosynthesis in the ocean
An ___________ is a plant with true flower A colourful part of the plant to attract animals
A structure in the cell with a specific function
A type of bacteria that carries out photosynthesis
energy is used by organisms to grow, repair damage, and ____________
transports water in plants
transports nutrients in plants
An ___________ reaction absorbs heat
This plant is the most commonly known pteridophyte
A plant must absorb ___________ in order to photosynthesise

23 Clues: transports water in plants • transports nutrients in plants • An ___________ reaction absorbs heat • An ___________ reaction releases heat • The type of sugar used in respiration • The organelle performing photosynthesis • The organelle performing cellular respiration • A structure in the cell with a specific function • A type of bacteria that carries out photosynthesis • ...

choice board #3 2021-01-25

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cant be created nor destroyed
end of a reaction
represents chemical reaction
arrows on a chemical equation

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written or printed below the line
what make up a product
everything is equal
not everything is equal on both sides
placed in front of chemical formula

9 Clues: end of a reaction • everything is equal • what make up a product • represents chemical reaction • cant be created nor destroyed • arrows on a chemical equation • written or printed below the line • placed in front of chemical formula • not everything is equal on both sides

Crossword Puzzle for Chapter 2 2023-09-20

Crossword Puzzle for Chapter 2 crossword puzzle

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The attraction between like particles within polar substances
A pure substance made of only one kind of atom
An attraction between two atoms as a result of sharing or transferring valence electrons
A naturally occurring catalyst, usually a protein
A pure substance made from two or more elements that are chemically combined
The physical stuff that makes up the universe, anything that occupies space and has mass
A covalently bonded compound containing the element carbon
The attraction of particles in one substance for particles in a different substance
A class of nonpolar organic compounds that are insoluble in water and are used for energy storage and cell membranes in living things
a change of materials into another, new materials with different properties and one or more than one new substances are formed
The tendency of energy to disperse and become less available to do work
A class of simple organic compounds important in living things as a source of both energy and structure
A substance that is present before a chemical reaction and takes part in it, usually shown on the left-hand side of a chemical equation
A substance that can produce hydroxide ions (OH-) or accept hydrogen ions (H+) in solution

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A substance that binds to an enzyme and reduces its activity, thus slowing a chemical reaction that the enzyme catalyzes
The smallest particle of a covalently bonded compound
A class of organic compounds that serve as the building blocks for the information storage molecules DNA and RNA
the process where a solute in gaseous, liquid, or solid phase dissolves in a solvent to form a solutiont
An organic compound comprised of the elements carbon, hydrogen, and oxygen
The substances formed during a chemical reaction, usually indicated on the right side of a chemical equation
the passive movement of molecules or particles from an area of higher concentration to an area of lower concentration
A substance that can produce hydrogen ions (H+) in solution
A class of organic compounds that serve as the building blocks of proteins
A change in a substance that does not change the identity of the substance
Quality of molecules having an uneven distribution of electrical charge, resulting in some regions of the molecule having negative charge while others are positive
The ability to do work
A measurement of the average speed of the particles within a substance
The building block of matter; the smallest possible particle of an element
A substance that changes the rate of a chemical reaction but is not itself used up or affected by the reaction

29 Clues: The ability to do work • A pure substance made of only one kind of atom • A naturally occurring catalyst, usually a protein • The smallest particle of a covalently bonded compound • A covalently bonded compound containing the element carbon • A substance that can produce hydrogen ions (H+) in solution • The attraction between like particles within polar substances • ...

Biochemistry Crossword 2025-09-30

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Macromolecules made mostly from Carbon and Hydrogen atoms; includes fats, oils and waxes.
The center of an atom, which contains the protons and neutrons
Small chemical unit that makes up a polymer.
Compounds that produce Hydroxide ions(OH-) in solution.
Macromolecules containing Hydrogen, Oxygen, Nitrogen, Carbon and Phosphorus.
Pure substance that consists entirely of one type of atom.
Material composed of 2 or more elements or compounds that are physically mixed together but not chemically combined.
Type of mixture in which all the components are evenly distributed.
Type of bond between atoms in which the electrons are shared.
Elements or compounds that are produced in a chemical reaction.
Subunit of which nucleic acids are composed; made up of a 5-carbon sugar, phosphate group and a nitrogen base.
Slight attraction that develops between oppositely charged regions of nearby molecules.
Compounds that produce Hydrogen ions(H+) in solution.
One of the several forms of a single element, which contains the same number of protons but a different numbers of neutrons.
Atom that has a positive or negative charge.
Negatively charged particle: located in the space surrounding the nucleus.
Simple sugar molecules.
Force of attraction between molecules of the same substance.
Attraction between molecules of different kinds of molecules.
Energy that is needed to get a reaction started.
Weak attraction between a hydrogen atom and another atom.

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Macromolecules that contain carbon, oxygen, nitrogen; needed by the body for growth and repair.
Compounds that prevent sharp, sudden changes in pH.
Reactant of an enzyme-catalyzed reaction.
Scale with values from 0 to 14; used to measure the concentration of H+ ions in a solution.
Substance that is dissolved in a solution.
Process that changes, or transforms, one set of chemicals into another set of chemicals.
Substance that speeds up the rate of a chemical reaction.
Compounds made of Carbon, Hydrogen, Oxygen atoms; type of nutrient that is the major source of energy for the body.
Compound with an amine group on one end and a carboxyl group on the other end.
Basic unit of matter
Mixture of water and nondissolved material.
Elements or compounds that enter into a chemical reaction.
Substance formed by chemical combination of 2 or more elements in definite proportions
Molecules composed of many monomers.
Chemical bonds formed when one or more electrons are transferred from one atom to another.
Smallest unit of most compounds that displays all the properties of that compound.
Dissolving substance in a solution.
Protein catalyst that speeds up the rate of specific biological reactions.

39 Clues: Basic unit of matter • Simple sugar molecules. • Dissolving substance in a solution. • Molecules composed of many monomers. • Reactant of an enzyme-catalyzed reaction. • Substance that is dissolved in a solution. • Mixture of water and nondissolved material. • Small chemical unit that makes up a polymer. • Atom that has a positive or negative charge. • ...

Enzymes 2021-10-10

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the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
the pH resulting in maximal activity of a particular enzyme.
process modifying the molecular structure of a protein.
surface or material from which an organism grows or obtains its nourishment.
disruption of a chemical pathway due to one chemical inhibiting the effect of another by competing with it for binding or bonding.
increases the frequency with which the enzyme and substrate collide.
assumes that the active site of the enzyme and the substrate are equal shaped.

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a molecule that binds to an enzyme and decreases its activity.
type of inhibition that reduces the peak rate of a chemical reaction without changing the apparent binding affinity of the catalyst for the substrate.
will speed up the reaction.
class of macromolecules that perform a diverse range of functions for the cell.
a region on the surface of an enzyme whose shape permits binding only of a specific molecular substrate that then undergoes catalysis.
organic molecules that act as catalysts for chemical reactions.
the temperature at which an enzyme shows its highest activity.
a model for enzyme-substrate interaction.

15 Clues: will speed up the reaction. • a model for enzyme-substrate interaction. • process modifying the molecular structure of a protein. • the pH resulting in maximal activity of a particular enzyme. • a molecule that binds to an enzyme and decreases its activity. • the temperature at which an enzyme shows its highest activity. • ...

Chapter 7 Key Terms 2022-01-11

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A measure of the acidity and alkalinity of a substance; the pH scale has a range of 0 to 14, with 7 being a neutral. A pH below 7 is an acidic solution; a pH above 7 is an alkaline solution.
Also known as redox; chemical reaction in which the oxidizing agent is reduced and the reducing agent is oxidized.
liquids that are not capable of being mixed together to form stable solutions.
Easily absorbs moisture; in chemistry terms, capable of combining with or attracting water (water-loving).
The study of substances that do not contain the element carbon, but may contain the element hydrogen.
Unstable molecules that cause inflammation, disease, and biochemical aging in the body, especially wrinkling and sagging of the skin. Free radicals are super oxidizers that cause an oxidation reaction and produce a new free radical in the process that are created by highly reactive atoms or molecules (often oxygen).
When an acid is mixed with an alkali in equal proportions to neutralize each other and form water and a salt.
Characteristics that can be determined without a chemical reaction and that do not cause a chemical change in the identity of the substance.
The process through which oxygen is subtracted from or hydrogen is added to a substance through a chemical reaction.
A colorless gaseous element that makes up about four-fifths of the air in our atmosphere and is found chiefly in ammonia and nitrates.
Matter that has volume, no definite shape and will take shape of its container, such as water.
The abbreviation used for potential hydrogen; relative degree of acidity and alkalinity of a substance. pH represents the quantity of hydrogen ions.
most abundant of all substances, comprising about 75 percent of the Earth’s surface and about 65 percent of the human body.
A substance that dissolves the solute to form a solution.
Acronym for surface active agent; reduce surface tension between the skin and the product to increase product spreadability; allow oil and water to mix, or emulsify.
The smallest chemical components (often called particles) of an element that still retains the properties of that element.
A chemical combination of two or more atoms.
Having an affinity for or an attraction to fat and oils (oil-loving).
Change in the chemical properties of a substance that is the result of a chemical reaction in which a new substance or substances are formed that have properties different from the original.
A uniform mixture of two or more mutually miscible substances.
Substances that have a pH below 7.0, taste sour, and turn litmus paper from blue to red.
An unstable physical mixture of two or more immiscible substances (substances that normally will not stay blended) plus a special ingredient called an emulsifier.
A method of displaying data in multiples of 10.
Unstable mixtures of two or more immiscible substances.
Also known as bases; compounds that react with acids to form salts; have a pH above 7.0 (neutral), taste bitter, and turn litmus paper from red to blue.
An anion (an ion with a negative electrical charge) with one oxygen and one hydrogen atom.
Chemical compound of hydrogen and oxygen; a colorless liquid with a characteristic odor and a slightly acid taste.

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Combinations of two or more atoms of different elements united chemically with a fixed chemical composition, definite proportions, and distinct properties.
A state of matter that is rigid with a definite size and shape, such as ice.
An ion with a negative electrical charge.
Science that deals with the composition, structures, and properties of matter and how matter changes under different conditions.
Combination of two or more substances united physically, not chemically, without a fixed composition and in any proportions.
Colorless, odorless, tasteless gas; the lightest element known.
The most abundant element on Earth.
Rapid oxidation of any substance, accompanied by the production of heat and light.
Either the addition of oxygen or the loss of hydrogen; a chemical reaction that combines a substance with oxygen to produce an oxide.
Study of substances that contain carbon.
Droplets of water dispersed in an oil.
The gaseous mixture that makes up the Earth’s atmosphere. It is odorless, colorless, and generally consists of about 1 part oxygen and 4 parts nitrogen by volume.
Oil droplets dispersed in a water with the aid of an emulsifying agent.
Protective barrier of lipids and secretions on the surface of the skin.
Matter without a definite shape or size. No fixed volume or shape; takes the shape of its container.
Change in the form or physical properties of a substance without a chemical reaction or the formation of a new substance.
Used to stabilize skin care products by preventing oxidation that would otherwise cause a product to turn rancid and decompose. They are vitamins such as A, C, and E, which can be applied topically in products or taken internally to increase healthy body functions.
Those characteristics that can only be determined by a chemical reaction and a chemical change in the identity of the substance.
To combine or cause a substance to combine with oxygen.
Also known as compounds; a chemical combination of two or more atoms of different elements in definite (fixed) proportions.
Chemical reaction in which the oxidizing agent is reduced and the reducing agent is oxidized.
Any substance that occupies space and has mass (weight).
Ion with a positive electrical charge.
Molecule containing two or more atoms of the same element in definite (fixed) proportions.
The separation of an atom or molecule into positive or negative ions.
A substance that dissolves another substance to form a solution.
The three different physical forms of matter: solid, liquid, and gas.
Capable of being mixed; liquids that are mutually soluble, meaning that they can be mixed together to form stable solutions.
An atom or molecule that carries an electrical charge.
The simplest form of matter; cannot be broken down into a simpler substance without loss of identity.

57 Clues: The most abundant element on Earth. • Droplets of water dispersed in an oil. • Ion with a positive electrical charge. • Study of substances that contain carbon. • An ion with a negative electrical charge. • A chemical combination of two or more atoms. • A method of displaying data in multiples of 10. • An atom or molecule that carries an electrical charge. • ...

CHEMICAL REACTIONS AND EQUATIONS 2023-09-28

CHEMICAL REACTIONS AND EQUATIONS crossword puzzle

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Reaction in which heat is released along with the formation of products.
The substances which take part in a chemical reaction.
A process in which the original substance loses its nature and identity to form a new substance with different properties.
Loss of electrons
Type of decomposition carried out by passing electricity.
Gain of electrons
A process in which metal is deteriorated by the action of air, moisture, chemicals, etc.

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A type of decomposition carried out by heating.
The substances which are formed in a chemical reaction.
Reaction in which a compound splits into two or more simpler substances.
When decomposition is carried out in the presence of sunlight.
Reactions which need energy in the form of heat, light or electricity to break reactants.
The reaction in which two or more reactants combine to form a single product.
The process of slow oxidation of oil and fat, present in food materials resulting in foul odour and taste.
The reactions in which a more reactive element displaces a less reactive element from its salt solution.

15 Clues: Loss of electrons • Gain of electrons • A type of decomposition carried out by heating. • The substances which take part in a chemical reaction. • The substances which are formed in a chemical reaction. • Type of decomposition carried out by passing electricity. • When decomposition is carried out in the presence of sunlight. • ...

CWP Chapter 9/10 2025-10-28

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Definition for a type of reaction where heat is gained by the system from its surroundings
A _________ ion is one not involved in the reaction
Part of the universe where a chemical process occurs
Type of reaction where electrons are transferred from one atom to another
Definition of the maximal amount of solute that dissolves in a solvent at a specified temperature
Name of compound that when dissolved in water increases electrical conductivity
Term for amount of heat energy exchanged between system and surroundings in a chemical process
Which of the following is a weak acid, perchloric, nitric, or acetic?

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Expression of concentration in units of mol of solute per liter of solution
The standard heat of ________ defines the heat associated with the creation of 1 mole of compound from its elements at standard conditions
Method for measuring temperature changes to determine heats associated with chemical reactions
Thermochemical constant defining the amount of energy required to raise the temperature of 1g of substance 1oC (2 words)
Name of a protonated water molecule
Name of chemical equation expressed were none of the compounds are dissociated

14 Clues: Name of a protonated water molecule • A _________ ion is one not involved in the reaction • Part of the universe where a chemical process occurs • Which of the following is a weak acid, perchloric, nitric, or acetic? • Type of reaction where electrons are transferred from one atom to another • ...

Chapter 13 Ben Ruetz 2020-02-26

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there is a net absorption of energy
if changed, the equilibrium shifts to oppose change, until new equilibrium is reached
there is a net release of energy
when reaction and it’s reverse act at the same rate

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when there is a plus sign on the right side of the chemical equation
is a substance that lowers the activation energy of a chemical reaction
No atoms are gained or lost during any reaction
is the minimum energy required to overcome the initial breaking of bonds in reactants
when there is an oxide in the chemical eqution
when there is a plus sign on the left side of the chemical equation

10 Clues: there is a net release of energy • there is a net absorption of energy • when there is an oxide in the chemical eqution • No atoms are gained or lost during any reaction • when reaction and it’s reverse act at the same rate • when there is a plus sign on the left side of the chemical equation • when there is a plus sign on the right side of the chemical equation • ...

Compounds, Molecules, and Chemical Equations Review! 2023-01-12

Compounds, Molecules, and Chemical Equations Review! crossword puzzle

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Cannot be created or destroyed
Atoms at the end of a chemical reaction
A group of atoms bound together
Releases H cations in water
Latin word for "four"
Number in front of molecule to show how many

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Atoms at the start of a chemical reaction
Different elements joined together
Totally neutral pH value
Substance made of only one type of atom
Another name for "base"
Latin word for "six"
Arrow that means "creates"

13 Clues: Latin word for "six" • Latin word for "four" • Another name for "base" • Totally neutral pH value • Arrow that means "creates" • Releases H cations in water • Cannot be created or destroyed • A group of atoms bound together • Different elements joined together • Substance made of only one type of atom • Atoms at the end of a chemical reaction • ...

Redox Time Travel 2021-06-20

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The _________ number or state as the charge of an element in a compound if electron transfer occurs in an atom to form a chemical bond with another atom
The electrode where the reduction reaction takes place in electrolytic cell
Substance agent that is oxidised in a redox reaction with other substances
Shorthand cell ________ representation of a chemical cell with the anode on the left and the cathode on the right is separated by two vertical lines representing a salt bridge or porous pot
Substance agent that is reduced in a redox reaction with other substances
Reaction that takes place when a reactant gains oxygen, loses hydrogen, loses electron and reduced oxidation number
Redox reaction in which there is an oxidation process of iron to hydrated iron(III)oxide, Fe2O3.xH2O
Reaction that takes place when a reactant loses oxygen, gains hydrogen, gains electron and increased oxidation number
Process of decomposition of a compound in a molten state or an aqueous solution to its constituent elements when electric current is passed through it

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The electrode terminal where the voltaic cell redox reaction takes place in anode
Electrode _________ is the _________ (voltage) produced when equilibrium is established between metal M & the aqueous solution containing metal M ions in a half-cell
The electrode where the oxidation reaction takes place in electrolytic cell
Substance agent that is reduced in a redox reaction with other substances
Substance agent that is oxidised in a redox reaction with other substances
Potential difference produced in half-cells under conditions with a concentration of ion in an aqueous solution (1.0 moldm-3) at 25 degrees celcius/298K, 1 atm pressure/101 kPa & coupled with ________ hydrogen electrode of platinum as inert electrode when half-cell is not a metal electrode
The electrode terminal where the voltaic cell redox reaction takes place in cathode
Chemical reactions that involve oxidation & reduction that occur simultaneously

17 Clues: Substance agent that is reduced in a redox reaction with other substances • Substance agent that is reduced in a redox reaction with other substances • Substance agent that is oxidised in a redox reaction with other substances • Substance agent that is oxidised in a redox reaction with other substances • ...

Redox Time Travel 2021-06-20

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Redox reaction in which there is an oxidation process of iron to hydrated iron(III)oxide, Fe2O3.xH2O
Substance agent that is reduced in a redox reaction with other substances
Substance agent that is oxidised in a redox reaction with other substances
The electrode where the reduction reaction takes place in electrolytic cell
Process of decomposition of a compound in a molten state or an aqueous solution to its constituent elements when electric current is passed through it
Reaction that takes place when a reactant gains oxygen, loses hydrogen, loses electron and reduced oxidation number
The electrode where the oxidation reaction takes place in electrolytic cell
Reaction that takes place when a reactant loses oxygen, gains hydrogen, gains electron and increased oxidation number
Substance agent that is oxidised in a redox reaction with other substances

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The electrode terminal where the voltaic cell redox reaction takes place in cathode
The _________ number or state as the charge of an element in a compound if electron transfer occurs in an atom to form a chemical bond with another atom
Electrode _________ is the _________ (voltage) produced when equilibrium is established between metal M & the aqueous solution containing metal M ions in a half-cell
Chemical reactions that involve oxidation & reduction that occur simultaneously
Shorthand cell ________ representation of a chemical cell with the anode on the left and the cathode on the right is separated by two vertical lines representing a salt bridge or porous pot
Substance agent that is reduced in a redox reaction with other substances
The electrode terminal where the voltaic cell redox reaction takes place in anode
Potential difference produced in half-cells under conditions with a concentration of ion in an aqueous solution (1.0 moldm-3) at 25 degrees celcius/298K, 1 atm pressure/101 kPa & coupled with ________ hydrogen electrode of platinum as inert electrode when half-cell is not a metal electrode

Balancing Equations Vocabulary 2022-03-29

Balancing Equations Vocabulary crossword puzzle

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The number of atoms of the element (small #)
The substances you start with
A rearrangement of atoms
Chemical equations need to be balanced to satisfy this
The substances you end with

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This has the same number of each type of atom on both sides of the arrow
A number placed in front of a term to indicate how many molecules take part in the reaction (big #
The combination of elements that are in a substance
Solid, liquid, gas, and aqueous are all examples of these
A written representation of a chemical reaction
This tells you that the reactants became the product through a chemical reaction

11 Clues: A rearrangement of atoms • The substances you end with • The substances you start with • The number of atoms of the element (small #) • A written representation of a chemical reaction • The combination of elements that are in a substance • Chemical equations need to be balanced to satisfy this • Solid, liquid, gas, and aqueous are all examples of these • ...

Chemistry & Chemical Safety 2025-05-20

Chemistry & Chemical Safety crossword puzzle

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Sweet, colorless, oily substance used as a solvent and as a moisturizer in skin and body creams
Substances that allow oil and water to mix, or emulsify
Also known as bases; compounds that react with acids to form salts
Prolonged, repeated, or long-term exposure that can cause sensitivity
Characteristics that can be determined only by a chemical reaction and involve a chemical change in the substance
Molecule containing two or more atoms of the same element in definite (fixed) proportions
Subatomic particles with a negative charge
Also known as compounds; a chemical combination of two or more atoms of different elements in definite (fixed) proportions
A stable, uniform mixture of two or more substance
The basic unit of matter, with a nucleus at the center surrounded by negatively charged electrons that move around the nucleus in orbits.
A substance that releases oxygen
Liquids that are mutually soluble, meaning that they can be mixed together to form stable solutions
Chemical reaction that requires the absorption of energy or heat from an external source for the reaction to occur
A chemical combination of matter in definite (fixed) proportions
A substance that may cause cancer but not always
Having an affinity for or an attraction to fat and oils (oil-loving)
A physical combination of matter in any proportion
A substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound
Alkaline substances used to neutralize acids or raise the pH of many hair products
Liquids that are not capable of being mixed together to form stable solutions
A change in the form or physical properties of a substance, without a chemical reaction or the creation of a new substance
The separation of an atom or molecule into positive and negative ions
A very strong alkali used in chemical products and cleaners; commonly known as lye

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A solution that has a pH above 7
Alcohols that evaporate easily, such as isopropyl alcohol
An ion with a positive electrical charge
An unstable physical mixture of two or more immiscible substances (substances that normally will not stay mixed) plus a special ingredient called an emulsifier
Characteristics that can be determined without a chemical reaction and do not involve a chemical change in the substance
A solution that has a pH below 7
The science that deals with the composition, structures, and properties of matter and how matter changes under different conditions.
A substance that causes or is believed to cause cancer
Easily absorbs moisture; in chemistry terms, capable of combining with or attracting water (water-loving)
Substances that should not be mixed or even stored near each other
Subatomic particles with a positive charge
Rapid Oxidation of a substance accompanied by the production of heat and light
Special type of oil used in hair conditioners, water-resistant lubricants for the skin, and nail polish dryers
The simplest form of chemical matter and contains only one type of atom.
The substance that dissolves the solute and makes the solution
An atom or molecule that carries an electrical charge
Chemical reaction that releases a significant amount of heat
Required by law for all products sold; include safety information about products compiled by the manufacturer, including hazardous ingredients, safe use handling procedures, proper disposal guidelines, and precautions to reduce the risk of accidental harm or overexposure
A colorless liquid or white crystals with a strong, unpleasant odor that is used in permanent waving solutions
Colorless gas with a pungent odor that is composed of hydrogen and nitrogen
An ingredient that brings two normally incompatible materials together and binds them into a uniform and fairly stable mixture
A change in the chemical composition or makeup of a substance
Any substance that occupies space and has mass (weight).
Subatomic particles with no charge
Unstable physical mixtures of undissolved particles in a liquid
A chemical combination of two or more atoms in definite (fixed) proportions
An ion with a negative electrical charge
An alpha hydroxy acid used in exfoliation and to lower the pH of products
The substance that is dissolved in a solution

52 Clues: A solution that has a pH above 7 • A solution that has a pH below 7 • A substance that releases oxygen • Subatomic particles with no charge • An ion with a positive electrical charge • An ion with a negative electrical charge • Subatomic particles with a positive charge • Subatomic particles with a negative charge • The substance that is dissolved in a solution • ...

Unit 10 (Redox) REVIEW 2023-05-07

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Electrolytic cells will always require a _______.
When oxidation occurs the oxidation number will ________.
Reduction occurs at which cathode?
A type of chemical reaction that will always be considered a "redox" reaction.
Loss of electrons
For ions to travel in an electrochemical cell.

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For electrons to travel on in an electrochemical cell.
When reduction occurs the oxidation number will ________.
Type of electrochemical cell that converts chemical energy to electrical energy
Type of electrochemical cell that converts electrical energy to chemical energy
Gain of electrons
Oxidation occurs at which electrode?

12 Clues: Gain of electrons • Loss of electrons • Reduction occurs at which cathode? • Oxidation occurs at which electrode? • For ions to travel in an electrochemical cell. • Electrolytic cells will always require a _______. • For electrons to travel on in an electrochemical cell. • When reduction occurs the oxidation number will ________. • ...

Chapter 8.1 Challenge 2019-07-29

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cofactor needed for succinate dehydrogenase in the Kreb's cycle.
nonprotein portion of an enzyme
speeds up the rate of a chemical reaction without being used up in that reaction
enzyme inhibition when another substance binds to the substrate's active site
breakdown of large molecules
another name for a dehydration synthesis reaction
larger enzymes may have this level of protein organization
binds to enzyme's active site

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chemically unstable enzyme
enzyme transported extracellularly
enzyme inhibition involving enzymes with two binding sites
energy needed to begin a reaction
weak bonds that maintain shape of apoenzyme are broken
term used to describe an enzyme that is always present
protein portion of an enzyme
enzyme retained intracellularly
molecules required for a successful hydrolysis reaction
build-up of complex molecules from simpler precursors

18 Clues: chemically unstable enzyme • breakdown of large molecules • protein portion of an enzyme • binds to enzyme's active site • nonprotein portion of an enzyme • enzyme retained intracellularly • energy needed to begin a reaction • enzyme transported extracellularly • another name for a dehydration synthesis reaction • build-up of complex molecules from simpler precursors • ...

Thermochemistry 2023-05-02

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Chemical reaction in which heat is absorbed
Heat Energy
water by 1°C, or about 4.2 joules
The result of the movement of tiny particles called atoms, molecules, or ions
A substance that takes part in an undergoes change during a reaction
The species formed from chemical reactions
The energy an object or particle has due to its motion
Units
The energy that comes from a source and travels through space at the speed of light
The energy required to raise the temperature of 1 gram of a substance by 1°C
The quantity of heat necessary to change 1 gram of solid to a liquid without temperature changes
the amount of heat needed to turn 1 gram of a liquid into vapor, without a rise in the temperature of the liquid

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The unit of temperature on the Celsius scale in the International System
A unit of measurement for temperature (thermodynamics)
solids, liquids and gases
in a state
The study of energy changes that occur during chemical reactions and
The unit of work or energy in the International System of Units
Chemical reaction in which heat is given off
The process by which heat is transferred by movement of a heated fluid, such as air or water
an energy unit equal to the approximate amount of energy required to raise 1 g
The process by which heat is transferred from the hotter end to the colder end of an object
The measurement of heat changes

23 Clues: Units • in a state • Heat Energy • solids, liquids and gases • The measurement of heat changes • water by 1°C, or about 4.2 joules • The species formed from chemical reactions • Chemical reaction in which heat is absorbed • Chemical reaction in which heat is given off • A unit of measurement for temperature (thermodynamics) • ...

Phase Change Vocabulary Crossword 2024-08-26

Phase Change Vocabulary Crossword crossword puzzle

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- A state of matter at the second lowest energy level in which molecules have a definite volume but no definite shape
- A state of matter at the third lowest energy level where molecules have no definite shape and no definite volume
- A reaction that changes the chemical form of the molecules
- The solids that form in a liquid in a chemical reaction
- A physical characteristic describing how matter reflects light (how shiny it is)
- A solid changing into a gas
- A liquid changing into a solid
- A process where matter changes from one state to another
- A liquid changing into a gas
- the study of how matter interacts with its environment and the changes produced

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- the study of motion and energy of matter
- A gas changing into a solid
- A reaction that does not change the chemical form of the molecules on its physical characteristics
- A state of matter at the lowest energy level in which molecules have a definite shape and definite volume
- the study of life
- A physical characteristic describing how hard a material is in comparison to other materials
- the study of Earths process and celestial bodies (astronomy)
- A gas changing into a liquid
- The ability to do work through physical or chemical means
- A solid changing into a liquid
- A state of matter at the highest energy level where molecules have no definite shape and no definite volume and electrons are not bound to any atom and roam freely

21 Clues: - the study of life • - A gas changing into a solid • - A solid changing into a gas • - A gas changing into a liquid • - A liquid changing into a gas • - A liquid changing into a solid • - A solid changing into a liquid • - the study of motion and energy of matter • - The solids that form in a liquid in a chemical reaction • ...

CHEMISTRY 2025-10-02

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term used to describe oxisides organic materials (usually food)
most gas found in air composition
a substance that oxidises another substance during a redox reaction and it self reduced during the reaction (9 letter, 5 letters))
chemical reaction in which a substance reacts with oxygen (exothermic reactions)
element that has symbol C (6 letters)

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chemical reaction by which biological cells release the energy stored in glucose for use by the cell
fossil fuel formed from the remains of ancient marine plants/animals that can be used as fuel for transportations
reaction in which oxygen is added to an element/compound
reaction involving both reduction and oxidation
missing electron during redox reaction (4 letters)

10 Clues: most gas found in air composition • element that has symbol C (6 letters) • reaction involving both reduction and oxidation • missing electron during redox reaction (4 letters) • reaction in which oxygen is added to an element/compound • term used to describe oxisides organic materials (usually food) • ...

CHEMISTRY 2025-10-02

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term used to describe oxisides organic materials (usually food)
most gas found in air composition
a substance that oxidises another substance during a redox reaction and it self reduced during the reaction (9 letter, 5 letters))
chemical reaction in which a substance reacts with oxygen (exothermic reactions)
element that has symbol C (6 letters)

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chemical reaction by which biological cells release the energy stored in glucose for use by the cell
fossil fuel formed from the remains of ancient marine plants/animals that can be used as fuel for transportations
reaction in which oxygen is added to an element/compound
reaction involving both reduction and oxidation
missing electron during redox reaction (4 letters)

Chapter 13 Vocabulary Afrodite Poulos 2016-10-10

Chapter 13 Vocabulary Afrodite Poulos crossword puzzle

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Forming bonds ________ energy
A substance that is the result of a chemical change
A substance that undergoes chemical change
Plus sign has to be on product side of arrow
must be added to break bonds
Little number to the right of the element or compound
Chemical reactions rearrange...

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Energy is transferred to reactions from surroundings (usually cool)
Energy transfers from reactants to surroundings (usually as heat)
A single element reacts with a compound and takes the place of another single element in that compound
The energy stored in molecules that can be released during a reaction
The _____ in a chemical reaction always points to the product
Big number to the left of the element or compound
Plus sign has to be on reactant side of arrow
A compound and an oxidant is reacted to produce heat and a new product

15 Clues: must be added to break bonds • Forming bonds ________ energy • Chemical reactions rearrange... • A substance that undergoes chemical change • Plus sign has to be on product side of arrow • Plus sign has to be on reactant side of arrow • Big number to the left of the element or compound • A substance that is the result of a chemical change • ...

Honors Biology - Chapter 2: Chemistry of Life - Vocabulary 2016-09-05

Honors Biology - Chapter 2: Chemistry of Life - Vocabulary crossword puzzle

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attractive force that holds molecules of a single substance together
atoms of the same element that have a different number of neutrons
attractive force that holds atoms together
attraction between molecules that results in the rise of the surface of a liquid when in contact with a solid
the OH- ion created when one water molecule pulls apart another water molecule
protein or RNA molecule that speeds up metabolic reactions without being permanently changed or destroyed
solution that has a greater number of hydroxide ions than hydronium ions
the amount of solute dissolved in a fixed amount of solvent
solution in which no more solute can dissolve
center of the atom, makes up most of the mass, contains protons and neutrons
amount of energy needed to start a reaction
substances that cannot be broken down chemically into simpler kinds of matter
reduce the amount of activation energy needed for a reaction to take place
simplest particle of an element that retains all the properties of that element
compares the relative concentrations of hydronium ions and hydroxide ions in a solution, ranges from 0-14, 0 is very acidic, 7 is neutral, & 14 is very basic
mixture in which one or more substances are uniformly distributed in another substance
chemical substances that neutralize small amounts of either an acid or a base added to a solution
atom or molecule with an electrical charge
forms when 2 atoms share one or more pairs of electrons
simplest part of a substance that retains all of the properties of that substance
equal to the total number of protons and neutrons of an atom

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the ability to do work
substance dissolved in the solvent
atoms of 2 or more elements that are combined in fixed proportions
particle that has no charge
solution that has a greater number of hydronium ions than hydroxide ions
starting substances in a chemical reaction, shown on the left side of a chemical equation
attractive force between oppositely charged ions which form when electrons are transferred from one atom to another
attractive force between a hydrogen molecule with a with a partial positive charge and another atom or molecule with a partial or full negative charge
attractive force between two particles of different substances
solution in which water is the solvent
the H3O+ ion created when a free H+ ion reacts with a water molecule
one or more substances change to produce one or more different substances
reaction in which a reactant gains one or more electrons becoming more negative in charge
reaction in which a reactant loses one or more electrons becoming more positive in charge
the quantity of matter an object has
3-dimensional region around a nucleus that indicated the probable location of an electron
reaction in which electrons are transferred between atoms
anything that occupies space and has mass
molecule with unevenly distributed charges
negatively charged particle
number of protons in an atom
all of the chemical reactions that occur in an organism
positively charged particle
substances formed during a chemical reaction, shown on the right side of a chemical equation
Biology Chapter 2: Chemistry of Life – Vocabulary
substance in which the solute is dissolved

47 Clues: the ability to do work • particle that has no charge • negatively charged particle • positively charged particle • number of protons in an atom • substance dissolved in the solvent • the quantity of matter an object has • solution in which water is the solvent • anything that occupies space and has mass • attractive force that holds atoms together • ...

Chapter 2 2019-01-17

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a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
acid
any of a class of sugars whose molecules contain two monosaccharide residues.
amino acid
also known as Bohr’s atomic model
A reaction where bonds are broken.
a bond involving the sharing of electrons netween atoms
the outermost shell of an atom containing the valence electrons.
Basic unit of a chemical element.
anything that has mass and takes up space
a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
a substance that accepts hydrogen ions
spheroproteins
A number equal to the sum of all the neutrons and the protons in an atom's nucleus.
an example of monosaccharides
a radioactive isotope.
include wax and oil
antibodies is an example of this
chemical reaction in which an acid and a base react quantitatively with each other.
molecules consist of many nucleotides linked in a long chain.
a usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances. Creates a new substance.
ribonucleic acid
the energy of a body or a system with respect to the motion of the body or of the particles in the system.
power
structure of dna
particle with a neutral charge
another term would be inert energy
a carbohydrate whose molecules consist of a number of sugar molecules bonded together.
a polysaccharide
a lipid containing a phosphate group in its molecule
a solution that resists changes in pH when acid or alkali is added to it.
organic compound composed of carbon, hydrogen, and oxygen; includes starches, sugars, and glucose.
a group of atoms bonded together
Also known as Electron shells
Adenosine triphosphate
protein
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei

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the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
a measure of the hydorgen ion concentration of a solution
also known as triglycerides
letters that represent an element
an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
the emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.
the ionized or ionizable constituents of a living cell, blood, or other organic matter.
fibrous proteins
Carbon-containing compound.
created in 1869
Positive subatomic particle.
a substance that liberates hydrogen ions when in an aqueous solution.
Energy form directly involved in putting the matter into motion.
Composed of 2 or more elements.
a region on an enzyme that binds to a protein or other substance during a reaction.
the base
Lack of carbon; compound.
a change from one state (solid or liquid or gas) to another without a change in chemical composition
process in which molecules are formed, changed, or broken down.
A bond that forms when electrons are transferred from one atom to another.
energy form stored in the bonds of chemicals
a lipid
electrical charge
atomic mass
one of a class of substances that cannot be separated into simpler substances by chemical means.
single sugar
also known as Rutherford atomic model
a lipid
A reaction where 2 or more molecules or atoms combine to form a larger and more complex molecule.
energy that travels by waves or particles
A reaction where bonds are broken and combined.
form the basic structural unit of nucleic acids
particle with a negative charge
deoxyribonucleic acid

72 Clues: acid • power • a lipid • a lipid • protein • the base • amino acid • atomic mass • single sugar • spheroproteins • created in 1869 • fibrous proteins • ribonucleic acid • structure of dna • a polysaccharide • electrical charge • include wax and oil • deoxyribonucleic acid • a radioactive isotope. • Adenosine triphosphate • Lack of carbon; compound. • also known as triglycerides • Carbon-containing compound. • ...

chemistry 2017-03-23

Across

a substance that increases the rate of a reaction but is not used up in the reaction
a mixture of a solute dissolved in a solvent such as water
a small number of active molecules (such as acid) in a solution
this refers to an acid solution with a high concentration of hydrogen ions
a reaction that involves the breakdown of a compound into simpler substances
a reaction that involves oxygen and releases light and heat energy

Down

an ion that does not take part in a chemical reaction
a theory stating that the particles involved in a chemical reaction must collide in order to react
a reaction in which and acid and a base combine to produce a metal salt and water
an object or substance that can be broken down by bacteria, fungi and other living organisms
an insoluble compound formed in a precipitation reaction

11 Clues: an ion that does not take part in a chemical reaction • an insoluble compound formed in a precipitation reaction • a mixture of a solute dissolved in a solvent such as water • a small number of active molecules (such as acid) in a solution • a reaction that involves oxygen and releases light and heat energy • ...

Juan David Suarez 2022-01-17

Across

consisting of many different and connected parts
the external form, contours, or outline of someone or something
zone which make chemical reaction.
in chemistry, any substance that increases the rate of a reaction without itself being consumed.
a strong covering holding the pages of a book together.
are molecules that are very inportant for your body we can find in meer.

Down

the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.
is a person who is used by a fashion designer or clothing manufacturer to check the fit.
the base on which an organism lives the soil is the substrate of most seed plants.
happens when one chemical substance is transformed into one or more different substances
molecule organic which make a chemical reaction

11 Clues: zone which make chemical reaction. • molecule organic which make a chemical reaction • consisting of many different and connected parts • a strong covering holding the pages of a book together. • the external form, contours, or outline of someone or something • are molecules that are very inportant for your body we can find in meer. • ...

Chemistry of Living Things UG1 checkpoint 2022-08-09

Chemistry of Living Things UG1 checkpoint crossword puzzle

Across

the starting materials in a chemical reaction
a chemical reaction that absorbs thermal energy from its surroundings (it feels cold to touch)
a change when no new substance is formed
a change when a new substance is formed

Down

the burning of a fuel, where it reacts with oxygen to create heat and light
a process in which one or more reactants are converted to one or more different substances
the process by which food, in the form of sugar (glucose), is transformed into energy within cells
a substance that is formed as the result of a chemical reaction
a chemical reaction that produces heat (it feels hot to touch)

9 Clues: a change when a new substance is formed • a change when no new substance is formed • the starting materials in a chemical reaction • a chemical reaction that produces heat (it feels hot to touch) • a substance that is formed as the result of a chemical reaction • the burning of a fuel, where it reacts with oxygen to create heat and light • ...

Chemistry of Living Things UG1 checkpoint 2022-08-09

Across

the starting materials in a chemical reaction
a chemical reaction that absorbs thermal energy from its surroundings (it feels cold to touch)
a change when no new substance is formed
a change when a new substance is formed

Down

the burning of a fuel, where it reacts with oxygen to create heat and light
a process in which one or more reactants are converted to one or more different substances
the process by which food, in the form of sugar (glucose), is transformed into energy within cells
a substance that is formed as the result of a chemical reaction
a chemical reaction that produces heat (it feels hot to touch)

BIOCHEMISTRY 2015-02-01

Across

it is a measure to determine the acidity or alkalinity of a solution or a substance
water-soluble compound that reacts with acid
a chemical substance formed as a result of a chemical reaction
A type of homogenous mixture in which the particles of one or more substances (the solute) are distributed uniformly throughout another substance (the solvent)
A sugar (carbohydrate) composed of two monosaccharides, thus yields two monosaccharide molecules on complete hydrolysis
ACID Any of the group of a long chain of hydrocarbon derived from the breakdown of fats (through a process called hydrolysis). It has a single carboxylic group andaliphatic tail.
(usually water molecules) through a semipermeable membrane from an area of low solute concentration to an area of high solute concentration.
Any of a class of carbohydrates formed by repeating units linked together by glycosidic bonds
The basic building block of nucleic acids, It is an organic compound made up of nitrogenous base, a sugar, and a phosphate group
An extremely small particle or substance, especially at cellular or structural leve
the act or state of adhering; state of being adhered or united
ACID Any of the group of complex compounds consisting of linear chains of monomeric nucleotides whereby each monomeric unit is composed of phosphoric acid, sugar and nitrogenous base,
The act, state or process of sticking together
An energy-rich compound made up of a single molecule of glycerol and three molecules of fatty acid, and serves as a major component of animal and plant oils and fats
molecules that catalyze (i.e., increase the rates of) chemical reactions
A substance consisting of atoms or ions of two or more elements that are chemically bonded together
The presence of or having distinct and opposite poles
A liquid in which substances (or solutes) are dissolved forming a solution

Down

A double-stranded nucleic acid that contains the genetic information for cell growth, division, and function
group of synthetic hormones including prednisone, prednisolone, methylprednisolone and dexamethasone
A lipid consisting of a glycerol bound to two fatty acids and a phosphate group
ENERGY The energy that an atomic system must acquire before a process (can occur
A simple sugar, example: fructose, glucose, and ribose.
A large complex molecule, such as nucleic acids, proteins, carbohydrates, and lipids, with relatively large molecular weight
Any of the group of organic compounds consisting of carbon, hydrogen, and oxygen, usually in the ratio of 1:2:1
ACID The building block of protein in which each is coded for by a codon and linked together through peptide bonds
Describes a chemical reaction that absorbs energy (usually in the form of heat)
A molecule composed of polymers of amino acids joined together by peptide bonds. It can be distinguished from fats and carbohydrates by containing nitrogen.
A substance capable of initiating or speeding up a chemical reaction
A substance taking part in a chemical reaction
A fatty or waxy organic compound that is readily soluble in nonpolar solvent (e.g. ether) but not in polar solvent (e.g water)
describes a chemical reaction that releases energy (usually in the form of heat)
The passive movement of molecules or particles along a concentration gradient, or from regions of higher to regions of lower concentration
A type of RNA that carries the code or chemical blueprint for a specific protein
They are chemical compounds which yield hydrogen ions or protons when dissolved in water

35 Clues: water-soluble compound that reacts with acid • A substance taking part in a chemical reaction • The act, state or process of sticking together • The presence of or having distinct and opposite poles • A simple sugar, example: fructose, glucose, and ribose. • a chemical substance formed as a result of a chemical reaction • ...

Ch.2 Vocab 2022-01-20

Across

the process by which one or more substances change to produce one or more different substances
in any physical change or chemical reaction, mass is conserved; mass can be neither created nor destroyed
a change that produces matter with a different composition than the original matter
a substance present at the start of a reaction
A substance made up of atoms of two or more different elements joined by chemical bonds
A homogeneous mixture of two or more substances
a solid that forms and settles out of a liquid mixture
a substance produced in a chemical reaction

Down

some properties of a material change, but the composition of the material does not change
a mixture in which the composition is not uniform throughout
a quality or condition of a substance that can be observed or measured without changing the substance's composition
A mixture in which substances are evenly distributed throughout the mixture
the ability of a substance to undergo a specific chemical change
Gaseous state of a substance that is a liquid or a solid at room temperature
A measure of the amount of matter in an object

15 Clues: a substance produced in a chemical reaction • a substance present at the start of a reaction • A measure of the amount of matter in an object • A homogeneous mixture of two or more substances • a solid that forms and settles out of a liquid mixture • a mixture in which the composition is not uniform throughout • ...

AP Bio Unit 3 2024-10-25

Across

Temperature at which an enzyme works best.
Loss of enzyme function due to shape change.
Theory where the enzyme fits perfectly with the substrate
Substance that blocks the active site of an enzyme.
pH value at which an enzyme functions most efficiently.
Energy needed to start a chemical reaction.

Down

Temporary structure formed when an enzyme binds to its substrate.
Reactant that an enzyme acts upon
Process of speeding up a chemical reaction
Molecule that binds elsewhere, altering enzyme function.
Region on an enzyme where substrates bind
that speeds up chemical reactions

12 Clues: Reactant that an enzyme acts upon • that speeds up chemical reactions • Region on an enzyme where substrates bind • Process of speeding up a chemical reaction • Temperature at which an enzyme works best. • Energy needed to start a chemical reaction. • Loss of enzyme function due to shape change. • Substance that blocks the active site of an enzyme. • ...

Chapter 2 2019-01-17

Across

Basic unit of a chemical element.
(protein) antibodies is an example of this
Adenosine triphosphate
A reaction where bonds are broken and combined.
a substance that accepts hydrogen ions
anything that has mass and takes up space
single sugar
a measure of the hydorgen ion concentration of a solution
A reaction where 2 or more molecules or atoms combine to form a larger and more complex molecule.
created in 1869
particle with a neutral charge
(reaction)process in which molecules are formed, changed, or broken down.
(protein)spheroproteins
an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
(atomic __) the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
particle with a negative charge
Positive subatomic particle.
the ionized or ionizable constituents of a living cell, blood, or other organic matter.
A reaction where bonds are broken.
a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
(model) also known as Bohr’s atomic model
a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
deoxyribonucleic acid
Carbon-containing compound.
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei
include wax and oil; fatty acid

Down

a change from one state (solid or liquid or gas) to another without a change in chemical composition
a bond involving the sharing of electrons netween atoms
a carbohydrate whose molecules consist of a number of sugar molecules bonded together.
form the basic structural unit of nucleic acids
a radioactive isotope.
energy that travels by waves or particles
organic compound composed of carbon, hydrogen, and oxygen; includes starches, sugars, and glucose.
chemical reaction in which an acid and a base react quantitatively with each other.
one of a class of substances that cannot be separated into simpler substances by chemical means.
a substance that liberates hydrogen ions when in an aqueous solution.
the emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.
Energy form directly involved in putting the matter into motion.
the outermost shell of an atom containing the valence electrons.
A bond that forms when electrons are transferred from one atom to another.
the energy of a body or a system with respect to the motion of the body or of the particles in the system.
any of a class of sugars whose molecules contain two monosaccharide residues.
a group of atoms bonded together
Lack of carbon; compound.
(atomic __) A number equal to the sum of all the neutrons and the protons in an atom's nucleus.
a region on an enzyme that binds to a protein or other substance during a reaction.
electrical charge
fibrous proteins
(atomic __)atomic mass
another term would be inert energy
Composed of 2 or more elements.
a solution that resists changes in pH when acid or alkali is added to it.
amino acid
(atomic __)letters that represent an element
ribonucleic acid

55 Clues: amino acid • single sugar • created in 1869 • fibrous proteins • ribonucleic acid • electrical charge • deoxyribonucleic acid • a radioactive isotope. • Adenosine triphosphate • (atomic __)atomic mass • (protein)spheroproteins • Lack of carbon; compound. • Carbon-containing compound. • Positive subatomic particle. • particle with a neutral charge • particle with a negative charge • ...

Vocabulary Review 2022-03-29

Across

One of the 5 types of reactions, involves combining two or more reactants to form one product
(2 words) The substance you have extra (leftovers) of in a chemical reaction.
Bonding between two or more nonmetals
The substance the solute gets dissolved into in a solution
Bonding between a metal and a nonmetal
Surface _____ is what causes water to bead together and behave as if it has a thin skin on its surface.
A unit of measurement for energy/heat
Heat is absorbed. Listed in an equation as a reactant
Celcius plus 273
The measure of the average kinetic energy of a substance
Used to convert between moles of one substance in a reaction to moles of another substance
Very strong attractive force that holds water molecules to each other is called ____ bonding.
Energy absorbed is ___ to energy released
In a chemical equation, what is listed AFTER the arrow
One of the 5 types of reactions, the products are always carbon dioxide and water vapor.
In a chemical equation, what is listed BEFORE the arrow
Nonpolar substance only dissolve in ____ substances
Used to balance chemical equations. Placed before the chemical formula
A reaction where electrons are gained and the charge decreases (think OIL RIG)
(2 words) The substance that runs out first in a chemical reaction and stops the reaction.
A graph of this type of reaction would have a negative delta H. The products have less energy than the reactants.

Down

A type of solution in which more solute can be dissolved.
(2 words) Calculated for a compound by multiplying the number of each atom by the mass on the periodic table and adding all products together.
The substance dissolved into a solution
A reaction where electrons are lost and the charge increases (think OIL RIG)
A unit that measures the amount of a substance. It is equal to 6.02 x 10^23 particles of that substance and the molar mass of that substance.
(2 words) Actual Yield divided by theoretical yield times 100.
CaCO3 (calcium carbonate) is ___ when you try to dissolve it in water.
(2 words) One of the 5 types of reactions, involves an element replacing another in a compound. May or may not occur, must check the Activity Series.
One of the 5 types of reactions, involves one reactant breaking apart into multiple products
For this type of solute, as temperature increases, solubility decreases
A way of calculating the energy released by an object by comparing it to the energy absorbed by another substance (usually water)
A solution that conducts electricity. Ionic compounds are this.
(2 words) The amount of heat needed to raise the temperature of 1 gram of a substance by 1 degree Celcius. For water it is 1 cal/g(degree C).
Energy of motion
In chemistry, the energy stored in bonds
Moles divided by Liters
A type of solution that has the maximum amount of solute dissolved as allowed at a given temperature.
A homogenous mixture where a solute is dissolved into a solvent
When the electrons in a covalent bond are shared unequally and cause areas of partially positive charge and partially negative charge
The universal solvent

41 Clues: Energy of motion • Celcius plus 273 • The universal solvent • Moles divided by Liters • Bonding between two or more nonmetals • A unit of measurement for energy/heat • Bonding between a metal and a nonmetal • The substance dissolved into a solution • In chemistry, the energy stored in bonds • Energy absorbed is ___ to energy released • ...

Chapter 13 2019-10-02

Across

no atoms are lost or gained during any reaction.
how quickly the concentration of reactants decreases and how quickly the concentration of products increases.
to overcome the initial breaking of bonds in reactants.
reaction is when there is a net release of energy.

Down

also known as Activation Energy.
is the minimum energy
is a chemical that accepts a hydrogen ion, H+.
is a chemical that donates a hydrogen ion, H+.
reaction is when there is a net absorption of energy.
when reaction and its reverse act at the same rate.
is a measure of the concentration of hydronium ions, H3O+.

11 Clues: is the minimum energy • also known as Activation Energy. • is a chemical that accepts a hydrogen ion, H+. • is a chemical that donates a hydrogen ion, H+. • no atoms are lost or gained during any reaction. • reaction is when there is a net release of energy. • when reaction and its reverse act at the same rate. • reaction is when there is a net absorption of energy. • ...

Enzymes 2024-07-21

Across

- Biological catalysts speeding up reactions.
- Enzymes functioning outside living cells.
- Locations on enzymes, either active or allosteric.
- Type of reaction enzymes catalyze.
- Sites on enzyme other than the active site.
- Resulting substances formed by enzyme action.

Down

- Substances on which enzymes act.
- Process enzymes speed up.
- What catalysts do to reactions.
- Type of catalysts enzymes are.
- Substance speeding up chemical reactions without being changed.
- Site on enzyme where substrate fits.
- Enzymes working inside living cells.

13 Clues: - Process enzymes speed up. • - Type of catalysts enzymes are. • - What catalysts do to reactions. • - Substances on which enzymes act. • - Type of reaction enzymes catalyze. • - Site on enzyme where substrate fits. • - Enzymes working inside living cells. • - Enzymes functioning outside living cells. • - Biological catalysts speeding up reactions. • ...

Enzymes 2024-07-21

Across

- Biological catalysts speeding up reactions.
- Enzymes functioning outside living cells.
- Locations on enzymes, either active or allosteric.
- Type of reaction enzymes catalyze.
- Sites on enzyme other than the active site.
- Resulting substances formed by enzyme action.

Down

- Substances on which enzymes act.
- Process enzymes speed up.
- What catalysts do to reactions.
- Type of catalysts enzymes are.
- Substance speeding up chemical reactions without being changed.
- Site on enzyme where substrate fits.
- Enzymes working inside living cells.

All about Enzymes 2022-11-10

Across

A pH level ideal for the reaction to occur at the fastest possible rate
A substance that speeds up the rate of chemical reactions
An enzyme that breaks down protein
Proteins which function as biological catalysts
The starting material for an enzyme to act upon
The region of an enzyme where substrate molecules bind and undergo a chemical reaction

Down

An enzyme that breaks down hydrogen peroxide into water and oxygen
A stomach enzyme that breaks down protein into amino acids and aids digestion
An enzyme that breaks down cell walls and enhances the process of fruit juice extraction
When an enzyme loses its structure and is no longer able to function, it is...
An enzyme that converts complex carbohydrates into simple sugars
A compound obtained at the end of a chemical reaction
An enzyme that breaks down fat

13 Clues: An enzyme that breaks down fat • An enzyme that breaks down protein • Proteins which function as biological catalysts • The starting material for an enzyme to act upon • A compound obtained at the end of a chemical reaction • A substance that speeds up the rate of chemical reactions • An enzyme that converts complex carbohydrates into simple sugars • ...

Chemistry Puzzle 2025-04-08

Across

plants produce food using sunlight
a pure substance
group of atoms bonded together
the big number in front of the formula
the smallest particle of matter
the small number behind the element
substance formed as a result of a chemical reaction

Down

describes a chemical reaction
change in form or appearance
the starting materials found in a chemical equation

10 Clues: a pure substance • change in form or appearance • describes a chemical reaction • group of atoms bonded together • the smallest particle of matter • plants produce food using sunlight • the small number behind the element • the big number in front of the formula • the starting materials found in a chemical equation • substance formed as a result of a chemical reaction

Cellular Respiration and Photosynthesis 2023-01-23

Cellular Respiration and Photosynthesis crossword puzzle

Across

BONUS:the green pigment in chloroplasts
one of the reactants of cellular respiration- with the chemical formula C6H12O6
the organelle where the majority of the ATP is made in Cellular Respiration
one of the reactants of cellular respiration- the gas organisms breathe in and chemical formula O2
This chemical reaction turns glucose and oxygen into ATP (energy) Carbon Dioxide (CO2) and Water (H20)
Plants use this chemical reaction to turn carbon dioxide (CO2), water (H2O), and sunlight into Glucose and Oxygen (O2)

Down

gas that humans breathe out- reactant in photosynthesis and product in cellular respiration
Bonus:Increasing the amount of exercise increased the ___________ _______
the green organelle in plants that make glucose and oxygen during photosynthesis
Bonus: the full name of the chemical that changed color from blue to yellow
Humans' source of glucose comes from...
BONUS: the number of carbon dioxide and water molecules in the photosynthesis equation
BONUS: this energy process causes the burning feeling in your muscles- happens in the cytoplasm
a reactant in photosynthesis and product of cellular respiration- chemical formula H20
BONUS: the number of oxygen molecules in cellular respiration chemical equation
these 3 letters together are another name for energy

16 Clues: BONUS:the green pigment in chloroplasts • Humans' source of glucose comes from... • these 3 letters together are another name for energy • Bonus:Increasing the amount of exercise increased the ___________ _______ • Bonus: the full name of the chemical that changed color from blue to yellow • ...

Chemistry Crossword 2015-12-02

Across

invisible negatively charged particle that orbits the nucleus of an atom
an experiment in which all reactants and all products of a chemical reaction are accounted for
the amount of mass in a given volume of substance
positively charged center of an atom
mass of a substance tha can dissolve in a given amount of solvent to form a saturated solution at a given temperature
description of a solid that can be stretched into a long wire
description of a substance that can be pounded or rolled into sheets
change in appearance or state of a substance that does not change the comopsition
substances that helps a chemical reaction to proceed more quickly
is the ability of a substance to conduct electricity or heat
number of protons in a nucleus of one atom of an element
change of state from a liquid to a solid

Down

orbit of electrons around the nucleus of an atom
anything that has mass and occupies space
chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
measure of atomic mass
change of state from a gas to a liquid
the smallest part of an element that is a representative of that element
change of state from a liquid to a gas
slow chemical change that occurs when oxygen in the air reacts with metal
ability to do work
group of 17 elements in the periodic table
change of state from a solid to a liquid

23 Clues: ability to do work • measure of atomic mass • positively charged center of an atom • change of state from a gas to a liquid • change of state from a liquid to a gas • change of state from a solid to a liquid • change of state from a liquid to a solid • anything that has mass and occupies space • group of 17 elements in the periodic table • ...

Scientific Terms 2014-08-12

Across

A solution that contains a small quantity of solute compared to the solvent.
Solution A solution in which the maximum amount of solvent has been dissolved.
To charge with carbon-dioxide gas.
Able to dissolve other substances
The process when molecules change from the liquid phase to a gas phase.
The settling of particles onto a surface. (Ofter Gas to Liquid)
The opposite of evaporation.
Change An object that can be changed to, and back to its original form.
A chemical type that donates electrons.
A compound that has a sour taste.
Two substances that are combined and dissolved.

Down

Reaction A chemical change that forms new substances.
Of Matter Liquid, Solid, Gas
This form changes shape according to its container.
To cause particle to separate evenly throughout a solid, liquid or gas.
The transition from a solid phase to gas phase without going through the liquid stage.
Concentrated A mixture of two or more liquids.
Change Solute A change that can't go back to its original state.
The particles are very very fast.
The process when a substance changes from a liquid to a solid because the temperature becomes very cold.
An object of which the particles are packed tight very close to each other.
A small portion of matter.
A chemical reaction between a fuel and a oxidizing agent.
A loss of electrons during a reaction
The process when a substance changes from a solid phase to a liquid phase.

25 Clues: A small portion of matter. • Of Matter Liquid, Solid, Gas • The opposite of evaporation. • The particles are very very fast. • Able to dissolve other substances • A compound that has a sour taste. • To charge with carbon-dioxide gas. • A loss of electrons during a reaction • A chemical type that donates electrons. • Concentrated A mixture of two or more liquids. • ...

N.Sc 2024-07-05

Across

a chemical reaction that happens when objects or substances are burned.
a chemical reaction that happens in some living things, such as yeast and bacteria
current the flow of electrical charges through materials.
a type of matter which contains two or more pure substances.
circuit a closed path through which electricity flows.
a material which does not allow electrical charges to move.
a method used to separate substances of different density in heterogeneous
a material which allows electrical charges to move.
mixture :a mixture in which the different components can be distinguished.
a chemical reaction that happens when some metal substances such as iron combine with oxygen in the presence of water
mixture :a mixture in which the different components cannot be distinguished.

Down

an object which can attract other objects made of iron and other magnetic metals.
reactions these happen when atoms react and group together differently.
a device with a magnetic needle that always points north. We use it to orient ourselves.
a method used to separate solids from liquids in homogeneous mixtures.
a method used to separate solids from liquids, or solids with different size particles, in heterogeneous mixtures.
another word for a homogeneous mixture.
the force of attraction exerted by magnets.
substance a type of matter which contains only one type of component.
a connecting wire, usually made of copper, wrapped in plastic covering.
a method used to separate liquids that have different boiling points in homogeneous mixtures
the component of an electric circuit which provides the electricity.
the component of an electric circuit which transforms electricity into another type of energy.

23 Clues: another word for a homogeneous mixture. • the force of attraction exerted by magnets. • a material which allows electrical charges to move. • circuit a closed path through which electricity flows. • current the flow of electrical charges through materials. • a material which does not allow electrical charges to move. • ...

Foooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooood 2024-02-06

Foooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooood crossword puzzle

Across

textureing agent
metobobolic process that produces chemical changes in enzymes.
adding bright, fresh notes and enhancing other ingredients
Flavoring agent
When people put food away to eat later
the movement of particles through a membrane.

Down

A bunch of students at CRMS work on a project about food and science.
When protein gets unraveled due to heat.
reaction, the reaction that browns foods.
when food rises.
changes in nutrient composition, fat content, moisture, flavor, smell, texture, and color.
the reaction that put salt in your meat and
combines liquids that would not be using oil or mustard.

13 Clues: Flavoring agent • textureing agent • when food rises. • When people put food away to eat later • When protein gets unraveled due to heat. • reaction, the reaction that browns foods. • the reaction that put salt in your meat and • the movement of particles through a membrane. • combines liquids that would not be using oil or mustard. • ...

David's Crossword Puzzle Chemistry 3rd Hour 2025-05-06

David's Crossword Puzzle Chemistry 3rd Hour crossword puzzle

Across

A stable isotope of hydrogen
Its product is something that looks like helium
Its a name that ends with a D and Starts with a D
Same element different number of nuetrons
Hydrogen with different atomic mass
Something in a chemical reaction that causes the reaction
When Two things are joined together

Down

Its Product is energy
A kind of decay that gives off a Proton and a electron
A kind of decay that gives off a positron and a neutron
What is given at the end of a chemical reaction
What is the opposite of Fusion
the exact same thing as a electron but postive

13 Clues: Its Product is energy • A stable isotope of hydrogen • What is the opposite of Fusion • Hydrogen with different atomic mass • When Two things are joined together • Same element different number of nuetrons • the exact same thing as a electron but postive • Its product is something that looks like helium • What is given at the end of a chemical reaction • ...

Chemistry Crossword 2018-12-10

Across

pure substance that cannot be broken down into other substances contains one atom
substance that speeds up chemical reactions
Solid, liquid, gas and plasma
Change of stare from a solid to gas or a gas to a solid
Change in the appearance or state of a substance that does not change the composition
Measure of atomic mass
chemical reaction that produces heat
ability of a substance to conduct electricity or heat
a material that electricity or heat can move through easily
description of a solid that can be stretched into a long wire
positively charged center of an atom contains protons and nuetrons
A system of easy-to-use warning symbols for hazardous materials
chemical combination of two or more substances in a specific ratio
invisible negatively charged particle that orbits the nucleus of an atom
Change of state from a liquid to a solid
Catalyst involved in chemical reactions in living things

Down

slow chemical change that occurs when oxygen in the air reacts with metal
Change of state from a liquid to a gas
chemical reaction that absorbs heat
group 17 elements in the periodic table least reactive metals
number of protons in the nucleus equal to electrons
pure substance formed when at least one ,metal and nonmetal combine
Amount of mass in a given volume of a substance
Change of state from a gas to a liquid
Change of state from solid to a liquid

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

Acids & Bases 2013-03-12

Across

________ is the weakest acid.
Corrosive is a common WHMIS _______ when handling acids and bases.
A ___________ compound is a chemical substance formed by elements sharing valence electrons.
Ionic and molecular compounds will both turn _______ when bromothymol blue is added.
An ________ compound is a chemical substance formed from the mutual attraction of positive and negative ions.
The pH range of an acid is zero to ________.
Basic compounds taste ________.
The substance that donates or loses a hydrogen ion to another substance during a chemical reaction.

Down

The substance that accepts or gains a hydrogen ion from another substance during a chemical reaction.
Hydroxide is the _________ base.
A litmus paper in sodium hydroxide will be ______.
Acidic compounds taste ________.
A neutral molecular compound will not ________ electricity.
Spill an acid - put a base on it such as ________ soda.
A litmus paper in hydrochloric acid will be ______.

15 Clues: ________ is the weakest acid. • Basic compounds taste ________. • Hydroxide is the _________ base. • Acidic compounds taste ________. • The pH range of an acid is zero to ________. • A litmus paper in sodium hydroxide will be ______. • A litmus paper in hydrochloric acid will be ______. • Spill an acid - put a base on it such as ________ soda. • ...

ie/y_e 2025-04-29

Across

A small harp-like instrument from ancient times
To speed up a chemical reaction without being used up
To examine something carefully to understand it better
To compete eagerly for something
A substance in the body that helps speed up chemical reactions
A lot of talk or advertising that makes something seem exciting
A type of neckwear shaped like two triangles

Down

A particular way of doing or presenting something
A strong-smelling chemical used to preserve things
A black-and-white bird known for its loud call and stealing shiny things
A pile of wood used to burn a dead body in some traditions
A person who helps a priest or leader during a ceremony
To clean the blood using a machine when kidneys don’t work
A group or kind of something, often used in printing or writing
To break down a substance using water in a chemical reaction

15 Clues: To compete eagerly for something • A type of neckwear shaped like two triangles • A small harp-like instrument from ancient times • A particular way of doing or presenting something • A strong-smelling chemical used to preserve things • To speed up a chemical reaction without being used up • To examine something carefully to understand it better • ...

Chemistry paper 2 revision 2024-02-13

Chemistry paper 2 revision crossword puzzle

Across

change of state from gas-liquid
speeds up the rate of reaction by offering an alternative chemical pathway with a lower activation energy
a process used to split long chain alkanes into shorter chains
a pollutant produced under high temperature/pressure when nitrogen and oxygen from the air react
A reaction that takes in energy from its surroundings
caused by carbon particulates
causes squeaky pop when lit splint added to it
A reaction that gives out energy to its surroundings
caused by carbon dioxide
A molecule made up of only hydrogen and carbon atoms
goes cloudy in presence of CO2
relights a glowing splint

Down

the minimum energy needed for a chemical reaction
a pollutant that results in acid rain
How thick a liquid is
orange-colourless in present of an alkene
a mixture designed as a useful product
when increased, particles have more energy
a pollutant produced by incomplete combustion
used to separate inks in a sample
a catalyst used in cracking
increases as the molecules become larger- stronger IMF forces
a pollutant produced by complete combustion
the number of particles in a given volume
water that is safe to drink is called...

25 Clues: How thick a liquid is • caused by carbon dioxide • relights a glowing splint • a catalyst used in cracking • caused by carbon particulates • goes cloudy in presence of CO2 • change of state from gas-liquid • used to separate inks in a sample • a pollutant that results in acid rain • a mixture designed as a useful product • water that is safe to drink is called... • ...

Caden Caldwell 2025-05-22

Across

columns on the periodic table
the total area of the exterior of an object
hydrogen carbon and oxygen combine to make heat and light water and carbon dioxide
reaction where a compound replaces a part of itself with another element
something known because of your senses (sight sound smell etc)
a number placed in front of a chemical symbol
a atom that gained or lost a charge
scaled from 0 to 7
can be measured with a thermometer
a reaction where a single compound splits or breaks down into smaller bits
a reaction where two compound swap one of there parts with the other
positive charge
scaled from 7 to 14
a atom that gained a positive charge

Down

electrons on the outer most shell
scaled at 7
a atom that gained a negative charge
range of numbers from 0 to 14
a reaction where two or more elements or compounds combine
a educated guess based on what you know
the amount of a substance given
the rows on the periodic table
neutral charge
number of protons
how much matter contained in atom
small number written below the chemical symbol and right a bit
negative charge

27 Clues: scaled at 7 • neutral charge • positive charge • negative charge • number of protons • scaled from 0 to 7 • scaled from 7 to 14 • columns on the periodic table • range of numbers from 0 to 14 • the rows on the periodic table • the amount of a substance given • electrons on the outer most shell • how much matter contained in atom • can be measured with a thermometer • ...

Cellular Respiration 2023-04-05

Across

The form of energy used by cells
produces atp without oxygen
energy in food comes from this source
what comes out of a chemical reaction
a product of cellular respiration

Down

a waste product of anaerobic respiration
what goes into a chemical reaction
where cellular respiration takes place
Inhaling and exhaling for gas exchange
a byproduct of cellular respiration
stores energy in food
needed for cellular respiration
cells need this to stay alive

13 Clues: stores energy in food • produces atp without oxygen • cells need this to stay alive • needed for cellular respiration • The form of energy used by cells • a product of cellular respiration • what goes into a chemical reaction • a byproduct of cellular respiration • energy in food comes from this source • what comes out of a chemical reaction • ...

Unit 2 2023-10-04

Across

How much matter is in a certain space
The new substances that occur after a chemical reaction
Describes a material that can dissolve in a particular substance
Describes a material that does not dissolve in something else
A blend of two or more substances
made of one type of material throughout
How a substance interacts with fire

Down

The substances you start with in a chemical reaction
a characteristic of a substance that does not change
Reaction A process in which one or more substances are converted to different substances
When a solid dissolves in a liquid, the solid breaks apart into particles to small to see and it mixes completely in the liquid
A measure of a fluid’s resistance to flow
Process A method or means of somehow changing one or more chemicals or chemical compounds
of Matter The distinct forms in which matter can exist (solid, liquid, gas)

14 Clues: A blend of two or more substances • How a substance interacts with fire • How much matter is in a certain space • made of one type of material throughout • A measure of a fluid’s resistance to flow • The substances you start with in a chemical reaction • a characteristic of a substance that does not change • The new substances that occur after a chemical reaction • ...

Ch. 2 AH Biology 2024-08-29

Across

/ biological catalysts; mostly proteins
/ substance formed by the chemical combination of two or more elements in definite proportions
/ negatively charged particle; located in the space surrounding the nucleus
/ smallest unit of most compounds that displays all the properties of that compound
/ a compound that prevents sharp, sudden changes in pH
/ compound with an amino group on one end and a carboxyl group on the other end
/ energy input that is needed for a reaction to begin
/ the center of an atom, which contains the protons and neutrons
/ an atom that has a positive or negative charge
/ process that changes, or transforms, one set of chemicals with another set of chemicals
/ dissolving substance in a solution
/ a subunit of which nucleic acids are composed
/ substance that is dissolved in a solution
/ macromolecule containing hydrogen, oxygen, nitrogen, carbon, and phosphorous
/ compound that prevents sharp, sudden changes in pH

Down

/ elements or compounds that enter into a chemical reaction
/ weak attraction between a hydrogen atom and another atom
/ sight attraction that develops between oppositely charged regions of nearby molecules
/ material composed of two or more elements or compounds that are physically mixed together but not chemically combined
/ reactant of an enzyme-catalyzed reaction
/ chemical bond formed when one or more electrons are transferred from one atom to another
/ one of several forms of a single element, which contains the same number of protons but a different number of neutrons
/ type of bond between atoms in which the electrons are shared
/ force of attraction between different kinds of molecules
/ compound that produces hydroxide ions (OH-) in solution, solutions with a pH level of more than 7
/ macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes
/ elements or compounds created by a chemical reaction
/ a small chemical unit that makes up a polymer
/ a scale with a values from 0 to 14, used to measure the concentration of H+ ions in a solution
/ compound that forms hydrogen ions (H+) in solution, a solution with a pH of less then 7
/ attraction between molecules of the same substance
/ pure substance that consists entirely of one type of atom
/ substance that speeds up the rate of a chemical reaction
/ compound made of carbon, hydrogen, and oxygen atoms; types of nutrients that are major sources of energy to the body
/ type of mixture in which all the components are evenly distributed
/ macromolecule that contains carbon, hydrogen, oxygen, nitrogen; needed by the body for growth and repair
/ the basic unit of matter
/ a molecule composed of many monomers; makes up macromolecules

38 Clues: / the basic unit of matter • / dissolving substance in a solution • / biological catalysts; mostly proteins • / reactant of an enzyme-catalyzed reaction • / substance that is dissolved in a solution • / a small chemical unit that makes up a polymer • / a subunit of which nucleic acids are composed • / an atom that has a positive or negative charge • ...

Unit 2 biology Crossword 2024-12-19

Unit 2 biology Crossword crossword puzzle

Across

a measure of the concentration of hydrogen ions in a solution
a chemical bond wherein there is a transfer of an electron from one atom to another
enzyme that occurs naturally in the saliva of some mammals and humans that aids in the process of digestion
a stable subatomic particle with positive electric charge
things that lock in with enzymes
members of a family of an element that all have the same number of protons but different numbers of neutrons
a process by which one or more reactants are converted into one or more products
end substances after a biological process has occurred
a biological catalyst and is almost always a protein that helps break stuff down
a group of two or more atoms that are held together by attractive forces known as chemical bonds
the structure in a cell that contains the chromosomes
a chemical bond that involves the sharing of electrons to form electron pairs between atoms
The smallest part of a substance that cannot be broken down chemically
the electromagnetic attraction created between a partially positively charged hydrogen atom attached to a highly electronegative atom and another nearby electronegative atom
The substances which participate in a chemical reaction
the specific region of an enzyme where a substrate binds and catalysis takes place or where chemical reaction occurs
an enzyme the body uses to break down fats in food so they can be absorbed in the intestines.

Down

an enzyme that hydrolyses peptide bonds
a substance that can be dissolved into a solution by a solvent
a chemical bond wherein there is a transfer of an electron from one atom to another
substance (molecule) with the ability to dissolve other substances (solutes) to form a solution
A small particle with a negative charge that is found in all atoms
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
a homogeneous mixture of one or more solutes dissolved in a solvent
a substance that speeds up a chemical reaction, or lowers the temperature or pressure needed to start one, without itself being consumed during the reaction
attraction and repulsions between atoms, molecules, as well as other intermolecular forces
a unique substance that consists of two or more elements combined in fixed proportions
an enzyme that is responsible for oxidizing ethanol and converting it into nicotinamide adenine dinucleotide
a pure substance consisting of only one type of atom which all have the same numbers of protons in their nuclei.
one of the three subatomic particles that make up an atom
The minimum energy required for a reaction to occur

31 Clues: things that lock in with enzymes • an enzyme that hydrolyses peptide bonds • The minimum energy required for a reaction to occur • the structure in a cell that contains the chromosomes • end substances after a biological process has occurred • The substances which participate in a chemical reaction • a stable subatomic particle with positive electric charge • ...

Organic chemistry 2025-05-09

Across

The type of reaction that involves burning a substance in oxygen.
Long-chain molecules formed from repeating units.
Organic compound group characterized by a –COOH group.
A type of reaction where two compounds exchange ions.
The property that tends to increase with molecular size in a homologous series.
A reaction where two substances combine to form one product.
A branch of chemistry focused on carbon-containing compounds.
Hydrocarbons with only single bonds.
The term for the part of a molecule responsible for its chemical reactions.
A series of compounds with the same functional group and similar chemical properties.
Compounds used to treat diseases, often synthesized organically.

Down

Structural type that shows each atom and bond in a molecule.
Combustion produces carbon dioxide and this substance.
The process of breaking down a compound into simpler substances.
A functional group found in alcohols.
Different compounds with the same molecular formula but different structural formulas.
The simplest class of organic compounds composed of only carbon and hydrogen.
A substance derived from petroleum used in making plastics.
A type of reaction that involves one element replacing another in a compound.
Naturally occurring polymers include starch and this protein found in hair.

20 Clues: Hydrocarbons with only single bonds. • A functional group found in alcohols. • Long-chain molecules formed from repeating units. • A type of reaction where two compounds exchange ions. • Combustion produces carbon dioxide and this substance. • Organic compound group characterized by a –COOH group. • A substance derived from petroleum used in making plastics. • ...

Chemistry 3 Review Crossword 2020-02-13

Across

Evil things that float around in the sky and judge me and contribute to global warming
A Jedi who lived in the swamps of Degobah
A chemical reaction in which the temperature measured in the reaction would decrease
The scientific standard unit of energy
Using electrolysis to coat an objecting in a metal
A chemical reaction which gives off light
A metal which cannot be mined and must be obtained through electrolysis

Down

One way of extracting oil from fruits using heating and cooling
Electrolysis of water produces oxygen and ...
A unit of energy found on food packaging
Lowers the activation energy of a reaction
The electrode to which the negative ions move

12 Clues: The scientific standard unit of energy • A unit of energy found on food packaging • A Jedi who lived in the swamps of Degobah • A chemical reaction which gives off light • Lowers the activation energy of a reaction • Electrolysis of water produces oxygen and ... • The electrode to which the negative ions move • Using electrolysis to coat an objecting in a metal • ...

Enzymes 2025-03-18

Across

The enzyme that breaks down starch into maltose
A measure of acidity or alkalinity affecting enzyme activity
The enzyme that breaks down lactose in dairy products
The sugar in milk that requires lactase to be digested
The specific molecule that an enzyme acts upon
The result of an enzyme catalysed reaction
A protease enzyme that works in the stomach
A substance that speeds up a chemical reaction without being consumed
The chemical formula for the acid in the stomach that activates pepsin

Down

The organ that produces digestive enzymes for the small intestine
A biological catalyst that speeds up chemical reactions
The enzyme that breaks down proteins into amino acids
When an enzyme loses its shape and stops working due to heat or pH changes
A component of fats that results from lipase action
A substance produced by the liver that helps emulsify fats for digestion
The organ where pepsin breaks down proteins
Intestine The main site of chemical digestion and nutrient absorption
The enzyme that breaks down fats into fatty acids and glycerol

18 Clues: The result of an enzyme catalysed reaction • The organ where pepsin breaks down proteins • A protease enzyme that works in the stomach • The specific molecule that an enzyme acts upon • The enzyme that breaks down starch into maltose • A component of fats that results from lipase action • The enzyme that breaks down proteins into amino acids • ...

Ch2 The Chemistry of Life 2024-09-21

Ch2 The Chemistry of Life crossword puzzle

Across

Weak forces of attraction between molecules, caused by temporary dipoles formed by shifting electron clouds.
A substance that stabilizes the pH of a solution by neutralizing small amounts of acid or base.
A mixture in which small particles are dispersed in a liquid but do not dissolve (e.g., muddy water).
A negatively charged particle that orbits the nucleus of an atom.
A chemical bond formed when two atoms share electrons.
scale A scale that measures the acidity or basicity of a solution, ranging from 0 (acidic) to 14 (basic), with 7 being neutral.
A combination of two or more substances that are physically mixed but not chemically combined.
The building block (monomer) of proteins.
A polymer, such as DNA or RNA, that carries genetic information.
The minimum amount of energy required to start a chemical reaction.
An atom or molecule that has gained or lost electrons, resulting in a positive or negative charge.
Organic compounds, including sugars and starches, that serve as a major energy source.
A substance made of only one type of atom, such as hydrogen or oxygen.
A polymer made of amino acids, responsible for many biological functions, including enzymes and muscle building.
The substance that is dissolved in a solution (e.g., salt in saltwater).
Organic compounds, such as fats and oils, used for long-term energy storage and cell structure.
A substance with a pH below 7 that releases hydrogen ions (H⁺) in solution.
A protein that acts as a biological catalyst to speed up chemical reactions in living organisms.
A weak bond between slightly positive hydrogen atoms and slightly negative atoms (like oxygen or nitrogen) in molecules.
A type of mixture where one substance (solute) is completely dissolved in another (solvent).

Down

The central part of an atom, made up of protons and neutrons.
The substance on which an enzyme acts during a chemical reaction.
A substance with a pH above 7 that releases hydroxide ions (OH⁻) in solution.
Atoms of the same element with the same number of protons but different numbers of neutrons.
A substance made of two or more different elements chemically bonded together.
The attraction between molecules of different substances (e.g., water molecules sticking to glass).
The basic unit of matter, consisting of a nucleus surrounded by electrons.
A substance that speeds up a chemical reaction without being consumed by it.
The substance that dissolves the solute in a solution (e.g., water in saltwater).
A substance that is formed as a result of a chemical reaction.
A chemical bond formed when one atom transfers electrons to another atom, creating charged ions that attract each other.
A substance that undergoes a change during a chemical reaction.
A small molecule that can bond with others to form a polymer.
A process in which substances (reactants) are changed into new substances (products) by breaking and forming bonds.
The attraction between molecules of the same substance (e.g., water molecules sticking together).
A large molecule made up of repeating smaller units called monomers.
The building block (monomer) of nucleic acids, consisting of a sugar, a phosphate group, and a nitrogenous base.
A group of atoms bonded together, representing the smallest unit of a compound that retains its chemical properties.

38 Clues: The building block (monomer) of proteins. • A chemical bond formed when two atoms share electrons. • The central part of an atom, made up of protons and neutrons. • A small molecule that can bond with others to form a polymer. • A substance that is formed as a result of a chemical reaction. • A substance that undergoes a change during a chemical reaction. • ...

Chemistry Crossword 2018-12-13

Across

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

Down

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

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

Chemistry Crossword 2018-12-10

Across

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

Down

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

Chapter 12: Basics of Chemistry 2013-01-29

Chapter 12: Basics of Chemistry crossword puzzle

Across

Organic chemistry contains
Combination of two or more atoms
Neutralizes acids or raises the pH of hair products
Can be mixed to make a stable solution
Contains two or more of the same element (2 words)
Lighting a match is an example of __
Volatile organic compounds
Measures the alkalinity and acidity of substances
Change in chemical composition (2 words)
Derived from plants (acronym)
Salt water is an example of a (2 words)
Particles in a mixture
has a positive charge
Water-loving
Inorganic chemistry may contain
Allows oil and water to mix
Occupies space

Down

Contains two or more of different elements in definite proportions (2 words)
Smallest chemical compound
Liquids that cannot be mixed to make a stable solution
Chemical reaction in which the oxidizing agent is reduced and the reducing agent is oxidized
Chemical reactions that release a significant amount of heat (2 words)
Oil-loving
Simplest form of chemical matter
Separation of an atom or molecule into ions
Liquid, __, and solid are the states of matter
Composed of hydrogen and nitrogen
Oxidizing ___ is a substance that releases oxygen
Sweet, colourless oily substance
Also known as bases
Means multiples of ten
Change in the form of physical properties (2 words)
has a negative charge
Chemical reaction that combines a substance with oxygen
Most substances do not exist in a ___ state

35 Clues: Oil-loving • Water-loving • Occupies space • Also known as bases • has a negative charge • has a positive charge • Means multiples of ten • Particles in a mixture • Organic chemistry contains • Smallest chemical compound • Volatile organic compounds • Allows oil and water to mix • Derived from plants (acronym) • Inorganic chemistry may contain • Combination of two or more atoms • ...

Unit 4 Crossword 2021-09-29

Across

point where liquid becomes gas
a solution that contains less solute than a saturated solution
how hot or cold something is
mass over volume
the minor compound in a solution

Down

causes a chemical reaction
the Aurora Borealis is a:
amount of a particular substance in a solution
point where solid becomes liquid
a solution that cannot dissolve any more solute
gas and liquids are:
substance formed in a chemical reaction
dissolves other substances

13 Clues: mass over volume • gas and liquids are: • the Aurora Borealis is a: • causes a chemical reaction • dissolves other substances • how hot or cold something is • point where liquid becomes gas • point where solid becomes liquid • the minor compound in a solution • substance formed in a chemical reaction • amount of a particular substance in a solution • ...

Activity 1 2022-05-07

Across

____ is between the number of moles of reactants consumed and the number of moles of a product generated in a chemical reaction.
A greek symbol like aplha, omega, ang beta. In chemical kinetics, it means "change in".
The study of chemical rates is called _____.
Chemical reactions can cause a substance turn into a new substance. This change is known as ____.
_____must be balanced to reflect the law of conservation of matter.

Down

A ____ is a process of reactants being converted to products.
The substances that go into a chemical reaction are known as the _____.
The substances produced at the end of the reaction are known as the _____.
_____ refers to anything that occupies space and has mass.
_____ is a change in concentration over a time period.

10 Clues: The study of chemical rates is called _____. • _____ is a change in concentration over a time period. • _____ refers to anything that occupies space and has mass. • A ____ is a process of reactants being converted to products. • _____must be balanced to reflect the law of conservation of matter. • ...

Biology 2019-09-29

Across

A group of similar organisms that can breed and produce fertile offspring
Attraction between molecules of the same substance
A molecule that is a constituent of the inner bilayer of biological membranes, having a polar, hydrophilic head and a nonpolar, hydrophobic tail
A double sugar, consisting of two monosaccharides joined by dehydration synthesis.
Energy needed to get a reaction started
Water fearing
A subatomic particle that has no charge and that is found in the nucleus of an atom
lipid molecule with four fused carbon rings
A type of protein that speeds up a chemical reaction in a living thing

Down

A chemical substance that is present at the start of a chemical reaction
Carbohydrates that are made up of more than two monosaccharides
A group of ecosystems that share similar climates and typical organisms
the energy required to break a chemical bond and form neutral isolated atoms
The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree celcius
A tendency to maintain a balanced or constant internal state; the regulation of any aspect of body chemistry, such as blood glucose, around a particular level
An attraction between molecules of different substances
Formed when one or more electrons are transferred from one atom to another
A fat that is solid at room temperature and found in animal fats, lards, and dairy products
describes a molecule in which the positive and negative charges are separated
A liquid substance capable of dissolving other substances

20 Clues: Water fearing • Energy needed to get a reaction started • lipid molecule with four fused carbon rings • Attraction between molecules of the same substance • An attraction between molecules of different substances • A liquid substance capable of dissolving other substances • Carbohydrates that are made up of more than two monosaccharides • ...

Thermochemistry 2024-05-26

Across

Chemical reaction in which heat is absorbed
Heat Energy
water by 1°C, or about 4.2 joules
The result of the movement of tiny particles called atoms, molecules, or ions
A substance that takes part in an undergoes change during a reaction
The species formed from chemical reactions
The energy an object or particle has due to its motion
Units
The energy that comes from a source and travels through space at the speed of light
The energy required to raise the temperature of 1 gram of a substance by 1°C
The quantity of heat necessary to change 1 gram of solid to a liquid without temperature changes
the amount of heat needed to turn 1 gram of a liquid into vapor, without a rise in the temperature of the liquid

Down

The unit of temperature on the Celsius scale in the International System
A unit of measurement for temperature (thermodynamics)
solids, liquids and gases
in a state
The study of energy changes that occur during chemical reactions and
The unit of work or energy in the International System of Units
Chemical reaction in which heat is given off
The process by which heat is transferred by movement of a heated fluid, such as air or water
an energy unit equal to the approximate amount of energy required to raise 1 g
The process by which heat is transferred from the hotter end to the colder end of an object
The measurement of heat changes

Grade 7 Bilingual - Unit 2 crossword 2023-12-07

Grade 7 Bilingual - Unit 2 crossword crossword puzzle

Across

Substances used in chemical reactions to detect, measure, examine, or produce other substances.
When something falls down suddenly, usually because it's not structurally sound.
How clearly objects can be seen, often used in the context of weather conditions.
This process happens when something burns, combining with oxygen and releasing heat and light.
Something that comes first, often serving as a preparation or introduction.
This type of reaction involves the combining of a substance with oxygen.
A common substance, chemically known as sodium chloride, often used to season food.
A chemical reaction that releases heat into its surroundings
Gases or particles that are released into the air, often from vehicles or factories.
The condition of the atmosphere at a particular place and time, with respect to heat, cloudiness, dryness, sunshine, wind, rain, etc.
A branch of mathematics dealing with data collection, analysis, interpretation, and presentation.

Down

A substance that readily undergoes chemical changes
A paper with a rough surface used for smoothing or polishing
A type of plastic that is made from plant or other biological materials instead of petroleum.
Huge, slow-moving masses of ice found in mountains or near the poles.
A large rock, typically one that has been worn smooth by erosion.
This substance, like gasoline or wood, is burned to produce energy
Chemically inactive
This type of chemical reaction absorbs heat
To scatter or fade away
The act of clearing a wide area of trees.
Iron does this when it reacts with oxygen and water over time, forming a reddish-brown coating

22 Clues: Chemically inactive • To scatter or fade away • The act of clearing a wide area of trees. • This type of chemical reaction absorbs heat • A substance that readily undergoes chemical changes • A paper with a rough surface used for smoothing or polishing • A chemical reaction that releases heat into its surroundings • ...

dnjds 2022-01-27

Across

depends only on the type of matter in a sample and not on the amount.
no shape
a coherent, typically large body of matter with no definite shape.
particle of matter that uniquely defines a chemical element
change of a substance from one physical form to another
gas law pv=nrt
transition of a substance directly from a solid-state to a gas state
fourth state of matter
depends on the amount of matter in a sample
one chemical substance is transformed into one or more different substances
composition is not uniform throughout the mixture
the substances produced at the end of the reaction
amount of mass and space taken up

Down

mass is neither created nor destroyed
takes shape of container
the action of purifying a liquid by a process of heating and cooling.
of a liquid, solution, or gas to a crystal
process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium
a change in properties such as texture, shape, or state
observed or measured without changing the identity of the substance
substance that takes part in and undergoes change during a reaction.
has a definite shape
composition is uniform throughout the mixture
of matter liquid gas solid
substance form of matter that has a constant composition and properties that are constant throughout the sample
combining 2 chemical substances
a substance diffused or suspended in the air
characteristic of a particular substance that can be observed in a chemical reaction.

28 Clues: no shape • gas law pv=nrt • has a definite shape • fourth state of matter • takes shape of container • of matter liquid gas solid • combining 2 chemical substances • amount of mass and space taken up • mass is neither created nor destroyed • of a liquid, solution, or gas to a crystal • depends on the amount of matter in a sample • a substance diffused or suspended in the air • ...

Enzymes 2020-03-02

Across

The founder of lock and key model.
A breakdown of high-energy substances into lower-energy products.
A component which is non-protein. It bound tightly and loosely for the efficiency of the enzyme's activity.
An enzyme group which is to transfer a function group to another molecule.
The condition where the unstable condition of an enzyme-substrate complex.
It speeds up the chemical reaction and stays unchanged at the end of the reaction in a biological system.
An enzyme group which breakdown substrate without removal of water.

Down

The substance which promotes the active shape and increasing enzyme activity.
The property of having a certain type of substrate to react with an enzyme.
The enzymes change shape so that the substrate will be correctly oriented at the active site.
The minimum energy needed for a specific chemical to occur.
The place of the reaction occurs at an enzyme.
Part of an endergonic reaction.
Total reaction in a biological system.
An enzyme group which join two molecules by the synthesis of a new bond.

15 Clues: Part of an endergonic reaction. • The founder of lock and key model. • Total reaction in a biological system. • The place of the reaction occurs at an enzyme. • The minimum energy needed for a specific chemical to occur. • A breakdown of high-energy substances into lower-energy products. • An enzyme group which breakdown substrate without removal of water. • ...

Chemical Reactions 2017-03-21

Across

AB-A+B
A list of metals ranked in order of decreasing reactivity to displace hydrogen gas from water and acid solutions.
A+B-AB
Tending to participate readily in reactions.
Cause (a substance) to be deposited in solid form from a solution.
Hydrocarbon+Oxygen-Carbon Dioxide+Water
AB+CD-AD+CB
Electrical charge that the central atom in a coordination compound would have if all the ligands and electron pairs were removed.

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A reaction in which soluble ions in separate solutions are mixed together to form an insoluble compound that settles out of solution as a solid.
The quality or property of being soluble.
A chemical equation for a reaction which lists only those species participating in the reaction.
A reaction in which an acid is added to a base (or a base is added to an acid) in order to form water and an inorganic salt.
A half-reaction in which a chemical species decreases its oxidation number, usually by gaining electrons.
A+BC-AC+B
The process or result of oxidizing or being oxidized.

15 Clues: AB-A+B • A+B-AB • A+BC-AC+B • AB+CD-AD+CB • Hydrocarbon+Oxygen-Carbon Dioxide+Water • The quality or property of being soluble. • Tending to participate readily in reactions. • The process or result of oxidizing or being oxidized. • Cause (a substance) to be deposited in solid form from a solution. • ...

Equilibrium Vocabulary 2021-04-28

Across

A substance that forms in a chemical reaction
The process by which one or more substances change to produce one or more different substances
A substance or molecule that participates in a chemical reaction

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States that when a system experiences a disturbance, it will respond to restore a new equilibrium state
The rate of a forward reaction equals the rate of its reverse reaction and the concentrations of its products and reactants remain unchanged
A chemical reaction in which the products can react to re-form the reactants
The amount of a particular substance in a given quantity of a mixture
The rate at which a chemical reaction takes place

8 Clues: A substance that forms in a chemical reaction • The rate at which a chemical reaction takes place • A substance or molecule that participates in a chemical reaction • The amount of a particular substance in a given quantity of a mixture • A chemical reaction in which the products can react to re-form the reactants • ...

Science Definitions 2021-08-13

Across

-(of a reaction or process) accompanied by or requiring the absorption of heat.
-(Of a reaction or process) accompanied by the release of heat.
-A circumstance of fact that contributes to a result.
-A measure, quantity or frequency typically one measured against another quantity of measure.
-Power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.
-The process of burning something. Or a rapid chemical combination of a substance with oxygen.
reaction -A process that involves rearrangement of the molecular or ionic structure of a substance.
-The relative amount of a particular substance contained with a solution or mixture or in a particular volume of space.

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-The action of breathing.
-A continuous physical force exerted on or against an object by something in contact with it.
-The degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer.
transfer -Also known as energy conversion is the process of changing energy from one form to another.
-A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical damage.

13 Clues: -The action of breathing. • -A circumstance of fact that contributes to a result. • -(Of a reaction or process) accompanied by the release of heat. • -(of a reaction or process) accompanied by or requiring the absorption of heat. • -A continuous physical force exerted on or against an object by something in contact with it. • ...

Chemistry Crossword!!! 2014-11-04

Across

Compound formed when two nonmetals combine
a system in which the products can escape
characteristics used to describe a substance
created the organization for the periodic table of elements
A compound that is created by combing a metal and non-metal
the substances that start the reaction
the orbit of electrons around a nucleus in an atom
the 7 horizontal rows in the periodic table
elements with metal and non metal properties
a chemical reaction that is formed when oxygen reacts with a substance that gives off energy
Element that is brittle before heated
matter going from a solid to liquid

Down

An Organic Catalyst
These chemists wrote the first chemistry text and created beakers and other lab equipment
Found in the 18th group on periodic table of elements
stands for workplace hazardous material information system
a physical property found in metals and carbon
Number that represents number of electrons and protons in one atom of elements
A higher_________ creates a faster reaction rate
Another word for a mechanical mixture
Comes from the Greek word meaning juice of a plant
the amount of mass in a given volume
A chemical reaction that releases heat
anything with mass or that occupies space
Subatomic particles that are neutrally charged

25 Clues: An Organic Catalyst • matter going from a solid to liquid • the amount of mass in a given volume • Another word for a mechanical mixture • Element that is brittle before heated • the substances that start the reaction • A chemical reaction that releases heat • a system in which the products can escape • anything with mass or that occupies space • ...

MY CROSSWORD >:( 2021-12-02

Across

a chemical that donates a hydrogen
AB + CD → AD + CB
a chemical that accepts a hydrogen
A + BC → AC + B

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Increasing the concentration of one substance favors the reaction that produces less of that substance
A + B → AB
Increasing temperature favors the reaction that absorbs energy.
AB → A + B
AB + oxygen → oxides of A & B +
Increasing pressure favors the reaction that produces less gas.

10 Clues: A + B → AB • AB → A + B • A + BC → AC + B • AB + CD → AD + CB • AB + oxygen → oxides of A & B + • a chemical that donates a hydrogen • a chemical that accepts a hydrogen • Increasing temperature favors the reaction that absorbs energy. • Increasing pressure favors the reaction that produces less gas. • ...

Photosynthesis 2024-05-02

Across

CO2
The process a plant makes to get energy
is a substance that changes in a chemical reaction
What gives a leaf its color
light produced by the sun

Down

When 1 or more substances in changed
a substance that is present at the end of a chemical reaction
reaction When nothing is changed at the atomic level
An organelle that makes photosynthesis happen
H2O

10 Clues: CO2 • H2O • light produced by the sun • What gives a leaf its color • When 1 or more substances in changed • The process a plant makes to get energy • An organelle that makes photosynthesis happen • is a substance that changes in a chemical reaction • reaction When nothing is changed at the atomic level • a substance that is present at the end of a chemical reaction

Chapter 7 vocabulary 2021-12-06

Across

its absorbs the heat energy.
is the amount of substance in the volume
thinsg that form as a reslut of the reaction accures
a process that makes chemical change
its absorbs the heat of the energy.

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it lets chemists know at a glace the reactants
its the amount of the energy in something
Things that are there before the reaction begins
its lets you know how fast a reaction is after it started
things that slow down a chemical reaction

10 Clues: its absorbs the heat energy. • its absorbs the heat of the energy. • a process that makes chemical change • is the amount of substance in the volume • its the amount of the energy in something • things that slow down a chemical reaction • it lets chemists know at a glace the reactants • Things that are there before the reaction begins • ...

Balancing Equations Vocab 2021-01-14

Balancing Equations Vocab crossword puzzle

Across

The symbolic representation of a chemical reaction in the form of symbols
States that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations
To make or produce
When things aren't equal

Down

The number located slightly below and to the side of another character in chemical formulas
A substance that is present at the start of a chemical reaction
To be equal
The substance formed as a result of a chemical reaction
The number in front of the formula, which tells us how many molecules of the formula are present

9 Clues: To be equal • To make or produce • When things aren't equal • The substance formed as a result of a chemical reaction • A substance that is present at the start of a chemical reaction • The symbolic representation of a chemical reaction in the form of symbols • The number located slightly below and to the side of another character in chemical formulas • ...

Properties and Changes of Matter 2024-10-07

Properties and Changes of Matter crossword puzzle

Across

chemical reactions where more energy is required to break the bonds of the reactants than is released when products form
a change in matter in which the substances that make up that matter change into substances with different chemical and physical properties
the ability of a type of matter to burn easily
ability of one material to dissolve in another material
occurs when atoms of one or more substances rearrange to form one or more new substances
the mass of a substance divided by the volume of the substance

Down

the ability to conduct electricity or thermal energy
the reaction of a substance with an oxidizing agent, changing it into a new substance.
a characteristic of matter that can be observed as it changes to a different type of matter
when a substance reacts with another substance, changing it into a new substance
more energy is released when the products form than is required to break the bonds in the reactants
the amount of matter in an object
any characteristics of matter that you can observe without changing the identity of the substances that make it up
the amount of space a substance takes up.
substances that are produced by the chemical reaction
are the starting substances in a chemical reaction

16 Clues: the amount of matter in an object • the amount of space a substance takes up. • the ability of a type of matter to burn easily • are the starting substances in a chemical reaction • the ability to conduct electricity or thermal energy • substances that are produced by the chemical reaction • ability of one material to dissolve in another material • ...

Energy Unit Review 2021-12-20

Across

energy obtained from flowing water.
a source of energy that exists in limited quantities and, once used, cannot be replaced except over the course of millions of years.
the ability to do work.
energy that depends upon an object’s height above a reference point.
the energy associated with electric charges.
rich deposits of hydrocarbons formed underground from the remains of once-living organisms.
a nuclear reaction in which an atomic nucleus is split into two smaller parts.
energy that is stored as a result of position or shape.
thermal energy beneath Earth’s surface.

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the energy stored in chemical bonds.
a cell that generates electricity from a controlled reaction between hydrogen and oxygen.
energy stored in atomic nuclei.
a form of energy consisting of changing electric and magnetic fields.
the energy associated with the motion and position of everyday objects.
potential energy of an object that is stretched or compressed.
a nuclear reaction in which the nuclei of two atoms combine to form a larger nucleus.
the chemical energy stored in living things.
the energy an object has due to its motion.
sunlight that is converted into usable energy.
the practice of finding ways to use less energy or to use energy more efficiently.
a source of energy that can be replaced in a relatively short period of time.
a device that stores energy and then discharges it by converting chemical energy into electricity.
the total potential and kinetic energy of all the particles in an object.

23 Clues: the ability to do work. • energy stored in atomic nuclei. • energy obtained from flowing water. • the energy stored in chemical bonds. • thermal energy beneath Earth’s surface. • the energy an object has due to its motion. • the chemical energy stored in living things. • the energy associated with electric charges. • sunlight that is converted into usable energy. • ...

dnjds 2022-01-27

Across

depends only on the type of matter in a sample and not on the amount.
no shape
a coherent, typically large body of matter with no definite shape.
particle of matter that uniquely defines a chemical element
change of a substance from one physical form to another
gas law pv=nrt
transition of a substance directly from a solid-state to a gas state
fourth state of matter
depends on the amount of matter in a sample
one chemical substance is transformed into one or more different substances
composition is not uniform throughout the mixture
the substances produced at the end of the reaction
amount of mass and space taken up

Down

mass is neither created nor destroyed
takes shape of container
the action of purifying a liquid by a process of heating and cooling.
of a liquid, solution, or gas to a crystal
process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium
a change in properties such as texture, shape, or state
observed or measured without changing the identity of the substance
substance that takes part in and undergoes change during a reaction.
has a definite shape
composition is uniform throughout the mixture
of matter liquid gas solid
substance form of matter that has a constant composition and properties that are constant throughout the sample
combining 2 chemical substances
a substance diffused or suspended in the air
characteristic of a particular substance that can be observed in a chemical reaction.

Chemistry- Semester 2 2024-05-16

Across

this law expresses the relationship between pressure, temperature, and volume
substance which is neither acidic or basic
universal solvent
a heat transfer when warm rises from from cooler either from gases or liquids
contains more dissolved solute than a saturated solution (crystals are formed)
a solution with a relatively high concentration
element present in all acids
a number written in front of a reactant or product of a chemical equation
solute that dissolves in a solvent
homogeneous mixtures
a solution with a relatively low concentration
substances that are formed as a result of a chemical reaction
weak base used to neutralize stomach acidity

Down

a form of energy
this variable has units of mL or L
contains less dissolved solute that a saturated (more solute can be dissolved)
a heat transfer when there is no contact between the heat source and the object being heat
it has never been this cold= zero K
contains the maximum amount of dissolved solute in a solvent
the substance that takes part in or undergoes change in a chemical reaction
the ability to do work or supply heat
the unit that represents the amount of a substance
a heat transfer when two objects are in contact with each other
experimental measurement of the amount of products obtained from a chemical reaction
this law describes the relationship between pressure and volume of a gas
law that talks about how volume and temperature are directly proportional

26 Clues: a form of energy • universal solvent • homogeneous mixtures • element present in all acids • this variable has units of mL or L • solute that dissolves in a solvent • it has never been this cold= zero K • the ability to do work or supply heat • substance which is neither acidic or basic • weak base used to neutralize stomach acidity • ...

Crossword - Science Chapter 5-6 2021-11-25

Crossword - Science Chapter 5-6 crossword puzzle

Across

Properties of matter than can only be seen during a chemical reaction
Generally have a high density
Generally a gas at room temperature
Is sometimes malleable and ductile
A substance made up of one type of particle that can not be further simplified
the change in state from gas to liquid
The change in state from solid to gas
The rapid reaction with oxygen that results in lots of energy
Has a fixed volume and shape

Down

A type of mixture that is not evenly combined
The number of protons in an atom
The slow reaction of metals with oxygen that forms metal oxides
Mass/Volume
The amount of protons and neutrons in total
Has a fixed volume but no fixed shape

15 Clues: Mass/Volume • Has a fixed volume and shape • Generally have a high density • The number of protons in an atom • Is sometimes malleable and ductile • Generally a gas at room temperature • The change in state from solid to gas • Has a fixed volume but no fixed shape • the change in state from gas to liquid • The amount of protons and neutrons in total • ...

Biochem Review 2024-10-06

Across

This element is often referred to as the backbone of life
This macromolecule has four structural levels and is made up of amino acids
a polymer of amino acids
The polymer of this macromolecule are polysaccharides
elements contained in nucleic acids
Chemical reaction which breaks down larger molecules into smaller molecules with addition to water
Triglycerides are composed of fatty acids and . . .
reactant of an enzyme reaction
Glucose and fructose are examples of this monomer
This type of fat has a kinked tail and is liquid at room temperature

Down

structure consists of a nitrogenous base, sugar, and a phosphate group
Catalyzes a chemical reaction
The structural component of cell membranes
Another factor aside from pH and substrate concentration that denatures an enzyme
Elements of carbohydrates

15 Clues: a polymer of amino acids • Elements of carbohydrates • Catalyzes a chemical reaction • reactant of an enzyme reaction • elements contained in nucleic acids • The structural component of cell membranes • Glucose and fructose are examples of this monomer • Triglycerides are composed of fatty acids and . . . • The polymer of this macromolecule are polysaccharides • ...

Biology chapter 2 2023-09-21

Across

- a particle of matter that uniquely defines a chemical element
a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
a relationship between people or groups based on shared feelings, interests, or experiences
the movement of a fluid from an area of higher concentration to an area of lower concentration
any of the class of soluble, crystalline, typically sweet-tasting carbohydrates found in living tissues and exemplified by glucose and sucrose.
a thermodynamic quantity representing the unavailability of a system's thermal energy for conversion into mechanical work, often interpreted as the degree of disorder or randomness in the system
the lowest part or edge of something, especially the part on which it rests or is supported.
a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction
a substance that takes part in and undergoes change during a reaction.
any of a class of organic compounds that are fatty acids or their derivatives and are insoluble in water but soluble in organic solvents. They include many natural oils, waxes, and steroids.
acid the building blocks of proteins
the strength and vitality required for sustained physical or mental activity
chemical compounds that show, in water solution, a sharp taste, a corrosive action on metals, and the ability to turn certain blue vegetable dyes red
a substance which slows down or prevents a particular chemical reaction or other process or which reduces the activity of a particular reactant, catalyst, or enzyme.
a substance made up of only one type of atom, all with the same number of protons
a thing or person that is the result of an action or process.
Change the material involved in the change is structurally the same before and after the change

Down

having electrical or magnetic polarity.
any of a large group of organic compounds that includes sugars, starch, and cellulose, containing hydrogen and oxygen in the same ratio as water (2:1) and used as structural materials and for energy storage within living tissues.
a thing that is composed of two or more separate elements; a mixture.
the sticking together of particles of the same substance.
a compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic structural unit of nucleic acids such as DNA.
Change a change of materials into another, new materials with different properties and one or more than one new substances are formed
a substance made up of various types of particles that occupies physical space and has inertia
the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch
a band of scar tissue that joins two surfaces of the body that are usually separate
compound any of a large class of chemical compounds in which one or more carbon atoms are covalently bound to atoms of other elements, most commonly hydrogen, oxygen or nitrogen.
a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
(with reference to a solid) become or cause to become incorporated into a liquid so as to form a solution

29 Clues: acid the building blocks of proteins • having electrical or magnetic polarity. • the sticking together of particles of the same substance. • a thing or person that is the result of an action or process. • - a particle of matter that uniquely defines a chemical element • a thing that is composed of two or more separate elements; a mixture. • ...

Keyword crossword - Chemistry 2023-10-06

Keyword crossword - Chemistry crossword puzzle

Across

the number (6.02 × 1023)
compounds formed between an element and a halogen, e.g. sodium iodide
a white solid known chemically as calcium oxide
a substance that dissolves in water, producing H+(aq) ions
the process of forming crystals from a saturated solution
a method of rust protection by attachment of blocks of a metal
protein molecules that act as biological catalysts
if two liquids form a completely uniform mixture when added together
a black, solid fossil fuel formed underground
the major ore of iron, iron(III) oxide
an uncharged subatomic particle present in the nuclei of atoms
the electrode in any type of cell at which oxidation
fertilisers to provide the elements nitrogen, phosphorus and potassium
a formula for a compound which shows the simplest ratio of atoms present
term that describes a liquid that evaporates easily;
mixtures of elements (usually metals)
expresses the relationship between the mass of a substance and the volume it occupies:
the energy required to break a particular type of covalent bond
the change of a vapour or a gas into a liquid;
the industrial manufacture of sulfuric acid using the raw materials sulfur and air
the chemical process by which plants synthesise glucose from atmospheric carbon dioxide and water
a word to describe a metallic substance that rings like a bell when hit with a hammer

Down

an acid–base indicator that is colourless in acidic solutions and blue in alkaline solutions
the ability to conduct heat
term that describes substances that do not produce a chemical reaction
a substance added to the soil to replace essential elements lost when crops are harvested,
the minimum energy required to start a chemical reaction
the protection of iron and steel objects by coating with a layer of zinc
sodium aluminium fluoride
a substance which changes colour when added to acidic or alkaline solutions,
a molten mixture of impurities, mainly calcium silicate, formed in the blast furnace
the separation of a solid from a liquid
the number of the vertical column that an element is in on the Periodic Table
an alloy of copper and zinc
the direct change of state from solid to gas or gas to solid: the liquid phase is bypassed
a substance that increases the rate of a chemical reaction
oxide of a metal that will react with acids to neutralise the acid
an insoluble salt formed during a precipitation reaction
an acid–base indicator that is red in acidic and yellow in alkaline solutions
ionic equations showing the reactions at the anode and cathode in an electrolytic cell
elements in Group VIII
a process or chemical reaction in which heat energy is produced
element which shows some of the properties of metals and some of non-metals,
a substance which oxidises another substance during a redox reaction
the central region of an atom
a corrosive substance (e.g. an acid) is one that can dissolve or ‘eat away’ at other materials
scale: a scale running from below 0 to 14
a loose, orange–brown, flaky layer of hydrated iron(III) oxide
anything that occupies space and has mass
a chemical reaction in which water is removed from a compound
an adjective to describe a substance without water combined with it

51 Clues: elements in Group VIII • the number (6.02 × 1023) • sodium aluminium fluoride • the ability to conduct heat • an alloy of copper and zinc • the central region of an atom • mixtures of elements (usually metals) • the major ore of iron, iron(III) oxide • the separation of a solid from a liquid • scale: a scale running from below 0 to 14 • anything that occupies space and has mass • ...

kayley - chemistry 2019-10-18

Across

the basic unit of a chemical element
a thing that is composed of two or more separate elements
characteristic of a substance that may be observed when it participates in a chemical reaction
having assets in excess of liabilities; able to pay one's debts
cloudy
undergoes changes during a reaction
an article or substance that is manufactured or refined for sale
Russian chemist who developed a periodic table of the chemical elements and predicted the discovery of several new elements

Down

a part or aspect of something abstract, especially one that is essential or characteristic
the mass of an atom of a chemical element expressed in atomic mass units
same
final product
different
things you can observe
a gesture of respect, homage, or polite recognition or acknowledgment, especially one made to or by a person when arriving or departing

15 Clues: same • cloudy • different • final product • things you can observe • undergoes changes during a reaction • the basic unit of a chemical element • a thing that is composed of two or more separate elements • having assets in excess of liabilities; able to pay one's debts • an article or substance that is manufactured or refined for sale • ...

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