chemical reaction Crossword Puzzles

Perfect 10 2023-02-27

Across

- a figure or symbol
- a substance takes part in and undergoes change
and closed system - an open and closed can exchange both energy
equation - any chemical reaction the absorbs heat from it environment
reaction- a process that involves rearrangement
- a substance that increases the ruts of a chemical change
- cause(a substance)

Down

- a thing or person the result of an action process
reaction - A chemical reaction a chemical reaction in which less energy is needed
- a multiplier factor that measures heat from it environment
of mass - a principle stating mass cannot be created or destroyed
equation - the symbolic representation of a chemical equation

12 Clues: - a figure or symbol • - cause(a substance) • reaction- a process that involves rearrangement • - a substance takes part in and undergoes change • - a thing or person the result of an action process • - a substance that increases the ruts of a chemical change • - a multiplier factor that measures heat from it environment • ...

NSD -2025 2025-02-24

Across

– A state in which the forward and reverse reactions occur at the same rate.
– Different structural forms of the same element in the same physical state.
– A measure of the disorder or randomness in a system.
– A solution that resists changes in pH when an acid or base is added.
– Atoms of the same element with different numbers of neutrons.
– The substance in which the solute dissolves to form a solution.
– The calculation of reactants and products in a chemical reaction.
– A substance that undergoes change in a chemical reaction.
– An element that lacks metallic properties and is usually a poor conductor.
– An element with properties intermediate between metals and nonmetals.
Forces – Forces of attraction between molecules, including dipole-dipole, hydrogen bonding, and dispersion forces.
– An atom or molecule with a net electric charge due to the loss or gain of electrons.
– A substance that increases the concentration of hydroxide ions (OH⁻) in a solution.
Bond – A bond formed between oppositely charged ions due to electron transfer.
Solution – A solution in which no more solute can dissolve at a given temperature.
Chatelier’s Principle – The principle stating that a system at equilibrium will adjust to counteract changes in conditions.
Solution – A solution that contains more dissolved solute than it can normally hold at a given temperature.
Reactant – The reactant that determines the amount of product formed in a reaction.
– The time required for half of a radioactive substance to decay.
Reaction – A reaction that releases heat into its surroundings.
– The total heat content of a system.
(M) – The concentration of a solution expressed as moles of solute per liter of solution.
– The loss of electrons by an atom or molecule.
– The gain of electrons by an atom or molecule.
– A substance that speeds up a chemical reaction without being consumed.
– A substance made of only one type of atom.
– The smallest unit of an element that retains its chemical properties.
Reaction – A chemical reaction involving both oxidation and reduction.

Down

– A technique used to determine the concentration of a solution by reacting it with a standard solution.
Number – The sum of protons and neutrons in an atom’s nucleus.
Number – the number of particles in one mole of substance.
– A substance formed as a result of a chemical reaction.
– The ability of an atom to attract electrons in a chemical bond.
Reaction – A reaction that absorbs heat from its surroundings.
– A group of two or more atoms chemically bonded together.
Properties – Properties of solutions that depend on the number of solute particles, such as boiling point elevation and freezing point depression..
Number – The number of protons in an atom’s nucleus.
Bond – A chemical bond formed by the sharing of electron pairs between atoms.
– The mixing of atomic orbitals to form new hybrid orbitals.
– A substance that increases the concentration of hydrogen ions (H⁺) in a solution.
– The spontaneous emission of radiation by an unstable atomic nucleus.
– The substance dissolved in a solution.
– An insoluble solid that forms in a solution during a chemical reaction.
– A substance composed of two or more different elements chemically bonded together.
Yield – The ratio of actual yield to theoretical yield expressed as a percentage.
– A homogeneous mixture of solute and solvent.
Free Energy – A thermodynamic quantity indicating the spontaneity of a reaction.
– A measure of the acidity or basicity of a solution on a scale of 0-14.
– An element that is a good conductor of heat and electricity, malleable, and ductile.
– The SI unit for the amount of substance, containing Avogadro’s number of particles.

50 Clues: – The total heat content of a system. • – The substance dissolved in a solution. • – A substance made of only one type of atom. • – A homogeneous mixture of solute and solvent. • – The loss of electrons by an atom or molecule. • – The gain of electrons by an atom or molecule. • Number – The number of protons in an atom’s nucleus. • ...

science 2 2021-09-29

Across

a large organic molecule made up of many atoms
a combination of 2 or more elements connected by bonds
subunit of which nucleic acids are composed; made up of a 5 carbon sugar, a phosphate group, and a nitrogenous base
reactant of an enzyme- catalyzed reaction
energy that is needed to get a reaction started
molecules composed of many monomers makes up macromolecules
negatively charged particle that orbits the nucleus in the electron cloud
substance that speeds up the rate of a chemical reaction
pure substance that consists entirely of one type of atom
basic unit of life
type of bond between atoms in which the electrons are shared
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
substance formed as a chemical reaction
equal to the total number of protons and neutrons in the nucleus of an atom
a reaction that releases energy
small chemical unit that makes up a polymer
the center of an atom, which contains the protons and neutrons

Down

a reaction that absorbs energy
compound made up of carbon, hydrogen, and oxygen atoms, type of nutrient that is the major source of energy for the body
macromolecule made up of amino acids
macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes
compound with an amino group on one end and a carboxyl group on the other end
elements or compounds that enter into a chemical reaction
electron found in the outermost shell of an atom; helps to determine bonding
particle found in the nucleus that has no charge
biological catalyst
process that changes, or transforms, one set of chemicals into another set of chemicals
one or two letter abbreviation for a chemical element name
macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorous
positively charged particle found in the nucleus of an atom

30 Clues: basic unit of life • biological catalyst • a reaction that absorbs energy • a reaction that releases energy • macromolecule made up of amino acids • substance formed as a chemical reaction • reactant of an enzyme- catalyzed reaction • small chemical unit that makes up a polymer • a large organic molecule made up of many atoms • energy that is needed to get a reaction started • ...

Erik_sierra77 2017-10-05

Across

A representation of a chemical reaction in which reactants are wrrten to the left of an arrow that points to the products on the right
Matter is neither created nor destroyed during a chemical reaction
A chemical Reaction in which there is a net release of energy

Down

A chemical Reaction in which there is a net absorption of energy
The minimum energy required in order for a chemical reaction to proceed.
The new materials formed in a chemical reaction
The deterioration of a metal, typically caused by atmospheric oxygen
A measure of how quickly the concentration of products in a chemical reaction increases or the concentration of reactants decreases
A measure of the acidity of a solution
The reacting substances in a chemical reaction

10 Clues: A measure of the acidity of a solution • The reacting substances in a chemical reaction • The new materials formed in a chemical reaction • A chemical Reaction in which there is a net release of energy • A chemical Reaction in which there is a net absorption of energy • Matter is neither created nor destroyed during a chemical reaction • ...

Vocabulary (February 15 - 19, 2021) 2021-02-14

Vocabulary (February 15 - 19, 2021) crossword puzzle

Across

substance produced by chemical reaction
formed when atoms of element different
chemical transformation
change, produces one or more new substances
chemical needed to grow and repair cells
degree of hotness or coldness

Down

sugars and starches
reaction where heat and light given off
smallest unit of substance with substance
unit of measurement for temperature and angle
atoms that have lost or gained electrons
scale sets zero freezing and 100 boiling
produced by changes in atoms or molecules
scale sets 32 as freezing and 212 boiling

14 Clues: sugars and starches • chemical transformation • degree of hotness or coldness • formed when atoms of element different • substance produced by chemical reaction • reaction where heat and light given off • atoms that have lost or gained electrons • scale sets zero freezing and 100 boiling • chemical needed to grow and repair cells • smallest unit of substance with substance • ...

thermochemistry 2018-02-28

Across

the reaction itself
energy released by vibrating objects
quantity of heat needed to change the temperature of 1 gram of a substance by 1C
SI unit of energy
a liquid that has a high specific heat
capacity for doing work or supplying heat
the type of energy stored in a battery
heat content of a system at constant pressure
a unit used to measure heat

Down

the study of heat change that takes place during a chemical reaction
law that states energy cannot be created or destroyed
a reaction that absorbs heat
device used to measure heat absorbed or released during a chemical process
the area around a reaction (the rest of the universe)
a reaction that releases heat into the surroundings
what is lost every time energy is transferred from one type to another

16 Clues: SI unit of energy • the reaction itself • a unit used to measure heat • a reaction that absorbs heat • energy released by vibrating objects • a liquid that has a high specific heat • the type of energy stored in a battery • capacity for doing work or supplying heat • heat content of a system at constant pressure • a reaction that releases heat into the surroundings • ...

chemistry 1 2019-03-18

Across

a colorless liquid or white crystals with a strong unpleasant odor that is used in permanent waving solutions
characteristics that can be determined without a chemical reaction and do not cause a chemical change in the substance
a change in form of physical properties of a substance without a chemical reaction or the creation of a new substance
the concentration of surface active agents
a chemical reaction in which the oxidizing agent is reduced and the reducing agent is oxidized
subatomic particles with a positive charge
a substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound
substance that releases oxygen
alcohols that evaporate easily
the three different physical forms of matter
a chemical reaction that combines a substance with oxygen to produce an oxide
unstable physical mixtures of undissolved particles in a liquid
a stable physical mixture of two or more substances
the measure of the acidity an alkalinity of a substance

Down

oil droplets emulsified in water
a chemical combination of matter in definite proportions
a physical combination of matter in any proportion
the study of substances that contain the element carbon
liquids that are mutually soluble meaning that they can be mixed together to form stable solutions
any substance that occupies spaces spaces and has mass
the quantity of hydrogen ions
subatomic particles with no charge
multiples of ten
a chemical combination of two or more atoms in definite proportions
the substance that is dissolved in a solution
special type of oil used in hair conditioners water resistant lubricants for the skin and nail polish dryers
the substance that dissolves the solute and makes it a solution

27 Clues: multiples of ten • the quantity of hydrogen ions • substance that releases oxygen • alcohols that evaporate easily • oil droplets emulsified in water • subatomic particles with no charge • the concentration of surface active agents • subatomic particles with a positive charge • the three different physical forms of matter • the substance that is dissolved in a solution • ...

Falling Into Chemistry 2023-12-15

Across

The force exerted by a gas per unit surface area.
A subatomic particle found in the nucleus with no electric charge.
A reaction where one element takes the place of another element in a compound.
A basic process in which substances undergo change to form different substances.
A law stating that pressure of a gas is inversely proportional to its volume at constant temperature.
Smallest unit of a chemical element.
Negatively charged subatomic particle orbiting the nucleus.
The law that describes the relationship between the temperature, volume, and pressure of a gas.
The amount of space that a substance or object occupies.
A unit of measurement for substances in chemistry based on the number of entities in a sample.
Digitally meaningful figures in a measurement.
The measure of the quantity of product formed in a reaction.
A law that describes how gases expand when heated at constant pressure.
Analysis The process of using units to solve problems involving measurements.
The quantitative relationship between reactants and products in a chemical reaction.
The state in which both reactants and products are present in concentrations that have no further tendency to change with time.
The loss of electrons or an increase in oxidation state by a molecule, atom, or ion.
A group of atoms bonded together.
The number representing the amount of units in one mole of substance.
Decay The process by which a nucleus emits particles or energy.
Atoms of the same element with different numbers of neutrons.
The area around the nucleus of an atom where electrons are likely to be found.

Down

A reaction where ions are exchanged between two compounds forming new compounds.
The systematic examination of data to determine principles and outcomes.
The gain of electrons or a decrease in oxidation state by a molecule, atom, or ion.
The mass of one mole of a substance.
A substance that takes part in and undergoes change during a reaction.
The time it takes for half of a radioactive substance to decay.
The principle stating that matter is not created or destroyed during a chemical reaction.
A statistical distribution of speeds of particles in a gas.
A substance formed as a result of a chemical reaction.
A reaction in which one element or compound replaces another in a compound.
A reaction where a fuel combines with oxygen, releasing heat and light.
A chemical reaction in which a single compound breaks down into two or more simpler products.
Energy possessed by an object due to its motion.
The reagent that is completely consumed in a chemical reaction and limits the amount of product.
A preliminary explanation for a phenomenon used as a basis for further investigation.
A chemical reaction where two or more simple substances combine to form a more complex product.
Positively charged subatomic particle in the nucleus.
A model that describes the behavior of gases in terms of particles in motion.

40 Clues: A group of atoms bonded together. • The mass of one mole of a substance. • Smallest unit of a chemical element. • Digitally meaningful figures in a measurement. • Energy possessed by an object due to its motion. • The force exerted by a gas per unit surface area. • Positively charged subatomic particle in the nucleus. • ...

Emily Puzzo 2019-06-12

Across

positive ion
the production of chemical compounds by reaction from simpler materials
found on the periodic table
1s2 2s2 2p6 3s2
two nonmetals
H2 + O = H2O
subtance at the beginning of reaction
negative ion
rapid chemical combination of a substance with oxygen involving the production of heat and light
arrow
produced at the end of the reaction

Down

s
each side has the same amount of elements
l
CH4 + 2O2 ____ CO2 + 2H2O
g
single element gets replaced in compound
chemical reaction where 2 compounds react and the cation and anion of the 2 reactants switch places
2 or more atoms bonded together
the symbol (aq) indicates a substance is dissolved in water
mass that doesnt get destroyed nor created
elements having 8 electrons
shows how many of each molecule there is
a single compound break down into 2 or more simpler substances
two atoms bonded together
metal and nonmetal
number written on bottom right of element

27 Clues: s • l • g • arrow • positive ion • H2 + O = H2O • negative ion • two nonmetals • 1s2 2s2 2p6 3s2 • metal and nonmetal • CH4 + 2O2 ____ CO2 + 2H2O • two atoms bonded together • found on the periodic table • elements having 8 electrons • 2 or more atoms bonded together • produced at the end of the reaction • subtance at the beginning of reaction • single element gets replaced in compound • ...

TY Chemistry 2017-09-26

Across

Chemical name for soap.
Water that contains a lot of Ca and Mg
Elements have a unique colour of light due to this.
Element made to investigate the speed of a reaction.
Factor that affects the speed of a chemical reaction.
Plastic was made from this protein in milk.
Famous example of Carbon-14 dating
Oil used in the making of soap.
Chemical symbol for table salt.
Use of elements having a different colour when burnt.
Green in colour in a flame.
Crimson in colour in a flame.

Down

Instrument used to measure acidity of indigestion remedies.
Process of making soap.
Added to milk to form plastic.
Smell of the element made in recent experiment to investigate speed of reaction.
Acid used to test rocks for hardness.
Different form of same element.
Speeds up a reaction.
Use of carbon isotope.
Element that causes hardness in water.
Element that can be found in water but is toxic.

22 Clues: Speeds up a reaction. • Use of carbon isotope. • Process of making soap. • Chemical name for soap. • Green in colour in a flame. • Crimson in colour in a flame. • Added to milk to form plastic. • Different form of same element. • Oil used in the making of soap. • Chemical symbol for table salt. • Famous example of Carbon-14 dating • Acid used to test rocks for hardness. • ...

Davis 4.1.3 Enzymes 2024-02-07

Across

Many enzymes have this ending
What allows us to digest food while living
Speeds up chemical rections
The molecule the enzyme acts on
A factor that denatures an enzyme
Enzymes activate ________ reactions.
When an enzyme is denatured, it can no longer ____.
Enzymes are _________, not used up in a reaction
Enzymes _______ activation energy.
An enzyme is a ________.
Name of hypothesis of enzyme functioning
The new substrate name after catalyzing a reaction

Down

The scale showing the acidic and basicness of something
Enzymes are needed for this action
8-14 on ph scale
7 on ph scale
Energy needed to start a reaction
Enzymes can _____, build, and rearrange molecules
Enzyme binds to substrate
Enzymes ______ up a reaction.
When the substrate can no longer bind to the enzyme.
Enzymes are made up of _____________.
The correct enzyme shape to do its job
Enzymes control this part of chemical reactions
1-6 on ph scale

25 Clues: 7 on ph scale • 1-6 on ph scale • 8-14 on ph scale • An enzyme is a ________. • Enzyme binds to substrate • Speeds up chemical rections • Many enzymes have this ending • Enzymes ______ up a reaction. • The molecule the enzyme acts on • Energy needed to start a reaction • A factor that denatures an enzyme • Enzymes are needed for this action • Enzymes _______ activation energy. • ...

IMFs & Rxns 2022-04-11

Across

the only parts of a chemical equation you are allowed to change while balancing
in a chemical equation, this number goes in front of a chemical formula to indicate how many molecules are required to balance the equation
in a chemical formula, this number indicates how many of that atom or group are required to make that molecule
an attractive force between all molecules, the dominant attractive force between nonpolar molecules
molecules with four regions of electron density around a central atom's valence shell have this geometry
a chemical reaction where an ionic substance has one of its ions replace with a new one
in a molecule, orbitals combine and form new degenerate orbitals
polar liquids will climb the walls of a thin glass tube
required for combustion
the electric charge on an electron
a chemical reaction that uses 1 compound to make two or more simpler substances
the electric charge on a proton
molecules with five regions of electron density around a central atom's valence shell, but only four of them are bonds have this geometry
one of many chemicals that is composed of *mostly* carbons and hydrogens, generally required for combustion
a collection of atoms that are covalently bonded to one another
these elements react with water in a single-replacement reaction
six orbitals that form octahedral geometry
molecules with four regions of electron density around a central atom's valence shell, but only two of them are bonds have this geometry
the most electronegative atom
three orbitals that form trigonal planar geometry
a molecule that has a slightly positive side and a slightly negative side
a mixture of metal and metal oxide that can undergo a VERY HOT single replacement reaction
this process will decompose water into hydrogen and oxygen gases
IMFs determine how many drops of a liquid can be placed on a penny

Down

sulfur hexachloride's geometry
this type of chemical reaction generally uses oxygen and releases carbon dioxide
orbitals that have the same energy
weak IMFs will cause faster drying
a chemical reaction that uses pure elements to make compounds
polar molecules will rotate and be attracted to these
these electrons are the ones involved in forming chemical bonds
an attractive force between a polar molecule and a nonpolar molecule
when a molecule has one or more bonds between hydrogen and oxygen, fluorine, or nitrogen it experiences this attractive force
this type of reaction usually requires energy
all the atoms you start a chemical reaction with should still be there at the end
a molecule that does not have a distinct positive or negative side
an attractive force between polar molecules
this property determines if two atoms will form an ionic, polar or nonpolar covalent bond
a chemical reaction where two ionic substances swap anions (or cations)
four orbitals that form tetrahedral geometry
hydrogen peroxide slowly decomposes, we add this to make chemical reactions go faster

41 Clues: required for combustion • the most electronegative atom • sulfur hexachloride's geometry • the electric charge on a proton • orbitals that have the same energy • weak IMFs will cause faster drying • the electric charge on an electron • six orbitals that form octahedral geometry • an attractive force between polar molecules • four orbitals that form tetrahedral geometry • ...

Chemistry 1128 crossword 2026-02-11

Chemistry 1128 crossword crossword puzzle

Across

energy required to transform reactants into an activated complex
The transfer of heat
Free energy is the change in enthalpy minus the product of the ______ temperature and the entropy change.
Reactants with low ___ tend to remain unreactive.
the type of energy lost due to friction during energy conversion.
activation energy is large and enthalpy change is positive in this type of reaction
An object loses _____ energy as it moves to a lower position.
The study of heat energy changes related to chemical reactions
Disorder or randomness of a system

Down

Chemical energy is stored in the chemical ____ of an object.
The change in ______ affects the equilibrium constant.
A substance that increases the rate of a chemical reaction, but is not consumed in the process, is called a ______.
Combustion reactions usually proceed faster if placed in this kind of environment.
The energy of motion
A negative enthalpy of formation means heat is ____ by the formation of a compound
A system is a sample of _____ and energy under observation.
Chemical bonds are broken when two compounds react and _____ bonds are formed
point of no further change
Slows down a chemical reaction.
must be applied to break chemical bonds and released when bonds are formed

20 Clues: The transfer of heat • The energy of motion • point of no further change • Slows down a chemical reaction. • Disorder or randomness of a system • Reactants with low ___ tend to remain unreactive. • The change in ______ affects the equilibrium constant. • A system is a sample of _____ and energy under observation. • ...

Chemistry 1000 Extra Credit 2023-05-17

Chemistry 1000 Extra Credit crossword puzzle

Across

The smallest unit of matter with unique properties.
Relating to the sharing of electron pairs between atoms.
table A tabular arrangement of elements based on their properties.
A substance composed of two or more different elements.
Relating to compounds containing carbon and usually hydrogen.
The study of the quantitative relationships in chemical reactions.
Two or more atoms bonded together.

Down

reaction A process that transforms substances into new substances.
A state of balance in a chemical reaction.
Relating to ions or compounds formed by the transfer of electrons.
The process of joining atoms together to form molecules or compounds.
A measure of the acidity or basicity of a solution.
A substance that accepts protons (H⁺) in a chemical reaction.
A substance that donates protons (H⁺) in a chemical reaction.
A substance composed of only one type of atom.

15 Clues: Two or more atoms bonded together. • A state of balance in a chemical reaction. • A substance composed of only one type of atom. • The smallest unit of matter with unique properties. • A measure of the acidity or basicity of a solution. • A substance composed of two or more different elements. • Relating to the sharing of electron pairs between atoms. • ...

Chemical Reactions 2022-11-04

Across

the amount of a product produced by a chemical reaction compared to the amount of reactant
a chemical compound that is produced in a chemical reaction
a chemical that accelerates a chemical reaction without being consumed in the reaction
an instrument that can measure the amount of light of a specific wavelength that is absorbed by a chemical compound
bonds the forces between atoms that hold those atoms together to form compounds

Down

a description of a chemical compound using the letter designations of the elements
equation Describes a chemical reaction by indicating the formulas of all reactants and products
a chemical compound that is consumed in a chemical reaction
anything with mass and volume
an insulated container that prevents a chemical reaction from gaining heat from its surroundings or losing heat to its surroundings
the smallest particle of matter that still retains the properties of an element

11 Clues: anything with mass and volume • a chemical compound that is consumed in a chemical reaction • a chemical compound that is produced in a chemical reaction • the smallest particle of matter that still retains the properties of an element • bonds the forces between atoms that hold those atoms together to form compounds • ...

Redox Reaction 2020-07-01

Across

Electrochemical cell in which a spontaneous chemical reaction causes a flow of electrons
A system in which there's an electric current flowing while a chemical reaction occurs.
Part of a voltaic cell that connects two containers and allows flow of ions.
An oxidation-reduction reaction.
A substance that tends to bring about reduction by being oxidized and losing electrons.
Number assigned to keep track of electron gain or loss in redox reactions.

Down

A substance that tends to bring about oxidation by being reduced and gaining electrons.
Reaction that shows either the oxidation or reduction portion of a redox reaction.
Site at which oxidation or reduction; an anode or cathode.
The negatively charged electrode of an electrical device.
A process in which an electric current forces a nonspontaneous reaction to occur.
The loss of electron.
A cell that requires a nonspontaneous chemical reaction to occur (uses battery).
The positively charged electrode of an electrical device.
The gain of electron.

15 Clues: The loss of electron. • The gain of electron. • An oxidation-reduction reaction. • The negatively charged electrode of an electrical device. • The positively charged electrode of an electrical device. • Site at which oxidation or reduction; an anode or cathode. • Number assigned to keep track of electron gain or loss in redox reactions. • ...

chemistry 1 2019-03-18

Across

subatomic particles with a positive charge
a physical combination of matter in any proportion
multiples of ten
the study of substances that contain the element carbon
substance that releases oxygen
characteristics that can be determined without a chemical reaction and do not cause a chemical change in the substance
a stable physical mixture of two or more substances
a change in form of physical properties of a substance without a chemical reaction or the creation of a new substance
the substance that is dissolved in a solution
any substance that occupies spaces spaces and has mass
subatomic particles with no charge

Down

liquids that are mutually soluble meaning that they can be mixed together to form stable solutions
a chemical combination of two or more atoms in definite proportions
a chemical combination of matter in definite proportions
alcohols that evaporate easily
a chemical reaction in which the oxidizing agent is reduced and the reducing agent is oxidized
a substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound
a chemical reaction that combines a substance with oxygen to produce an oxide
the substance that dissolves the solute and makes it a solution
a colorless liquid or white crystals with a strong unpleasant odor that is used in permanent waving solutions
special type of oil used in hair conditioners water resistant lubricants for the skin and nail polish dryers
the quantity of hydrogen ions
the concentration of surface active agents
the three different physical forms of matter
the measure of the acidity an alkalinity of a substance
unstable physical mixtures of undissolved particles in a liquid

26 Clues: multiples of ten • the quantity of hydrogen ions • alcohols that evaporate easily • substance that releases oxygen • subatomic particles with no charge • subatomic particles with a positive charge • the concentration of surface active agents • the three different physical forms of matter • the substance that is dissolved in a solution • ...

chemistry 2 2019-03-18

Across

the measure of the acidity an alkalinity of a substance
special type of oil used in hair conditioners water resistant lubricants for the skin and nail polish dryers
a physical combination of matter in any proportion
alcohols that evaporate easily
a substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound
a colorless liquid or white crystals with a strong unpleasant odor that is used in permanent waving solutions
the quantity of hydrogen ions
a stable physical mixture of two or more substances
a chemical reaction in which the oxidizing agent is reduced and the reducing agent is oxidized
the study of substances that contain the element carbon
substance that releases oxygen
the three different physical forms of matter

Down

a change in form of physical properties of a substance without a chemical reaction or the creation of a new substance
unstable physical mixtures of undissolved particles in a liquid
a chemical combination of two or more atoms in definite proportions
a chemical combination of matter in definite proportions
liquids that are mutually soluble meaning that they can be mixed together to form stable solutions
the concentration of surface active agents
the substance that is dissolved in a solution
characteristics that can be determined without a chemical reaction and do not cause a chemical change in the substance
the substance that dissolves the solute and makes it a solution
any substance that occupies spaces spaces and has mass
subatomic particles with a positive charge
multiples of ten
a chemical reaction that combines a substance with oxygen to produce an oxide
subatomic particles with no charge

26 Clues: multiples of ten • the quantity of hydrogen ions • alcohols that evaporate easily • substance that releases oxygen • subatomic particles with no charge • the concentration of surface active agents • subatomic particles with a positive charge • the three different physical forms of matter • the substance that is dissolved in a solution • ...

chemistry 2 2019-03-18

Across

the substance that dissolves the solute and makes it a solution
special type of oil used in hair conditioners water resistant lubricants for the skin and nail polish dryers
liquids that are mutually soluble meaning that they can be mixed together to form stable solutions
multiples of ten
a physical combination of matter in any proportion
a chemical reaction in which the oxidizing agent is reduced and the reducing agent is oxidized
subatomic particles with no charge
the three different physical forms of matter
the quantity of hydrogen ions
a stable physical mixture of two or more substances
the concentration of surface active agents
any substance that occupies spaces spaces and has mass

Down

subatomic particles with a positive charge
a chemical combination of two or more atoms in definite proportions
a colorless liquid or white crystals with a strong unpleasant odor that is used in permanent waving solutions
a substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound
characteristics that can be determined without a chemical reaction and do not cause a chemical change in the substance
unstable physical mixtures of undissolved particles in a liquid
the study of substances that contain the element carbon
alcohols that evaporate easily
a change in form of physical properties of a substance without a chemical reaction or the creation of a new substance
substance that releases oxygen
a chemical combination of matter in definite proportions
a chemical reaction that combines a substance with oxygen to produce an oxide
the substance that is dissolved in a solution
the measure of the acidity an alkalinity of a substance

Stoichiometry 2023-10-23

Across

a small portion of matter
two or more chemical elements put together
the basic unit of a chemical element
left over reactant from the reaction
the amount of product you should get after the reaction (prediction)
the number in front of the formula
a group of 2 or more atoms
elements that make up a compound, or element part of an equation
compares theoretical yield to actual yield
one or two letters representing a chemical element
the outcome of the reaction

Down

numbers that come after a symbol and below it
a substance used in a reaction
equal on both sides of an equation
rearrangement of molecules
the conversion of amount of one substance to amount of another
scientific measurement for measuring large quantities of small entities
the amount of matter in an object
reactant that limits how much product you can have
things listed on the periodic table

20 Clues: a small portion of matter • rearrangement of molecules • a group of 2 or more atoms • the outcome of the reaction • a substance used in a reaction • the amount of matter in an object • equal on both sides of an equation • the number in front of the formula • things listed on the periodic table • the basic unit of a chemical element • left over reactant from the reaction • ...

Exam Study Guide 2020-01-17

Across

Used to store energy for the planet and the oxygen is released in the atmosphere
Something that acts like a storage source
Resulting from living things
Accompanied by the release of heat
The substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
The process of burning something
Chemical process formed by plants
Accompanied by or requiring the absorption of heat
The waste and remains of living organisms
The production of chemical compounds by reaction from simpler materials
dioxide Greenhouse gas
Not derived from living organisms

Down

The transfer of carbon through the organisms in a food web
The minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction
respiration Chemical process performed by plants and animals
The central most important part of an object;center
Come from dead remains of ancient plants and animals
Positive electrical charged particle
The process by which organic substances are broken down into simpler organic matter
Negative charged particle

20 Clues: dioxide Greenhouse gas • Negative charged particle • Resulting from living things • The process of burning something • Chemical process formed by plants • Not derived from living organisms • Accompanied by the release of heat • Positive electrical charged particle • Something that acts like a storage source • The waste and remains of living organisms • ...

Physical Science 2021-04-27

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the first element on the periodic table
liquids sometimes combine to form this solid
symbol Ag
a measure of a liquids resistance to flow
measure of the amount of matter in a object
the amount of space an object takes up
found on the periodic table
right side of the periodic table
atomic number 79
product of photosynthesis

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changes form but not chemical identity
a characteristic of a substance that can be observed without changing identity
the temperature where a object changes from solid to liquid
base for all life on earth
left side of the periodic table
atoms are close together and barely moving
results from a chemical reaction
a sign of a chemical reaction
Vibrate and move past each other
the same as the atomic number
group 18 of the periodic table
sign of a chemical reaction
the amount of mass in a given space
Vibrate and move freely
calculate by subtracting atomic number from atomic mass

25 Clues: symbol Ag • atomic number 79 • Vibrate and move freely • product of photosynthesis • base for all life on earth • found on the periodic table • sign of a chemical reaction • a sign of a chemical reaction • the same as the atomic number • group 18 of the periodic table • left side of the periodic table • results from a chemical reaction • right side of the periodic table • ...

Chemical Reactions 2024-02-12

Across

A representation of a chemical reaction.
A reaction where two reactants both swap parts.
The process of gaining electrons
A phase of matter where the particles are close together and can't move freely.
A reaction is ________ when there are equal numbers of each element on both sides of a chemical equation.
A phase of matter where the particles are close together but can move around.
A phase of matter where the particles are far apart and move freely.
The process of losing electrons

Down

A whole number representing the number of a substance present in a reaction.
A reaction where a reactant swaps places with a part of another reactant.
A reaction where one reactant splits into two or more products.
A product that can't be dissolved in water.
An exothermic reaction involving a fuel and oxygen.
A substance is ________ when its dissolved in water.
A substance present at the end of a reaction.
Some reactions require the addition of ________ to get started.
A reaction where two or more reactants form one product.
A substance present at the start of a reaction.

18 Clues: The process of losing electrons • The process of gaining electrons • A representation of a chemical reaction. • A product that can't be dissolved in water. • A substance present at the end of a reaction. • A reaction where two reactants both swap parts. • A substance present at the start of a reaction. • An exothermic reaction involving a fuel and oxygen. • ...

Chemical Compounds 2016-01-16

Across

Shape of BBr3.
Ag, Zn, Al are examples of this.
Br2, I2, N2, Cl2, H2, O2, F2
A number or symbol multiplied with a variable.
Substance that is formed ion a chemical reaction.
when a compounds' shape IS symmetrical.
Physical property.
Zn + 2HCl -> ZnCl2 + H2
Na + Cl -> NaCl
HCl + AgNO3 -> AgCl + HNO3
Matter can't be created or destroyed.
The driving force for an electron (Ex. Mg2+).
Shape of H2O.
When an elements' charge is increased in a chemical equation.
Shape of CH4.
C2H3O2 -> CO2 + H2O

Down

Zncl2 is an example of this.
Shape of NCl3.
When an elements' charge is reduced in a chemical equation.
2NaCl -> 2Na + Cl2
A basic unit of a chemical element.
A metal by itself in a chemical equation.
When a compounds' shape is NOT symmetrical.
Substance that changes in a chemical reaction.
A single hydrogen atom is one of these.
The process of reactants forming a product.
The type of bond formed when Zn(NO3)2 is produced.
A useful guide for predicting products of metal displacement.
Symbolic representation of a chemical reaction.
The type of bond formed in NaCl.
Shape of BeH2.
A lasting attraction between atoms.

32 Clues: Shape of H2O. • Shape of CH4. • Shape of BBr3. • Shape of NCl3. • Shape of BeH2. • Na + Cl -> NaCl • 2NaCl -> 2Na + Cl2 • Physical property. • C2H3O2 -> CO2 + H2O • Zn + 2HCl -> ZnCl2 + H2 • HCl + AgNO3 -> AgCl + HNO3 • Zncl2 is an example of this. • Br2, I2, N2, Cl2, H2, O2, F2 • Ag, Zn, Al are examples of this. • The type of bond formed in NaCl. • A basic unit of a chemical element. • ...

Revision 2021-10-20

Across

THE CHEMICALS THAT ARE FORMED IN A CHEMICAL REACTION
MEANING THE CHANGE CAN BE UNDONE
LOGS BURNING IS AN EXAMPLE OF A ___________ CHANGE
THE ACID IN LEMONS
WHEN ATOMS OF DIFFERENT ELEMENTS JOIN TOGETHER BY CHEMICAL BONDS
A BASE THAT CAN BE DISSOLVED IN WATER
A SUBSTANCE WITH A PH OF LESS THAN 7
A SUBSTANCE WITH A PH OF 7
AN INDICATOR THAT DETERMINES THE STRENGTH OF AN ACID/BASE
CHEMICAL SYMBOL Fe
THE SMALLEST UNIT OF MATTER
WHEN AN ACID AND BASE ARE MIXED TOGETHER

Down

WHEN SUBSTANCE ARE MIXED TOGETHER NOT CHEMICALLY COMBINED
K IS THE CHEMICAL SYMBOL FOR THIS ELEMENT
MELTING IS AN EXAMPLE OF A _________ CHANGE
THE CHEMICALS THAT REACT TOGETHER IN A CHEMICAL REACTION
THE ACID IN VINEGAR
A BASE USED TO CLEAN
AN ACID OFTEN USED IN THE LAB
AN INDICATOR THAT TURNS RED OR BLUE ONLY
A SUBSTANCE WITH A PH OF GREATER THAN 7
A SUBSTANCE MADE UP OF ONLY ONE TYPE OF ATOM
THE ELEMENT IN GROUP 7 PERIOD 2 OF THE PERIODIC TABLE
CO2
WE USE THE ____________ TABLE TO FIND ELEMENTS
__________ IS OFTEN A SIGN OF A CHEMICAL REACTION TAKING PLACE

26 Clues: CO2 • THE ACID IN LEMONS • CHEMICAL SYMBOL Fe • THE ACID IN VINEGAR • A BASE USED TO CLEAN • A SUBSTANCE WITH A PH OF 7 • THE SMALLEST UNIT OF MATTER • AN ACID OFTEN USED IN THE LAB • MEANING THE CHANGE CAN BE UNDONE • A SUBSTANCE WITH A PH OF LESS THAN 7 • A BASE THAT CAN BE DISSOLVED IN WATER • A SUBSTANCE WITH A PH OF GREATER THAN 7 • AN INDICATOR THAT TURNS RED OR BLUE ONLY • ...

chemistry 1 2019-03-18

Across

the substance that is dissolved in a solution
a chemical reaction that combines a substance with oxygen to produce an oxide
a change in form of physical properties of a substance without a chemical reaction or the creation of a new substance
oil droplets emulsified in water
a chemical combination of matter in definite proportions
unstable physical mixtures of undissolved particles in a liquid
the quantity of hydrogen ions
the substance that dissolves the solute and makes it a solution
any substance that occupies spaces spaces and has mass
the three different physical forms of matter
alcohols that evaporate easily
special type of oil used in hair conditioners water resistant lubricants for the skin and nail polish dryers
a chemical combination of two or more atoms in definite proportions
the measure of the acidity an alkalinity of a substance

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a stable physical mixture of two or more substances
a colorless liquid or white crystals with a strong unpleasant odor that is used in permanent waving solutions
a chemical reaction in which the oxidizing agent is reduced and the reducing agent is oxidized
the study of substances that contain the element carbon
characteristics that can be determined without a chemical reaction and do not cause a chemical change in the substance
a substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound
subatomic particles with no charge
multiples of ten
the concentration of surface active agents
a physical combination of matter in any proportion
substance that releases oxygen
liquids that are mutually soluble meaning that they can be mixed together to form stable solutions
subatomic particles with a positive charge

Unit B- Matter and Chemical Change 2018-11-12

Unit B- Matter and Chemical Change crossword puzzle

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substances that go into a chemical reaction
substances produced by a chemical reaction
a change in which one or more new chemical substances are formed
pure substances that are made up of two or more elements chemically combined together; can be broken down into elements again by chemical means
a process in which a substance is changed into one or more new substances
a pure substance made up of one type of particle, cannot be broken down into simpler substances by means of a chemical change
formed when atoms transfer electrons to or from other atoms
a group of related elements that have similar properties
elements with properties in between metals and non-metal
compounds made of two elements
molecules made of two atoms of the same element
the total number of protons and neutrons in the nucleus

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the center of the atom; contains the protons and neutrons
the ability of a substance to carry an electrical current
positively charged particle found inside the atomic nucleus
a formula that shows the number and types of atoms in a molecule
smallest independent unit of a pure substance, generally a cluster of atoms formed together
the number of protons in the nucleus of an atom
a characteristic of matter that describes how it reacts when undergoing a chemical change
formed when atoms share electrons
uncharged particles in the atomic nucleus
change in form but not in chemical composition; no new substances are formed
a substance that speeds up a chemical reaction without being used up in a reaction
the average mass of an atom of an element

24 Clues: compounds made of two elements • formed when atoms share electrons • uncharged particles in the atomic nucleus • the average mass of an atom of an element • substances produced by a chemical reaction • substances that go into a chemical reaction • the number of protons in the nucleus of an atom • molecules made of two atoms of the same element • ...

Chemical Reactions & Equations 2024-05-05

Chemical Reactions & Equations crossword puzzle

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Insoluble substance formed after a reaction
A chemical reaction in which a product is a gas
Term for . C₆H₁₂O₆ + O₂ → CO₂ + H₂O
ClO₄
Reactant used in Black & White photography
Cr₂O₇
Aqueous solution of CaCO₃ & Water
H₂O₂
KMnO₄
NH₄

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When Cao is mixed with water to form Ca(OH)₂
Reactions between an Acid and a Base
Another name for double displacement reaction
CH₄
The least reactive metal of reactivity series
A type of chemical reaction related to Fe₂O₃
A shiny metal upon burning gives a dazzling white flame

17 Clues: CH₄ • NH₄ • ClO₄ • H₂O₂ • Cr₂O₇ • KMnO₄ • Aqueous solution of CaCO₃ & Water • Reactions between an Acid and a Base • Term for . C₆H₁₂O₆ + O₂ → CO₂ + H₂O • Reactant used in Black & White photography • Insoluble substance formed after a reaction • When Cao is mixed with water to form Ca(OH)₂ • A type of chemical reaction related to Fe₂O₃ • Another name for double displacement reaction • ...

Chemistry Unit Vocabulary Review 2025-02-11

Chemistry Unit Vocabulary Review crossword puzzle

Across

found in nucleus, positive charge
conductive, shiny, easily shaped
The vertical columns that contain elements on the periodic table; have similar chemical properties
Electrons found in the outer energy level of the electron cloud, responsible for chemical properties
One or two letter combination that represents an element.
A solid separated from a solution
Ability to pass heat or electricity
"energy levels" where electrons orbit at specific distances from the nucleus
Center of an atom that has the protons and neutrons
found in nucleus, no charge
found outside nucleus, negative charge
Ability to be pulled into a wire
State of matter composed of freely moving molecules capable of indefinite expansion
Chemical reaction that releases heat-gets warmer during the reaction
Basic substance that cannot be broken down into smaller parts
The smallest unit of an element (building block of all matter!)
has properties of both metals and non metals
The atoms or molecules on the right side of a chemical equation; the new substance that is formed
A mixture that is uniform throughout (salt water)
The large number in front of a chemical symbol in a chemical formula
first group on periodic table most reactive, one valance electron
Allows portion of the gases or atoms to escape during an experiment. (no lid) Reactants may be heaver than product due to some escapeing as a gas.
7th group on the periodic table 7 valance electrons
The horizontal rows that contain elements on the periodic table; arranged by atomic number
Color, harness, boiling point, state of matter, anything that can be observed without changing it.

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Protons Positive Neutrons Neutral and Electrons negative
Group 18 on the periodic table, non reactive
Protons plus the neutrons
Shininess
Chemical reaction that absorbs heat-gets colder during the reaction
State of matter composed of tightly packed molecules
Keeps all the atoms in a closed container, the reactants will always equal product
The principle states that matter cannot be created or destroyed in a closed system (atoms may be rearranged)
When a chemical change occurs and forms a new substance
The atoms or molecules on the left side of a chemical equation that you begin a chemical reaction with
A mixture that is not uniform throughout (sand)
Ability to be hammered, pressed, or rolled into a shape
Number of protons in an atom; determines the type of element
not conductive, gas at room temperature (usually)
State of matter composed of freely moving molecules that do not usually separate
the small number on the bottom right side of a chemical symbol. (acts like an exponent)
second group on the periodic table very reactive
A symbolic representation of one set of compounds reacting together to form a new set of compounds
Characteristic that is observed during a chemical reaction.
A chemical substance composed of two or more atoms of different elements
A compound that includes carbon and is essential for any living thing
A chart illustrating chemical elements that compose all physical matter; listed by atomic number and related groups
How much a chemical reaction can produce, shown by an arrow
A group of atoms bonded together, often representing the smallest unit of a compound

49 Clues: Shininess • Protons plus the neutrons • found in nucleus, no charge • conductive, shiny, easily shaped • Ability to be pulled into a wire • found in nucleus, positive charge • A solid separated from a solution • Ability to pass heat or electricity • found outside nucleus, negative charge • Group 18 on the periodic table, non reactive • ...

chapter 5 crossword 2020-03-04

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something that slows down a reaction by increasing the activation energy
a reaction where substances combine to create a more complex substance
the amount of a substance relating to the amount of the other substance
a change that changes something into a different substance
a system that can be contaminated does not represent the locom
the rule that mass is neither destroyed nor created
the thing that are used in a reaction
a reaction that releases energy
a number that indicates how many of a substance is present
the energy required to start a reaction
combo of numbers and letters that displays a certain chemical
a change that does not affect the substance that a product is made of only the physical properties

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a system that demonstrates the locom
something that speeds up a reaction by lowering the activation energy
a type of chemical reaction here the reactants break down
a reaction where molecules are replaced by other molecules
a reaction that requires energy from the surroundings to sustain itself
a solid made from a liquid
what is left after a reaction takes place

19 Clues: a solid made from a liquid • a reaction that releases energy • a system that demonstrates the locom • the thing that are used in a reaction • the energy required to start a reaction • what is left after a reaction takes place • the rule that mass is neither destroyed nor created • a type of chemical reaction here the reactants break down • ...

Vocab Unit 4 Practice 2023-12-13

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A natural catalyst used by living things that can be used to speed up the digestion process.
Another name for a molecule that that refers to when 2 atoms bond together.
Occurs when atoms gain oxygen in a chemical reaction
This law states that in a chemical reaction, mass(atoms) cannot be created or destroyed.
This type of reaction only includes carbon, hydrogen and oxygen.
A reaction in which, under the right conditions, the products can be turned back into the reactants.
A reaction in which the products can never be turned back into the reactants.
A substance which speeds up a chemical reaction without being changed by the reaction.
A bond that transfers electrons between a metal and a nonmetal.

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Refers to a type of reaction that is broken down from one compound to two separate parts.
A reaction that gains hydrogen atoms but loses oxygen atoms.
A bond that shares electrons between to metals or two non metals.
Refers to a type of reaction when 2 elements come together to create one product.
this principle states that if a change is made to one side of a reaction then the other side must counter the effects of that change.
The point at which the rate of the reaction matches the rate of the backwards reaction.
A reaction where both oxidation and reduction occur
An atom or group of atoms that has become charged by gaining or losing one or more electrons. (it is looking to bond)

17 Clues: A reaction where both oxidation and reduction occur • Occurs when atoms gain oxygen in a chemical reaction • A reaction that gains hydrogen atoms but loses oxygen atoms. • A bond that transfers electrons between a metal and a nonmetal. • This type of reaction only includes carbon, hydrogen and oxygen. • ...

Chapter 6 choice board 2024-03-06

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a biological catalyst and is almost always a protein
a non- protein chemical compound that is bound to a protein and is required for the protein's biological activity
the source of energy for use and storage at the cellular level
the stored energy that can be used to do work
the energy associated with objects in motion
end substances after a biological process has occurred
the break down of complex molecules
the specific region of an enzyme where a substrate binds and catalysis takes place or where chemical reaction occurs
Reactions that have a negative change in free energy and consequently release free energy
a biochemical process in metabolism where the simple molecules combine to generate complex molecules
a group of substances that are needed for normal cell function, growth, and development
how the energy in a system changes and whether the system can perform useful work on its surroundings
the ability to do work

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any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron
a series of connected chemical reactions that feed one another
a measure of randomness or disorder in a system
they can be added together to give an overall reaction
a measure of energy that is available to do work
The substances which participate in a chemical reaction
a reaction that requires energy to be absorbed in order for it to take place
an organic molecule that binds to the active sites of certain enzymes to assist in the catalysis of a reaction
model proposing that the binding of a substrate or some other molecule to an enzyme causes a change in the shape of the enzyme so as to enhance or inhibit its activity
the chemical reactions in the body's cells that change food into energy
catalytically active RNA molecules or RNA–protein complexes, in which solely the RNA provides catalytic activity
a biological molecule consisting of one adenine, one sugar, and two phosphates
the minimum amount of extra energy required by a reacting molecule to get converted into a product
when a molecule binds an enzyme and prevents it from carrying out a chemical reaction

27 Clues: the ability to do work • the break down of complex molecules • the energy associated with objects in motion • the stored energy that can be used to do work • a measure of randomness or disorder in a system • a measure of energy that is available to do work • a biological catalyst and is almost always a protein • they can be added together to give an overall reaction • ...

Chemical Compounds 2016-01-16

Across

when a compounds' shape IS symmetrical.
Matter can't be created or destroyed.
When an elements' charge is reduced in a chemical equation.
A single hydrogen atom is one of these.
Symbolic representation of a chemical reaction.
When an elements' charge is increased in a chemical equation.
The process of reactants forming a product.
C2H3O2 -> CO2 + H2O
Shape of NCl3.
2NaCl -> 2Na + Cl2
Shape of BeH2.
A basic unit of a chemical element.
The type of bond formed when Zn(NO3)2 is produced.
Physical property.
Zncl2 is an example of this.
A number or symbol multiplied with a variable.
A useful guide for predicting products of metal displacement.
Shape of CH4.

Down

Ag, Zn, Al are examples of this.
Zn + 2HCl -> ZnCl2 + H2
The type of bond formed in NaCl.
Shape of H2O.
The driving force for an electron (Ex. Mg2+).
Br2, I2, N2, Cl2, H2, O2, F2
Substance that changes in a chemical reaction.
Shape of BBr3.
A metal by itself in a chemical equation.
HCl + AgNO3 -> AgCl + HNO3
When a compounds' shape is NOT symmetrical.
Na + Cl -> NaCl
Substance that is formed ion a chemical reaction.
A lasting attraction between atoms.

32 Clues: Shape of H2O. • Shape of CH4. • Shape of NCl3. • Shape of BBr3. • Shape of BeH2. • Na + Cl -> NaCl • 2NaCl -> 2Na + Cl2 • Physical property. • C2H3O2 -> CO2 + H2O • Zn + 2HCl -> ZnCl2 + H2 • HCl + AgNO3 -> AgCl + HNO3 • Br2, I2, N2, Cl2, H2, O2, F2 • Zncl2 is an example of this. • Ag, Zn, Al are examples of this. • The type of bond formed in NaCl. • A basic unit of a chemical element. • ...

Chemistry EOG Review 2023-05-10

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Atoms take the shape of their container in this state of matter
the negatively charged part of an atom
Atoms are freely flowing in this state of matter
a pure substance made up of only one type of atom
the neutrally charged part of an atom
A chart that organizes elements based on their atomic number
An element’s average number of protons and neutrons
the number of protons in an element- every element has a unique one of these
These changes break chemical bonds and rearrange matter into something new
the small numbers in a chemical equation to the right of each element
2 or more elements chemically bonded together
2 or more substances physically combined

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These change the size, shape, or state of matter
what you start with in a chemical reaction
the larger numbers in a chemical equation in front of each element
Outer shell electrons that determine whether or not an element likes to bond
The amount of matter in a given amount of space
the positively charged part of an atom
When there are equal numbers of each element on both sides of an equation we say it is…
basic building blocks of matter
when matter is allowed to escape during a chemical reaction
Mendeleev The scientist who organized the periodic table based on atomic number
Atoms are tightly packed in this state of matter
what is created as a result of a chemical reaction
when matter is not able to escape during a chemical reaction

25 Clues: basic building blocks of matter • the neutrally charged part of an atom • the negatively charged part of an atom • the positively charged part of an atom • 2 or more substances physically combined • what you start with in a chemical reaction • 2 or more elements chemically bonded together • The amount of matter in a given amount of space • ...

Types Of Reactions 2024-05-05

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Solution state where a salt is dissolved in water
Most reactive metal
Insoluble substance
Decomposition reaction by absorbing light
Reaction where metal is oxidised, leading to its destruction
Used to split water into hydrogen and oxygen
Found on the L.H.S of a chemical equation
Released during an exothermic reaction
Combining capacity of an element/compound
Increases the rate of a chemical reaction

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Used to know if 1 metal displaces the other
Reaction where removal of oxygen from a substance occurs
Exchange of ions to form 2 new substances
Reaction that causes bad odor and taste
When 2 substances combine
Adding of coefficients to ensure law of conservation of mass isn't violated

16 Clues: Most reactive metal • Insoluble substance • When 2 substances combine • Released during an exothermic reaction • Reaction that causes bad odor and taste • Decomposition reaction by absorbing light • Exchange of ions to form 2 new substances • Found on the L.H.S of a chemical equation • Combining capacity of an element/compound • Increases the rate of a chemical reaction • ...

Types of reaction-Zareb 10S 2025-05-01

Types of reaction-Zareb 10S crossword puzzle

Across

a type of chemical reaction that involves a transfer of electrons between two species
Reactions in which energy is absorbed
Process that occurs when two or more molecules interact to form a new product(s)
The starting materials in a reaction that undergo a chemical change to form a product
Chemical reaction in which a substance (atom or molecule) loses oxygen
a type of reaction in which the two or more reactants react together to form an Insoluble solid
two or more substances combine to form a new single
A chemical reaction that takes place when a substance comes into contact with oxygen or another oxidizing substance
The oxidation of oils or fats in food resulting in a bad taste and smell

Down

Two different atoms or groups of atoms (ions) are exchanged
Reactions in which heat is given out along with the products
When an element displaces another element from its compound
Reactions in which energy is absorbed
A single substance decomposes to give two or more substances.
The process of slow degradation of the metals due to the attack of atmospheric gases, moisture
A substance that is present at the end of a chemical reaction

16 Clues: Reactions in which energy is absorbed • Reactions in which energy is absorbed • two or more substances combine to form a new single • Two different atoms or groups of atoms (ions) are exchanged • When an element displaces another element from its compound • Reactions in which heat is given out along with the products • ...

Types of reaction-Saeren 10S 2025-05-01

Types of reaction-Saeren 10S crossword puzzle

Across

When an element displaces another element from its compound
Chemical reaction in which a substance (atom or molecule) loses oxygen
Reactions in which energy is absorbed
a type of chemical reaction that involves a transfer of electrons between two species
Reactions in which heat is given out along with the products
The oxidation of oils or fats in food resulting in a bad taste and smell
two or more substances combine to form a new single
a type of reaction in which the two or more reactants react together to form an Insoluble solid
A single substance decomposes to give two or more substances.
A chemical reaction that takes place when a substance comes into contact with oxygen or another oxidizing substance

Down

Two different atoms or groups of atoms (ions) are exchanged
A substance that is present at the end of a chemical reaction
The process of slow degradation of the metals due to the attack of atmospheric gases, moisture
Process that occurs when two or more molecules interact to form a new product(s)
Reactions in which energy is absorbed
The starting materials in a reaction that undergo a chemical change to form a product

Chapter 4 Crossword 2025-10-03

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– The substance being dissolved in a solution.
(M) – The concentration of a solution, expressed as moles of solute per liter of solution.
– The gain of electrons or decrease in oxidation state in a chemical reaction.
– An insoluble solid that forms from a solution during a chemical reaction.
– The substance in which the solute dissolves, forming a solution.
Electrolyte – A compound that only partially ionizes in water.
– A substance that produces ions when dissolved in water and conducts electricity.

Down

– A reaction between an acid and a base that produces water and a salt.
– A substance that dissolves in water but does not produce ions
Electrolyte – A compound that completely ionizes in water
– The process of adding water to a solution to lower its concentration.
– The loss of electrons or an increase in oxidation state in a chemical reaction.
Ionic Equation – An equation that shows only the ions and molecules directly involved in a chemical reaction.
Ion – An ion that does not participate in the chemical reaction but remains in solution.
– A laboratory method used to determine the concentration of a solution by reacting it with a solution of known concentration.

15 Clues: – The substance being dissolved in a solution. • Electrolyte – A compound that completely ionizes in water • Electrolyte – A compound that only partially ionizes in water. • – A substance that dissolves in water but does not produce ions • – The substance in which the solute dissolves, forming a solution. • ...

CHAPTER 8 VOCABULARY 2022-12-13

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the ions of two compounds exchange places in an aqueous solution to form two new compounds
is a small whole number that appears in front of a formula in a chemical equation
one element replaces a similar element in a compound
a substance combines with oxygen, releasing a large amount of energy in the form of light and heat
a chemical reaction in which the products re-form the original reactants
a solid that is produced as a result of a chemical reaction in solution and that separates from the solution
represents, with symbols and formulas, the identities and relative amounts of the reactants and products in a chemical reaction
the decomposition of a substance by an electric current

Down

an equation in which the reactants and products in a chemical reaction are represented by words
represents the reactants and products of a chemical reaction by their symbols or formulas
two or more substances combine to form a new compound.
is the process by which one or more substances are changed into one or more different substances
is a list of elements organized according to the ease with which the elements undergo certain chemical reactions
a single compound undergoes a reaction that produces two or more simpler substances.

14 Clues: one element replaces a similar element in a compound • two or more substances combine to form a new compound. • the decomposition of a substance by an electric current • a chemical reaction in which the products re-form the original reactants • is a small whole number that appears in front of a formula in a chemical equation • ...

Types Of Reactions 2024-05-05

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Exchange of ions to form 2 new substances
Decomposition reaction by absorbing light
When 2 substances combine
Used to know if 1 metal displaces the other
Used to split water into hydrogen and oxygen
Reaction where metal is oxidised, leading to its destruction
Reaction that causes bad odor and taste

Down

Adding of coefficients to ensure law of conservation of mass isn't violated
Solution state where a salt is dissolved in water
Insoluble substance
Found on the L.H.S of a chemical equation
Released during an exothermic reaction
Reaction where removal of oxygen from a substance occurs
Combining capacity of an element/compound
Most reactive metal
Increases the rate of a chemical reaction

16 Clues: Insoluble substance • Most reactive metal • When 2 substances combine • Released during an exothermic reaction • Reaction that causes bad odor and taste • Exchange of ions to form 2 new substances • Found on the L.H.S of a chemical equation • Decomposition reaction by absorbing light • Combining capacity of an element/compound • Increases the rate of a chemical reaction • ...

creamy crossword pot 2025-10-28

Across

Law of Conservation of Matter/Energy
Mass Conductor
mixture Chemical Reaction Products
Potential Energy Thermal Energy
Convection Physical Change
number Solids/liquids/gases/plasma Chemical Energy

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substance Kinetic energy Periodic Table
mixture Physical Reaction Reactants
Density Temperature
Physical Property Gravitational Potential Energy
Radiation Chemical Change
Chemical Properties Mechanical Energy
States of matter Insulator
Matter Heat

14 Clues: Matter Heat • Mass Conductor • Density Temperature • Radiation Chemical Change • States of matter Insulator • Convection Physical Change • Potential Energy Thermal Energy • mixture Chemical Reaction Products • mixture Physical Reaction Reactants • Law of Conservation of Matter/Energy • Chemical Properties Mechanical Energy • substance Kinetic energy Periodic Table • ...

Chemical Reactions and Equations 2022-02-10

Chemical Reactions and Equations crossword puzzle

Across

the starting substances in a chemical reaction
the substances produced by the chemical reaction
is a process in which atoms of one or more substances rearrange to form one or more new substances
is a description of a reaction using element symbols and chemical formulas
states that the total mass of the reactants before a chmiecal reaction is the same as the total mass of the products after the chemical reaction

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a type of chemical reaction in which one element replaces another element in a compound
a chemical reaction in which a substance combines with oxygen and releases energy
a type of chemical reaction in which one compound breaks down and forms two or more substances
a type of chemical reaction in which two or more substances combine and form one compound
is a number placed in front of an element symbol or chemical formula in an equation

10 Clues: the starting substances in a chemical reaction • the substances produced by the chemical reaction • is a description of a reaction using element symbols and chemical formulas • a chemical reaction in which a substance combines with oxygen and releases energy • is a number placed in front of an element symbol or chemical formula in an equation • ...

AAHS Spring Semester General Chemistry Crossword 2025-05-05

AAHS Spring Semester General Chemistry Crossword crossword puzzle

Across

A chemical reaction where two compounds exchange ions to form two new compounds.
A solution where a solid is dissolved in a solvent, typically water.
A state of matter with a definite volume, but no fixed shape.
A state of matter with a fixed shape and volume
The mass of one mole of a substance, usually in grams per mole.
The process of reducing the concentration of a solution by adding more solvent.
Able to dissolve in a solvent, usually water.
The amount of solute in a given amount of solution.
A reference table showing the solubility of substances in water.
The calculation of reactants and products in chemical reactions.
General term for small pieces of matter, including atoms, formula units, and molecules.
A reaction in which a substance reacts with oxygen to produce heat and light, forming carbon dioxide and water.

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A laboratory method used to determine the concentration of a solution by reacting it with a known volume and concentration of another solution.
A substance that accepts hydrogen ions or donates hydroxide ions in solution.
A number placed in front of a chemical formula to balance a chemical equation.
A small number written below and to the right of a chemical symbol that shows how many atoms of that element are present.
A state of matter with no fixed shape or volume that will expand to fill its container.
The ratio of moles of reactants and products in a balanced chemical equation.
Not able to dissolve in a solvent.
A unit in Chemistry representing Avogadro's number of particles in a substance.
The amount of space a substance occupies, often measured in liters or milliliters.
A chemical reaction where one element replaces another in a compound.
A list of elements ranked by their ability to displace other elements in chemical reactions.
A small number written above a chemical symbol indicating charge or isotope.
A chemical reaction where one compound breaks down into two or more simpler substances.
A measure of concentration, calculated as moles of solute per liter of solution.
A chemical reaction where two or more substances combine to form one product.
A substance that donates hydrogen ions in solution.

28 Clues: Not able to dissolve in a solvent. • Able to dissolve in a solvent, usually water. • A state of matter with a fixed shape and volume • The amount of solute in a given amount of solution. • A substance that donates hydrogen ions in solution. • A state of matter with a definite volume, but no fixed shape. • ...

Puzzle Chemical Reactions 2023-01-15

Puzzle Chemical Reactions crossword puzzle

Across

chemical reaction that absorbs heat
change that occurs when one or more substances change into new substances with new chemical properties
starting substance that is part of a chemical reaction
vertical columns of elements on the periodic table
chemical reaction that releases heat
letters and numbers showing the types and number of atoms that repeat to make up a substance
able to cause damage
tiny piece that all matter is made of; basic unit of matter; element
the combining of atoms to form molecules
pure substance that cannot be separated or broken down into simpler substances; made of atoms
characteristic of matter that describes a substance's ability to participate in chemical reactions
an object, diagram, or computer program that helps us understand something by making it simpler or easier to see

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process in which atoms rearrange to form new substances
to change the order or position of something
element that has properties of both metals and nonmetals; known as semiconductors
ending substance that is made during a chemical reaction
chart of the elements showing the repeating pattern of their
pure substance made of atoms of two or more elements joined by chemical bonds
structure formed by repeating groups of atoms linked together in a large network
the energy that an object has because it is moving
an interaction that holds atoms or ions together
element that is dull, brittle, and poorly conducts heat and electricity
horizontal rows of elements on the periodic table
element that is shiny, ductile, malleable, and conducts heat and electricity well

24 Clues: able to cause damage • chemical reaction that absorbs heat • chemical reaction that releases heat • the combining of atoms to form molecules • to change the order or position of something • an interaction that holds atoms or ions together • horizontal rows of elements on the periodic table • vertical columns of elements on the periodic table • ...

Rates of Reaction 2014-06-09

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the forward and reverse reaction will always have an ___ sign on their enthalpies
slower chemical reactions will have a ____ activation energy
the unit used to express the average reaction rate is __/LxS
measuring the pressure or volume of this can also be used to measure reaction rates
the area of chemistry that deals with rates of reactions
if the reactants contain more energy than the products on a potential energy diagram, the reaction was ___
the number of main factors affecting rates of reaction
the change in this can be used to measure reaction rates
A theory that states reacting particles must collide at the correct orientation
if the enthalpy on a potential energy diagram is this, the reaction was exothermic.
the Y axis on a potential energy diagram
Maxwell-Boltzman curves for also known as kinetic energy ___ curves
increasing this will allow more room for separate substances collide
the only factor affecting rates of reaction which will increase the frequency and effectiveness of collisions
In terms of speed, the rate limiting step is what, when compared to the others?
Maxwell-Boltzman curves show that not all particles at a specific temperature share the same ___
Reactions will occur ___ if the activation energy is low
affects the rate of reaction without changing itself

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if a forward reaction is exothermic the reverse reaction will be ___
Compared to an exothermic reaction, the activation energy required for endothermic reaction is ___
a potential energy diagram represents the change in this
The Haber process is the process of converting nitrogen gas into this
Maxwell-Boltzman curves are not plotted at a ___ temperature
all reactions require activation energy so the bonds can be ___
a reaction ___ is a step-by-step sequence of elementary reactions by which overall chemical change occurs
the X axis a potential energy diagram
Activation energy is known as the ___ in a potential energy diagram
the ___ rate of reaction will intersect a graph at two points
the ___ rate of reaction will intersect a graph at one point
another factor affecting rates of reaction which will increase frequency of collisions
catalyst provide ___ energy pathways to lower the activation energy
potential energy is almost always measured in this unit
average reaction rate = change in concentration / ____
and activated complex is also known as a ___ state
the ___ energy is the minimum energy required for an individual reaction to occur
this is a line in a Maxwell-Boltzman curve which particles past this do not have enough energy to reach activation
Catalyst accelerate reactions by doing what to the activation energy?
the units of temperature mainly used when dealing with rates of reaction
the chemical ___ of reactants will determine how effective the collisions are
The first name of the man who invented the Haber Process

40 Clues: the X axis a potential energy diagram • the Y axis on a potential energy diagram • and activated complex is also known as a ___ state • affects the rate of reaction without changing itself • the number of main factors affecting rates of reaction • average reaction rate = change in concentration / ____ • potential energy is almost always measured in this unit • ...

Chemistry Crossword 2014-11-07

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Positively charged particle in the nucleus of an atom.
Came from the Greek word,"khemia" meaning juice of a plant.
Measure of atomic mass; (amu).
The speed of a chemical reaction.
Substance(s) created by a reaction.
Group 15, period 7.
A slow chemical reaction in which the metal is decomposed when it reacts with oxygen.
The smallest part of an element that is representative of that element.
Invisible negatively charged particle that orbits the nucleus of an atom.

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The number that represents the amount of atoms in a chemical formula.
Vertical column of elements in the table.
Produced when two non-metals are combined.
A chemical change, which releases heat energy
Can be in-between metals and non-metals.
Positive charges.
Most reactive non-metals.
Produced when a metal and non-metal are combined.
Substances that start a reaction.
An organic catalyst.
Horizontal row of elements in the periodic table.
The positive charged centre of an atom.
Group 9, period 6.
Anything that has mass and occupies space.
An enzyme found in plant and animal cells.
Neutral particle in the nucleus of an atom.

25 Clues: Positive charges. • Group 9, period 6. • Group 15, period 7. • An organic catalyst. • Most reactive non-metals. • Measure of atomic mass; (amu). • The speed of a chemical reaction. • Substances that start a reaction. • Substance(s) created by a reaction. • The positive charged centre of an atom. • Can be in-between metals and non-metals. • Vertical column of elements in the table. • ...

unit 4 vocab 2024-10-18

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in a chemical reaction the new substance or substances formed
chemical reaction in which one substance breaks down into two or more substances
reaction chemical reaction that requires thermal energy in order to proceed
displacement reaction chemical reaction in which one element replaces another element in a compound

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in a chemical reaction the substance that reacts
number in a chemical equation that represents the number of units or each substance taking part in a chemical reaction
reaction chemical reaction in which energy is primarily given off in the form of thermal energy
reactions chemical reaction in which two or more substances combine to form a different substance
displacement reaction reaction in which two ionic compounds in solution are combined can produce a precipitate water or gas

9 Clues: in a chemical reaction the substance that reacts • in a chemical reaction the new substance or substances formed • reaction chemical reaction that requires thermal energy in order to proceed • chemical reaction in which one substance breaks down into two or more substances • ...

MOY Review 2012-11-19

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When an object is falling and is half way to it's resting point, does it have potential energy,kinetic energy, or both?
Two or more different elements combined
( blank) gas is produced when there you put an electrical current( such as a battery) in water
solid formed inside of a liquid
A reaction where a new substance is formed
A pure substance
Increases potential energy
increases BOTH potential and kinetic energy
Two or more of the same elements combined
produced in a chemical reaction, often from heating or burning

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(blank) change and producing a gas are 2 types of evidence of a chemical reaction when burning sugar
Change where no new substance is formed
When a chemical reaction occurs a (blank) substance is formed
energy of motion
mass divided by volume
A change when 2 substances combine and the new substance heats up or cools down
Energy that is stored
(blank) a fence is an example of a physical change
Gives us permission to add a zero in a long division, density problem
(blank) the lawn is an example of a physical change

20 Clues: energy of motion • A pure substance • Energy that is stored • mass divided by volume • Increases potential energy • solid formed inside of a liquid • Two or more different elements combined • Change where no new substance is formed • Two or more of the same elements combined • A reaction where a new substance is formed • increases BOTH potential and kinetic energy • ...

8th Grade Sci Review 2023-10-12

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How we measure energy
The main component of an organic molecule
What come together in a chemical reaction
Food is defined as giving us what?
A food molecule; a lipid
When muscles do work without getting enough of this, sometimes lactic acid builds up
Where chemical energy is stored in molecules
A big part of organic molecules and its ion is what we quantify to measure acidity
The organ with the most fat
What results from a chemical reaction
Energy is ___ in animal tissues for use later
What matter does during a chemical reaction
What are you?

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"I'm going to ___ this class!"
The second part of a scientific investigation
Moving your arm is this kind of energy
The smallest unit of matter (what elements are)
What is produced during the reaction that turns food to energy
A good scientific question is specific and ____?
What kind of thermal energy do we see in our body?
Energy is the ability to do what?
A food molecule; found in muscle tissue
A food molecule; sugar is an example
What part of an experiment is making graphs?

24 Clues: What are you? • How we measure energy • A food molecule; a lipid • The organ with the most fat • "I'm going to ___ this class!" • Energy is the ability to do what? • Food is defined as giving us what? • A food molecule; sugar is an example • What results from a chemical reaction • Moving your arm is this kind of energy • A food molecule; found in muscle tissue • ...

Bio Word Search S2 - Lydia Barrier 2025-05-05

Bio Word Search S2 - Lydia Barrier crossword puzzle

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chemical reaction that requires oxygen
molecules necessary for life
increases in frequency within the population
light-observing pigment in plants and some protists that is required for photosynthesis
fuels natural fuels from acient organisms
dogma a theory stating genetic info only flows in one direction \
single stranded nucleic acid
same/alike
organisms are use energy from sun
how things work
molecules found in cells
chemical reaction that DOES NOT require oxygen
structure like thread
garbage disposal

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biological process of copying and making identical copies of something
apparatus post office
produce proteins
membrane
membrane a protective barrier
things that forms the chemical reaction
cycle movement of carbon through earths system
selection a fundamental concept in biology that explains how species change and adapt over time
plants convert sunlight into glucose and oxygen
section of DNA containing instruction for making protein
bacteria with a natural resistance to the antibiotic to survive and multiply
a substance that under goes a chemical change during a reaction
molecules move from high to low concentration
storing & transporting water
command center of cell
the way things are built

30 Clues: membrane • same/alike • how things work • produce proteins • garbage disposal • structure like thread • apparatus post office • command center of cell • molecules found in cells • the way things are built • molecules necessary for life • single stranded nucleic acid • storing & transporting water • membrane a protective barrier • organisms are use energy from sun • ...

Physical and Chemical Properties Review 2025-02-16

Physical and Chemical Properties Review crossword puzzle

Across

In a chemical reaction, the ___ of the reactants always equals the products because we start and end with the same number of atoms
An example of a chemical change is a change in ____ like the outside of a piece of bread that has been toasted or the pancakes we made.
Anything that is made up of one kind of molecule or atom is called a ___ substance.
When a solid object is heated to a temperature that turns it into a liquid
State of matter where molecules are moving the fastest and have no definite shape
When we made Elephant toothpaste, the _____ increased, which is a sign of a chemical change.
The physical property seen when one substance dissolves in another.
Molecules formed after a chemical reaction has happened (on the right side of the chemical equation)
A physical change of an object could be cutting it into smaller pieces to change its ___
Property that helps identify pure substances by the formula mass/volume.
In a chemical formula, this represents a chemical reaction is taking place
When liquid matter is cooled down to the point where it turns to a solid
The word for the point at which liquid turns into a gas

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When we mixed baking soda and vinegar, we saw signs of a chemical reaction because when the reactants mixed they made ___.
When we explored marshmallow molecules, we learned that we need oxygen as a reactant to cause something to burn. Burning something shows us the chemical property _____.
The number 2 in front of the formula for water in the equation “2H2 + O2 —> 2 H2O” means there are 2 ___.
An example of a ____ property is acidity or reactivity of a compound
Anything that is a combination of atoms and molecules in a container is called a ___.
In a gas, atoms and molecules are moving at a ____ speed.
State of matter where molecules are moving around and take the shape of their container
“Ingredients” in a chemical reaction
An example of a physical change is a change in ____ like heating water from an ice cube and turning it into water and then water vapor.
The law of conservation of mass states that in a chemical reaction matter is not created or destroyed, but _____ into new substances
In a solid, atoms and molecules are moving at a ___ speed.
An example of a _____ property is the color, density, or size of an object
State of matter where molecules are moving very little and the matter has a definite shape

26 Clues: “Ingredients” in a chemical reaction • The word for the point at which liquid turns into a gas • In a gas, atoms and molecules are moving at a ____ speed. • In a solid, atoms and molecules are moving at a ___ speed. • The physical property seen when one substance dissolves in another. • An example of a ____ property is acidity or reactivity of a compound • ...

2nd 9 Weeks Vocabulary 2023-03-21

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Are found to the right of the stair step line, most are gas at room temperature.
A shorthand that scientists use to describe a chemical reaction.
The recipe for a chemical substance. Tells the number of atoms of each element in a compound or molecule
A combination of many different elements, not chemically combined, can be separated
Elements on both sides of the Boron stair-step zigzag line that have properties of both metals and nonmetals.
The basic building blocks of ordinary matter
No electrical charge

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Small numbers found in some chemical formulas that tell you the number of atoms of each element present, if there is not a number it is understood as 1
2 or more atoms (the same type of atom O2, or different atoms H2O) bonded together, Represents the smallest particle in a chemical compound that can take place in a chemical reaction
The number in front of the element symbol that indicates the number of molecules in a chemical equation. If there is not one in front of a molecule, it is an understood 1.
Changes the form or appearance of a substance. Does not change substance into anything new.
Anything that has mass and takes up space
88 elements to the left of the stair step line; most are solid at room temperature.
Positively charged subatomic particle +
Negatively charged subatomic particle –
Occurs when two or more molecules interact and the molecules change into a new substance. Bonds between atoms are broken and created to form new molecules.
A pure substance that cannot be broken down into any other substance
Has a definite and constant composition, can be either an element or compound
The amount of matter in a particle or object
A pure substance formed when two or more elements have chemically combined through a chemical reaction to form a new substance It is represented by a formula

20 Clues: No electrical charge • Positively charged subatomic particle + • Negatively charged subatomic particle – • Anything that has mass and takes up space • The amount of matter in a particle or object • The basic building blocks of ordinary matter • A shorthand that scientists use to describe a chemical reaction. • ...

Matter and Chemical Change 2017-11-15

Matter and Chemical Change crossword puzzle

Across

chemical reaction that absorbs energy
combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
chemical combination of two or more elements in a specific ratio
number of protons in the nucleus of one atom of an element
the smallest part of an element that is representative of that element; a neutral particle made up of a nucleus containing protons and neutrons, and in which the number of electrons equals the number of protons
orbit of electrons around the nucleus of an atom
group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals
a reaction that takes place when two or more substances react to form new substances
invisible negatively charged particle that orbits the nucleus of an atom
pure substance that cannot be broken down into other substances; substance made up of only one type of atom
mass of one atom of an element calculated from the total number of protons,neutrons, and electrons of that atom; measured in atomic mass units (amu)
change of state from a gas to a liquid

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chemical reaction that takes place in cells; food (sugar) reacts with oxygen to produce energy, water, and carbon dioxide
a solution in which water is the solvent
change that results when two or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones
ability of a substance to conduct electricity or heat
an experiment in which all reactants and all products of a chemical reaction are accounted for
description of how a substance interacts with other substances, such as acids; chemical properties are observable only when a chemical change occurs
slow chemical change that occurs when oxygen in the air reacts with metal
chemical reaction that releases energy
catalyst involved in chemical reactions in living things
group 1 elements in the periodic table, not including hydrogen; the most reactive of the metals
measure of atomic mass; 1 amu is equal to 1/12th the mass of a carbon 12 atom
description of a solid that can be stretched into a long wire
substance that helps a chemical reaction to proceed more quickly

26 Clues: chemical reaction that absorbs energy • chemical reaction that releases energy • change of state from a gas to a liquid • a solution in which water is the solvent • orbit of electrons around the nucleus of an atom • ability of a substance to conduct electricity or heat • catalyst involved in chemical reactions in living things • ...

Chemical Compounds 2016-01-16

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Series: A useful guide for predicting products of metal displacement.
Shape of BeH2.
Charge: Ag, Zn, Al are examples of this.
Equation: Symbolic representation of a chemical reaction.
The process of reactants forming a product.
When a compounds' shape is NOT symmetrical.
2NaCl -> 2Na + Cl2
Bond: The type of bond formed in NaCl.
A basic unit of a chemical element.
Br2, I2, N2, Cl2, H2, O2, F2
Substance that changes in a chemical reaction.
Of Conservation: Matter can't be created or destroyed.
The driving force for an electron (Ex. Mg2+).
Metal: a metal by itself in a chemical equation.
Replacement: HCl + AgNO3 -> AgCl + HNO3

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A number or symbol multiplied with a variable.
Substance: a single hydrogen atom is one of these.
Replacement: Zn + 2HCl -> ZnCl2 + H2
Na + Cl -> NaCl
Zncl2 is an example of this.
Mass: Physical property.
Substance that is formed ion a chemical reaction.
Shape of CH4.
C2H3O2 -> CO2 + H2O
Polar: when a compounds' shape IS symmetrical.
When an elements' charge is increased in a chemical equation.
A lasting attraction between atoms.
Planar: Shape of BBr3.
Bond: The type of bond formed when Zn(NO3)2 is produced.
When an elements' charge is reduced in a chemical equation.
Shape of H2O.

31 Clues: Shape of CH4. • Shape of H2O. • Shape of BeH2. • Na + Cl -> NaCl • 2NaCl -> 2Na + Cl2 • C2H3O2 -> CO2 + H2O • Planar: Shape of BBr3. • Mass: Physical property. • Zncl2 is an example of this. • Br2, I2, N2, Cl2, H2, O2, F2 • A lasting attraction between atoms. • A basic unit of a chemical element. • Replacement: Zn + 2HCl -> ZnCl2 + H2 • Bond: The type of bond formed in NaCl. • ...

IPC - MT 3 2023-12-11

Across

type of reaction in one element replaces a second element in a compound
data that can be measured in numbers
the study of nonliving matter and energy
an indicator of a chemical reaction
a chemical reaction that breaks down compounds into simpler products
a negatively charged ion
data that describes color, odor, shape, or some other physical characteristics
a system of moral values
has the same number of protons and electrons
type of reaction in which two or more substances combine to form a new compound

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a measure of how close a series of measurements are to one another
a measure of the force of gravity on an object
a type of reaction involving the exchange of positive ions between compounds
type of bonding between two or more atoms resulting in the formation of different substances
a reaction that releases energy in the form of heat
the movement of carbon from the nonliving environment into living things and back
an atom or group of atoms that have a positive or negative charge
an initial, testable explanation that guides an investigation
a positively charged ion
how close a measurement is to the true value
decimal based measuring system

21 Clues: a negatively charged ion • a positively charged ion • a system of moral values • decimal based measuring system • an indicator of a chemical reaction • data that can be measured in numbers • the study of nonliving matter and energy • how close a measurement is to the true value • has the same number of protons and electrons • a measure of the force of gravity on an object • ...

Chemical reactions and Equations - Fabian Francen 2025-04-30

Chemical reactions and Equations - Fabian Francen crossword puzzle

Across

A reaction where a single reactant breaks down into simpler products
A term used for an insoluble substance formed due to a reaction
Any reaction that produces a precipitate
Reacts with water to produce Calcium Hydroxide
The process in which a metal is attacked by substances around it such as moisture,acids,etc.
Another term for Calcium Oxide
Reactions in which heat is released along with the formation of products
One common gas used by chips manufacturers to prevent the chips from being rancid
The substance formed during the reaction
A metal that burns with a dazzling white flame
A type of reaction where a highly reactive metal displaces a slightly lesser reactive metal from its salt solution
The color of Nitrogen dioxide (NO2) in its gas form

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Color of Copper(II) Oxide
Another name for Calcium Hydroxide
Such reactions where there is an exchange of ions between the ions
Has the chemical formula CaCO3
________ involves the making and breaking of chemical bonds
Substances which prevent oxidation of fat/oil containing food products
Characteristic of a fat/oil containing food after being oxidised
Such reactions where one reactant gets oxidised and the other gets reduced
The term used to describe the substances undergoing a chemical reaction

21 Clues: Color of Copper(II) Oxide • Has the chemical formula CaCO3 • Another term for Calcium Oxide • Another name for Calcium Hydroxide • Any reaction that produces a precipitate • The substance formed during the reaction • Reacts with water to produce Calcium Hydroxide • A metal that burns with a dazzling white flame • The color of Nitrogen dioxide (NO2) in its gas form • ...

Chemical Reaction Crossword 2022-08-28

Chemical Reaction Crossword crossword puzzle

Across

When two or more DIFFERENT elements are chemically bonded.
A subatomic particle with a neutral charge.
A substance that takes part in and undergoes change during a chemical reaction.
A subatomic particle with a negative charge.
When one or more substances change to produce one or more substances.

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Formed when two or more atoms join together chemically.
An insoluble solution formed from a chemical reaction.
A subatomic particle with a positive charge.
Method of changing one or more chemicals or chemical compounds.
A substance produced during a chemical reaction.
The smallest particle of an element. Made of protons, neutrons, and electrons.

11 Clues: A subatomic particle with a neutral charge. • A subatomic particle with a positive charge. • A subatomic particle with a negative charge. • A substance produced during a chemical reaction. • An insoluble solution formed from a chemical reaction. • Formed when two or more atoms join together chemically. • When two or more DIFFERENT elements are chemically bonded. • ...

Semester 1 physical science terms 2023-12-11

Semester 1 physical science terms crossword puzzle

Across

a change in properties such as texture, shape, or state,
combination of parts or elements so as to form a whole
a reaction that occurs when heat is released
A bond formed by a nonmetal and a metal
a substance that is present at the start of a chemical reaction
the degree of compactness of a substance
a reaction that occurs when heat is absorbed
an element with a positive charge
a bond formed by two nonmetals
a substance that is present at the end of a chemical reaction

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the reaction that requires burning and fire
an atom with a net charge
the table which chemical elements are organized by atomic number
change that causes a new substance to be formed
the kind of elements on the right side of the periodic table
a reaction in which one element replaces a similar element in a compound
the kind of elements on the left side of the periodic table
two compounds are exchanged making
how easily a substance reacts chemically with other substances
a compound is broken down to the elements that make it up
an element with no charge
new compounds
same amount of protons different number nuetrons
an element with a negative charge

24 Clues: new compounds • an atom with a net charge • an element with no charge • a bond formed by two nonmetals • an element with a positive charge • an element with a negative charge • two compounds are exchanged making • A bond formed by a nonmetal and a metal • the degree of compactness of a substance • the reaction that requires burning and fire • ...

Chapter 2 & 3 2025-12-09

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Permeability, The property of a cell membrane that allows certain substances to pass through while blocking others
Energy, The amount of energy required to break one mole of bonds in a substance
, The diffusion of water molecules across a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration
A chemical element with the symbol C and atomic number 6
A pure substance that cannot be broken down into simpler substances by chemical means, consisting of atoms with the same number of protons
The substance that is dissolved in a solvent to form a solution
Theory ,A fundamental concept in biology that states all living organisms are composed of cells, and all cells arise from pre-existing cells
Acids, Organic compounds that serve as the building blocks of proteins
A group of two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound
A solution that has the same solute concentration as another solution, resulting in no net movement of water
A scale used to specify the acidity or basicity of an aqueous solution, ranging from 0 (acidic) to 14 (basic)
A chemical element with the symbol O and atomic number 8, essential for respiration in most living organisms
The movement of particles from an area of higher concentration to an area of lower concentration
Bond, A chemical bond formed when two atoms share one or more pairs of electrons
A substance that accepts protons (H⁺ ions) or donates hydroxide ions (OH⁻) in a chemical reaction and has a pH greater than 7
A substance formed when two or more elements are chemically bonded together
Reactions, Processes that involve the transformation of reactants into products through the breaking and forming of chemical bonds
A substance that donates protons (H⁺ ions) in a chemical reaction and has a pH less than 7

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Organic compounds made up of carbon, hydrogen, and oxygen, typically in a ratio of 1:2:1, serving as a major energy source
Factors in an experiment that are kept the same to ensure that the test results are valid and reliable
The lightest and most abundant chemical element, represented by the symbol H and atomic number 1
The smallest unit of a chemical element, consisting of a nucleus surrounded by electrons
A solution that has a higher solute concentration compared to another solution, causing water to leave cells and potentially leading to shrinkage
A homogeneous mixture of two or more substances, where one substance (the solute) is dissolved in another (the solvent)
Substances that undergo a chemical change in a reaction
The substance in which a solute is dissolved to form a solution, typically present in the greater amount
Gradient, A difference in the concentration of a substance across a space
An atom or molecule that has gained or lost one or more electrons, resulting in a net electric charge Ionic Bond, A type of chemical bond formed through the electrostatic attraction between oppositely charged ions
A solution that has a lower solute concentration compared to another solution, causing water to enter cells and potentially leading to swelling
Large biomolecules made up of one or more long chains of amino acids
Substances that are formed as a result of a chemical reaction
Bond, A weak bond between a hydrogen atom and an electronegative atom, such as oxygen or nitrogen
Reaction, A chemical reaction that releases energy in the form of heat to the surroundings Endothermic Reaction, A chemical reaction that absorbs energy from the surroundings
Factors in an experiment that are kept the same to ensure that the test results are valid and reliable.

34 Clues: Substances that undergo a chemical change in a reaction • A chemical element with the symbol C and atomic number 6 • Substances that are formed as a result of a chemical reaction • The substance that is dissolved in a solvent to form a solution • Large biomolecules made up of one or more long chains of amino acids • ...

Energy Change & Rates of Reactions 2021-04-03

Energy Change & Rates of Reactions crossword puzzle

Across

When two molecules combine to form a larger molecule and a small molecule.
capacity, C value in certain equations.
Law, Mathematical expression obtained by comparing reaction rates with reactant concentrations.
Law, Multi-step process used when a reaction cannot be done in a calorimeter.
ΔH is greater than Zero.
A Branch of chemistry that deals with the relations of heat and chemical reactions.
Total amount of thermal energy in a system or substance.
Theory, A theory that chemical reactions can occur only if the reactants collide with proper orientation.
Equation, An equation that is needed to be successful with Hess's Law.

Down

A substance that can alter the rate of a chemical reaction.
Thermodynamic equation used for calculating changes in the Gibbs energy of a system.
Measurement of the heat flow out of or into the system
A measure of the molecular disorder, or randomness, of a system.
Order, When the rate is increasing.
The reaction or substance changing.
Energy, Minium energy that a reactant molecule must possess to have a successful reaction.
To separate a substance into simpler compounds. Type of Change.
To make (a liquid) thinner or less strong by adding another liquid.
Change- Chemical or physical change occurs "naturally".

19 Clues: ΔH is greater than Zero. • Order, When the rate is increasing. • The reaction or substance changing. • capacity, C value in certain equations. • Measurement of the heat flow out of or into the system • Change- Chemical or physical change occurs "naturally". • Total amount of thermal energy in a system or substance. • ...

Photosynthesis Quiz 2025-09-15

Across

The second part of photosynthesis. Carbon dioxide, NADPH, & ATP produce glucose & water.
An organism that obtains energy by eating other organisms
Green pigment that absorbs the energy from sunlight in photosynthesis
Main energy source that cells use for most of their work..
Process where a phosphate group (PO3) is added to a molecule. Ex
Membrane bound organelle that produces energy in the form of ATP
product of the Light dependent reaction of photosynthesis.
Process where autotrophic organisms convert atmospheric carbon dioxide into usable organic compounds
Process that releases energy and CO2 by breaking down glucose when oxygen is present

Down

When chemical bonds are broken and reformed
Organisms that use chemical energy to make their food
Reactant of photosynthesis; acts as an electron donor for light-dependent reaction
Product of the light dependent reaction; electron donor in photosynthesis
The conversion of light energy to chemical energy
A basic carbohydrate molecule; glucose that is produced from photosynthesis
Process where CO2, NADPH, and ATP build glucose; also known as Calvin Cycle
Substance that undergoes the chemical reaction. Found on the left side of the equation
Stacks of thylakoids
The fluid of the chloroplast surrounding the thylakoid membrane. Location of the light independent reaction

19 Clues: Stacks of thylakoids • When chemical bonds are broken and reformed • The conversion of light energy to chemical energy • Organisms that use chemical energy to make their food • An organism that obtains energy by eating other organisms • Main energy source that cells use for most of their work.. • product of the Light dependent reaction of photosynthesis. • ...

Unit 2 Chemistry 2023-11-09

Across

substance formed by the chemical combination of two or more elements in definite proportions
the measurement of the amount of solute dissolved in a fixed amount of the solution
A liquid substance capable of dissolving other substances
A reaction that ABSORBS energy in the form of heat, it is required to start the reaction
The ease and speed with which an element combines, or reacts, with other elements and compounds.
the process in which atoms are rearranged to produce new substances
A reaction that releases energy in the form of heat
A group of atoms bonded together
mixture in which two or more substances are so completely blended that it looks like it is made of only one substance
A substance formed/produced in a chemical reaction
A combination of chemical symbols and numbers to represent a substance
A reaction of an acid with a base, yielding a solution that is not as acidic or basic as the starting solutions were.
a mixture consisting of tiny particles that are intermediate in size between those in solutions and those in suspensions and that are suspended in a liquid, solid, or gas
A sample of matter, either a single element or a single compound, that has definite chemical and physical properties
A mixture in which particles can be seen and easily separated by settling or filtration

Down

Matter is not created nor destroyed in any chemical or physical change
A substance that is being dissolved in a solution
the ability of one substance to dissolve in another at a given temperature and pressure
a mixture in which the composition is uniform throughout
A system in which both energy and matter can be exchanged between the system and its surroundings
A mixture that is not uniform in composition; components are not evenly distributed throughout the mixture
A combination of two or more substances that are not chemically combined
A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
A system in which mass is conserved inside the system but energy can enter or leave the system freely
substances that participate in a chemical reaction, the starting substances

25 Clues: A group of atoms bonded together • A substance that is being dissolved in a solution • A substance formed/produced in a chemical reaction • A reaction that releases energy in the form of heat • a mixture in which the composition is uniform throughout • A liquid substance capable of dissolving other substances • ...

Chemical Compounds 2016-01-16

Across

A basic unit of a chemical element.
Bond: The type of bond formed when Zn(NO3)2 is produced.
Bond: The type of bond formed in NaCl.
Equation: Symbolic representation of a chemical reaction.
Mass: Physical property.
Substance that is formed ion a chemical reaction.
Replacement: Zn + 2HCl -> ZnCl2 + H2
When a compounds' shape is NOT symmetrical.
2NaCl -> 2Na + Cl2
The driving force for an electron (Ex. Mg2+).
Shape of CH4.
Substance: A single hydrogen atom is one of these.
When an elements' charge is increased in a chemical equation.
Series: A useful guide for predicting products of metal displacement.
Metal: A metal by itself in a chemical equation.
When an elements' charge is reduced in a chemical equation.

Down

Of Conservation: Matter can't be created or destroyed.
Replacement: HCl + AgNO3 -> AgCl + HNO3
Polar: when a compounds' shape IS symmetrical.
Planar: Shape of BBr3.
Pyramidal: Shape of NCl3.
Br2, I2, N2, Cl2, H2, O2, F2
C2H3O2 -> CO2 + H2O
A number or symbol multiplied with a variable.
Substance that changes in a chemical reaction.
A lasting attraction between atoms.
Na + Cl -> NaCl
Charge: Ag, Zn, Al are examples of this.
Shape of H2O.
Zncl2 is an example of this.
Shape of BeH2.
The process of reactants forming a product.

32 Clues: Shape of H2O. • Shape of CH4. • Shape of BeH2. • Na + Cl -> NaCl • 2NaCl -> 2Na + Cl2 • C2H3O2 -> CO2 + H2O • Planar: Shape of BBr3. • Mass: Physical property. • Pyramidal: Shape of NCl3. • Br2, I2, N2, Cl2, H2, O2, F2 • Zncl2 is an example of this. • A basic unit of a chemical element. • A lasting attraction between atoms. • Replacement: Zn + 2HCl -> ZnCl2 + H2 • ...

Chapter 7 Vocab 2024-01-10

Across

Combine two or more reactants into a single, more complex product.
A combination of chemical formulas and symbols that models a chemical reaction.
In a combustion reaction a substance, usually called fuel reacts with oxygen.
A single reactant breaks down into two or more products.
One element in a compound is replaced by another element.
Any instance in which electrons are lost.

Down

Two compounds swap cations or anions with each other
A process that changes a substance into one or more different substances.
A number placed in front of a chemical formula within a chemical equation.
The mass of one mole of a substance.
The gaining of electrons during a chemical reaction is called perhaps.
Substances that reactants combine to produce products.
Substances that enter into a chemical reaction.
One mole is six point zeron two times ten to the power of 23.

14 Clues: The mass of one mole of a substance. • Any instance in which electrons are lost. • Substances that enter into a chemical reaction. • Two compounds swap cations or anions with each other • Substances that reactants combine to produce products. • A single reactant breaks down into two or more products. • One element in a compound is replaced by another element. • ...

Chemical Reactions 2025-03-16

Across

A product of the thermal decomposition of calcium carbonate is calcium ________
A substance formed from a chemical reaction
A substance that speeds up a chemical reaction without being used up.
A type of reaction where energy is absorbed
A reaction where a fuel reacts with oxygen

Down

The type of reaction where energy is released
A law that states mass is neither created nor destroyed in a chemical reaction
A substance used up in a chemical reaction
One of the products of a combustion reaction
A type of change where new substances are formed

10 Clues: A substance used up in a chemical reaction • A reaction where a fuel reacts with oxygen • A substance formed from a chemical reaction • A type of reaction where energy is absorbed • One of the products of a combustion reaction • The type of reaction where energy is released • A type of change where new substances are formed • ...

chemistry 4 2024-05-15

Across

Formation of a solid in a solution during a chemical reaction.
Chemical reaction that involves burning in the presence of oxygen.
Process of using electricity to cause a chemical change.
Reaction that releases heat.
Reaction that absorbs heat.

Down

Process by which plants convert light energy into chemical energy.
Reaction where a substance loses electrons.
Chemical reaction in which two or more substances combine to form a new compound.
Reaction between an acid and a base to form water and a salt.
Reaction where a substance gains electrons.

10 Clues: Reaction that absorbs heat. • Reaction that releases heat. • Reaction where a substance loses electrons. • Reaction where a substance gains electrons. • Process of using electricity to cause a chemical change. • Reaction between an acid and a base to form water and a salt. • Formation of a solid in a solution during a chemical reaction. • ...

Chemistry Crossword 2014-11-07

Across

An enzyme found in plant and animal cells.
The smallest part of an element that is representative of that element.
Invisible negatively charged particle that orbits the nucleus of an atom.
Vertical column of elements in the table.
Produced when two non-metals are combined.
Can be in-between metals and non-metals.
Produced when a metal and non-metal are combined.
Positively charged particle in the nucleus of an atom.
Came from the Greek word,"khemia" meaning juice of a plant.
Positive charges.
The number that represents the amount of atoms in a chemical formula.
Substances that start a reaction.
The positive charged centre of an atom.
A chemical change, which releases heat energy

Down

Anything that has mass and occupies space.
Substance(s) created by a reaction.
A slow chemical reaction in which the metal is decomposed when it reacts with oxygen.
Group 9, period 6.
Neutral particle in the nucleus of an atom.
The speed of a chemical reaction.
Measure of atomic mass; (amu).
Group 15, period 7.
An organic catalyst.
Horizontal row of elements in the periodic table.
Most reactive non-metals.

Chemistry crossword 2015-11-17

Across

Vertical column of elements in the periodic table
Neutral particle in a nucleus of an atom
Hydrogen Symbol
An experiment in which is one or more products of a chemical reaction can escape
A reaction that takes place when two or more substances form new substances
Dull, Brittle element that does not conduct electricity.
Change that results when two or more substances react to create a different substance or substances
Smallest part of a element
something that resists electricity
Invisible negatively charged particle that orbits the neclues of an atom
Water's chemical formula
Change of state from liquid to solid
Gold Symbol
The most reactive element
Group 1 elements in the periodic table. Not including oxygen

Down

Combining of pure substance
reaction Chemical reaction that absorbs energy
A compound made from a non-metal and a non-metal
Change of state from solid to liquid
orbit of electrons around the nucleus of an atom
Number of protons in a nucleus
Slow chemical change that occurs when oxygen in the air reacts with metal
Gases least reactive non metal
Gas, Solid and Liquid
Potassium Symbol

25 Clues: Gold Symbol • Hydrogen Symbol • Potassium Symbol • Gas, Solid and Liquid • Water's chemical formula • The most reactive element • Smallest part of a element • Combining of pure substance • Number of protons in a nucleus • Gases least reactive non metal • something that resists electricity • Change of state from solid to liquid • Change of state from liquid to solid • ...

Unit B Vocab 2017-11-08

Across

anything that has makes and takes up space
A new substance formed in a chemical reaction
A compound that forms from a combination of two non-metals
The most reactive group of metals
Anything on the Periodic Table
a chemical reaction which one or more reactants can escape
Scientist famous for the billiard ball theory and the first atomic symbols
Organic catalysts found in your body
When Two nonmetals are combined
An element in between a metal and non-metal
A slow chemical reaction when metal is eaten away
Abbreviation for Workplace Hazardous Material Information System
A gas important for our survival

Down

Really reactive non-metals
The most unreactive non-metals
A combination of two or more substances
pounded or rolled into sheets
A negative charge in an atom
To eat away
A chemical reaction which forms a new substance and gives off energy
Mixture of two or more pure substances that look like one
a clouded mixture that can't be separated
The substances that react with one another
stretching metal into a long wire
The atomic symbol for Mercury

25 Clues: To eat away • Really reactive non-metals • A negative charge in an atom • pounded or rolled into sheets • The atomic symbol for Mercury • The most unreactive non-metals • Anything on the Periodic Table • When Two nonmetals are combined • A gas important for our survival • The most reactive group of metals • stretching metal into a long wire • Organic catalysts found in your body • ...

enzymes 2025-04-27

Across

reactions used to break apart molecules
when an enzyme loses its shape and can’t work anymore
the region on an enzyme where a substrate binds
a measure of acidity and alkalinity that affects enzymes
reactions used to build proteins
what type of molecule most enzymes are made from
the energy required to start a chemical reaction.
the best condition for an enzyme to work at its fastest
model describing the exact fit between enzyme and substrate

Down

enzymes help speed up all the important chemical reactions needed for these to happen in living things
model where the enzyme slightly changes shape to fit the substrate
the molecule an enzyme acts on
hot or cold...effects the rate of enzyme reactions
a gas that affects the rate of enzyme function
when all the enzyme active sites are full, and adding more substrate doesn’t speed up the reaction
substances that bind to enzymes and decrease their ability to function
how quickly a chemical reaction happens
a substance that speeds up a chemical reaction
the amount of enzyme or substrate present, affects rate of reactions
what speeds up reactions without being used up?

20 Clues: the molecule an enzyme acts on • reactions used to build proteins • reactions used to break apart molecules • how quickly a chemical reaction happens • a gas that affects the rate of enzyme function • a substance that speeds up a chemical reaction • the region on an enzyme where a substrate binds • what speeds up reactions without being used up? • ...

Chemisty Rules 2013-06-13

Across

A new substance produced in a chemical reaction
Occurs when the form of a substance changes, but the kind of the substance remains the same.
The breakdown of a metallic substance due to a chemical reaction which substances in the environment.
The properties that show how a substance reacts when combined with other substances.
A compound produced when iron reacts with oxygen and water in the environment.
A plasic made from scratch derived from plants like corn and potato.
a letter/ letters of the alphabet used to represent an atom of a specific chemical element.
The ability for a substance to transfer heat.
A large molecule made up of small repeating subunits chemically bonded together.
capable of decomposing by the action of micro-organisms.
Both a philosophy and an ancient practice of science
The properties of a substance that can be obercved or examined without changing the composition of a substance.
a row across the periodic table.
A pure substance made up of two or more different atoms chemically bond together.
A substance made up of different types of particles, physically combined.

Down

When the chemical makeup of a substance changes and a new substance or substances are formed.
A column down the periodic table
The ability of a substance to catch fire.
The ability of a substance to transfer electricity
The green patina caused by the reaction of copper with the air or sea water over a long period of time.
How shiny a material is.
The ability of a substance to bend or to be hammered into different shapes.
Does not break down.
A pure substance made up of only one type of atom and can only be broken down into protons, eletrons & neutrons which are made of one proton and one electron. Protons can them be proken down into quarks, anti quarks-downand semi quarks.
a collection of sympols and numbers that represent the number of atoms in a particle of an element or compound.
The ability of a substance to be drawn into wires.
How poisonous a substance is.
A characteristic or feature of a substance.
Reaction Occurs when a substance changes to produce a new substance.
A substance used up in a chemical reaction.
A molecule consisting of two atoms.

31 Clues: Does not break down. • How shiny a material is. • How poisonous a substance is. • A column down the periodic table • a row across the periodic table. • A molecule consisting of two atoms. • The ability of a substance to catch fire. • A characteristic or feature of a substance. • A substance used up in a chemical reaction. • The ability for a substance to transfer heat. • ...

Chemistry Crossword 2025-07-15

Across

To divide something using a sharp tool.
The smallest unit of matter.
A tiny piece that makes up matter.
A hot, charged state of matter found in stars and lightning.
The new substance made in a chemical reaction.
When a solid turns into a liquid.
A chemical change involving oxygen (like rusting).
To change the shape of something without breaking it.
Two or more substances combined without bonding.
When substances change to make something new.
When gas changes into a liquid.
A state of matter with a fixed shape and volume.
The path where electrons move around the nucleus.
When a liquid becomes a gas quickly by heating.
A chemical reaction where simpler substances form a more complex one.
The centre of an atom containing protons and neutrons.
A negatively charged particle that orbits the nucleus.
A positively charged particle in the nucleus.
To take substances apart.

Down

A chemical reaction that breaks a compound into simpler parts.
A chemical reaction that involves burning.
Two or more atoms joined together.
A substance made of different types of atoms bonded together.
When a solid mixes into a liquid to form a solution.
When a liquid slowly changes into a gas.
A chemical change where oxygen is removed.
When a solid turns straight into a gas.
To combine two or more substances.
A state of matter that flows and takes the shape of its container.
An atom that has gained or lost electrons and has a charge.
To press something until it breaks or loses shape.
When atoms join together.
The slow breakdown of metals (like rust).
How much mass is in a certain volume.
A state of matter that spreads out to fill any space.
The form or outline of an object.
A substance made of only one kind of atom.
A particle with no charge found in the nucleus.
The starting substances in a chemical reaction.
When a liquid becomes a solid.

40 Clues: When atoms join together. • To take substances apart. • The smallest unit of matter. • When a liquid becomes a solid. • When gas changes into a liquid. • When a solid turns into a liquid. • The form or outline of an object. • Two or more atoms joined together. • A tiny piece that makes up matter. • To combine two or more substances. • How much mass is in a certain volume. • ...

TYPES OF CHEMICAL REACTIONS 2024-05-05

TYPES OF CHEMICAL REACTIONS crossword puzzle

Across

The name of the process by which basic copper carbonate and silver sulphide is formed on copper and silver respectively.
A reaction in which an insoluble salt is formed.
The experimental setup with which the electrolysis of an electrolyte like water or brine is done.
The electrode that is connected to the negative terminal of the battery.
A common name for the compound which is formed from the combination of quicklime and water. It is also used for whitewashing walls.
A substance that inhibits or slows down oxidation.
A reaction in which an acid and base react to form a salt and water.
A reaction in which a single product is formed from two or more reactants.
Gradual destruction of a metal when it is exposed to moisture, oxygen, acids, or certain gases in the atmosphere.
The common name of the layer that is formed on iron when it is exposed to moisture and oxygen.
Substance that is formed after a chemical change. They are usually found towards the right of the arrow in a chemical equation.
The substance that gets oxidised is also known as this.
The type of decomposition that occurs due to supply of heat. This reaction occurs when hydrated ferrous sulphate crystals are heated.
Chip packets are flushed with this gas to prevent the chips from becoming rancid.

Down

A reaction in which a single reactant is broken down into simpler products.
A reaction in which a highly reactive metal displaces/replaces a lesser reactive metal from its salt solution.
Substance that undergo a chemical change. They are usually found towards the left of the arrow in a chemical equation.
The name of the insoluble solid that is formed during a precipitation reaction.
The type of decomposition that occurs due to passing of electricity through a compound.
A substance that increases or decreases the rate of a chemical reaction without being consumed itself.
A reaction in which heat energy is absorbed from the surroundings.
A reaction in which two reacting compounds exchange their ions in aqueous solutions.
The electrode that is connected to the positive terminal of the battery.
The oxidation of oil or fat containing food items when they are kept in the open for a long time, resulting in unpleasant odour or taste.
Compounds that contain molecules of water of crystallisation.
The substance that gets reduced is also known as this.
The reaction that occurs when a substance loses oxygen or gains hydrogen.
The type of decomposition that occurs due to exposure to sunlight. This reaction occurs with compounds like silver chloride and silver bromide.
The reaction in which both reduction and oxidation occur.
A reaction in which heat energy is released into the surroundings.
The reaction that occurs when a substance gains oxygen or loses hydrogen.

31 Clues: A reaction in which an insoluble salt is formed. • A substance that inhibits or slows down oxidation. • The substance that gets reduced is also known as this. • The substance that gets oxidised is also known as this. • The reaction in which both reduction and oxidation occur. • Compounds that contain molecules of water of crystallisation. • ...

Chemistry Bonus 2024-05-02

Across

something made as a result of a chemical reaction.
a description of a chemical reaction, including what reacts, what is produced, and which direction(s) the reaction proceeds.
occurs in reversible reactions when the forward rate of the reaction is the same as the reverse rate of the reaction.
is when a solid changes directly into a gas.
a chemical bond formed when two atoms share two electrons.
measure of the average kinetic energy of particles.
is an element belonging to Group II of the periodic table.
a row (left to right) of the periodic table.
a procedure in which the concentration of an acid or base is determined by measuring how much base or acid is required to neutralize it.
amount of matter in a substance. It is commonly reported in units of grams.
include any chemical that gives off protons or H+ in water.Have a pH of less than 7
a measure of how close a measured value is to its true value.

Down

the temperature and pressure at which the solid, liquid, and vapor phases of a substance exist in equilibrium.
An ionic compound formed from reacting an acid and a base.
Avogadro's number (6.02 x 1023) of anything.
a process that absorbs heat. Endothermic reactions feel cold.
a substance that lowers the activation energy of a reaction or speeds it up without being consumed by the reaction.
a measure of the amount of energy in a system.
he substance that gets dissolved in a solvent. Usually, it refers to a solid that is dissolved in a liquid.
A strong acid is an acid that completely dissociates in water.
a process that gives off heat.

21 Clues: a process that gives off heat. • Avogadro's number (6.02 x 1023) of anything. • is when a solid changes directly into a gas. • a row (left to right) of the periodic table. • a measure of the amount of energy in a system. • something made as a result of a chemical reaction. • measure of the average kinetic energy of particles. • ...

Redox Reaction 2020-07-01

Across

Part of a voltaic cell that connects two containers and allows flow of ions.
An oxidation-reduction reaction.
The positively charged electrode of an electrical device.
A process in which an electric current forces a nonspontaneous reaction to occur.
Number assigned to keep track of electron gain or loss in redox reactions.
A system in which there's an electric current flowing while a chemical reaction occurs.
Reaction that shows either the oxidation or reduction portion of a redox reaction.

Down

Site at which oxidation or reduction; an anode or cathode.
A cell that requires a nonspontaneous chemical reaction to occur (uses battery).
Electrochemical cell in which a spontaneous chemical reaction causes a flow of electrons
A substance that tends to bring about reduction by being oxidized and losing electrons.
The loss of electron.
A substance that tends to bring about oxidation by being reduced and gaining electrons.
The negatively charged electrode of an electrical device.
The gain of electron.
Is the slow addition of one solution of a known concentration (called a titrant) to a known volume of another solution of unknown concentration until the reaction reaches neutralization, which is often indicated by a color change.

16 Clues: The loss of electron. • The gain of electron. • An oxidation-reduction reaction. • The positively charged electrode of an electrical device. • The negatively charged electrode of an electrical device. • Site at which oxidation or reduction; an anode or cathode. • Number assigned to keep track of electron gain or loss in redox reactions. • ...

Redox Reaction 2020-07-01

Across

The loss of electron.
An oxidation-reduction reaction.
The negatively charged electrode of an electrical device.
Electrochemical cell in which a spontaneous chemical reaction causes a flow of electrons
A system in which there's an electric current flowing while a chemical reaction occurs.
Is the slow addition of one solution of a known concentration (called a titrant) to a known volume of another solution of unknown concentration until the reaction reaches neutralization, which is often indicated by a color change.
A cell that requires a nonspontaneous chemical reaction to occur (uses battery).
A substance that tends to bring about reduction by being oxidized and losing electrons.

Down

The positively charged electrode of an electrical device.
A substance that tends to bring about oxidation by being reduced and gaining electrons.
Number assigned to keep track of electron gain or loss in redox reactions.
Part of a voltaic cell that connects two containers and allows flow of ions.
The gain of electron.
A process in which an electric current forces a nonspontaneous reaction to occur.
Reaction that shows either the oxidation or reduction portion of a redox reaction.
Site at which oxidation or reduction; an anode or cathode.

2nd 9 Weeks Vocabulary 2023-03-21

Across

88 elements to the left of the stair step line; most are solid at room temperature.
Are found to the right of the stair step line, most are gas at room temperature.
Negatively charged subatomic particle –
Small numbers found in some chemical formulas that tell you the number of atoms of each element present, if there is not a number it is understood as 1
The recipe for a chemical substance. Tells the number of atoms of each element in a compound or molecule
Occurs when two or more molecules interact and the molecules change into a new substance. Bonds between atoms are broken and created to form new molecules.
A pure substance that cannot be broken down into any other substance
Has a definite and constant composition, can be either an element or compound
A shorthand that scientists use to describe a chemical reaction.
Positively charged subatomic particle +
A pure substance formed when two or more elements have chemically combined through a chemical reaction to form a new substance It is represented by a formula

Down

The basic building blocks of ordinary matter
No electrical charge
A combination of many different elements, not chemically combined, can be separated
Anything that has mass and takes up space4
2 or more atoms (the same type of atom O2, or different atoms H2O) bonded together, Represents the smallest particle in a chemical compound that can take place in a chemical reaction
The amount of matter in a particle or object
Changes the form or appearance of a substance. Does not change substance into anything new.
The number in front of the element symbol that indicates the number of molecules in a chemical equation. If there is not one in front of a molecule, it is an understood 1.
Elements on both sides of the Boron stair-step zigzag line that have properties of both metals and nonmetals.

20 Clues: No electrical charge • Negatively charged subatomic particle – • Positively charged subatomic particle + • Anything that has mass and takes up space4 • The basic building blocks of ordinary matter • The amount of matter in a particle or object • A shorthand that scientists use to describe a chemical reaction. • ...

Green chemistry 2017-10-19

Across

group of atoms
drug wich can be manufactured by green chemistry
a solution that has water as solvent
product we use to create a chemical reaction
thanks to catalyst it create less of this
process of making pressure in a liquid and then making liquid evaporate at lower temperature
particule made of electron(s) proton(s) and neutron(s)
object making a faster reaction at lower temperature0

Down

the result of the chemical reaction
liquid use to detect carbon dioxide
major problem of the earth because of the humans
first state of matter at lower temperature
solid product of a chemical reaction
cloth we have to wear during a chemistry experiment
something everywere in what we eat, what we wear, what we breathe

15 Clues: group of atoms • the result of the chemical reaction • liquid use to detect carbon dioxide • solid product of a chemical reaction • a solution that has water as solvent • thanks to catalyst it create less of this • first state of matter at lower temperature • product we use to create a chemical reaction • major problem of the earth because of the humans • ...

4.2 Describing Chemical Reactions 2024-02-05

4.2 Describing Chemical Reactions crossword puzzle

Across

substances at the beginning of a reaction
when one element replaces another element in a compound
new substances after the reaction is complete
developed the principle of the law of conservation of mass
a way to show a chemical reaction using symbols
matter does not enter or leave

Down

compounds break down into simpler products
matter can enter or escape to the surroundings
two or more elements combine to make a more complex substance
an example of an open system
fuel cells react with oxygen to generate energy
a number placed in front of a chemical formula in an equation
to balance a chemical equation both sides of the equation must have the __ number of atoms
in a chemical reaction the arrow reads as ___
is not created or destroyed

15 Clues: is not created or destroyed • an example of an open system • matter does not enter or leave • substances at the beginning of a reaction • compounds break down into simpler products • new substances after the reaction is complete • in a chemical reaction the arrow reads as ___ • matter can enter or escape to the surroundings • ...

Terms for chemistry 2021-02-09

Across

two reacting chemical compounds which create more products.
A fluid that is in the air. It is clear so you cannot really see it but it is a state of matter.
products are the ending symbol from a chemical equation.
composed of only two atoms, of the same or different chemical elements.
It leads to the chemical transformation of one of the chemical equations to another.
any substance composed of identical molecules consisting of atoms of two or more chemical elements.
a multiplier or factor that measures some property.
It is a fluid that does not have an exact shape.
the process of telling solid shapes to be turned in by solution to a insoluble form.

Down

numbers and things that is involved during a reaction.
occurs when one element replaces another element in one compound.
occurs when two different atoms interact to make a different molecules or compounds.
measured in quantity of moles and it used for when a chemical equation occurs.
It is shown in chemical equations and the solution in the solvent is water.
chemical reaction in which acid and a base react quantitatively with each other.
it’s a chemical breakdown that breaks molecules together down so that new atoms are formed.
a substance reacts with oxygen gas, releasing energy in the form of light and heat.
An object that represents a shape and is not a liquid.
It is a chemical reaction shown by symbols.
it is a number represents numbers and it is found in the baseline next to the number.

20 Clues: It is a chemical reaction shown by symbols. • It is a fluid that does not have an exact shape. • a multiplier or factor that measures some property. • numbers and things that is involved during a reaction. • An object that represents a shape and is not a liquid. • products are the ending symbol from a chemical equation. • ...

Bio unit one (everything except glassware) 2022-12-07

Bio unit one (everything except glassware) crossword puzzle

Across

A kind of protien that is used to aid in reactions
Water loving
monomer of proteins
one sugar molecule
Different structures of molecules with one element ie diamond vs coal(both are carbon)
2 sugar molecule
A chemical-reaction that results in water being added
A molecule that consists of smallermolecules poly
monomer of neucleic acids
A chemical-reaction that goes from many small to one large molecules
Polymer of proteins
A solution with a ph of more than 7
the kind of fat without double bonds
forces within a molecule
Fast energy, Sugars, Biomolecule

Down

many sugar molecules
Base biomolecule Used in DNA and RNA
a chemical-reaction that goes from one large to many small molecules
A chemical-reaction that results in a water being removed
Forces between distinct separate molecules
Fastest energy but not good for long term storage, 3rd phosphate group broken to get energy from it
A testable explanation for a phenomena
Stores energy, generally hydrophobic, Biomolecule
Enzymes, main cell structure, Biomolecule
The kind of fat with double bonds
A solution with a ph of less than 7

26 Clues: Water loving • 2 sugar molecule • one sugar molecule • monomer of proteins • Polymer of proteins • many sugar molecules • forces within a molecule • monomer of neucleic acids • Fast energy, Sugars, Biomolecule • The kind of fat with double bonds • A solution with a ph of more than 7 • A solution with a ph of less than 7 • Base biomolecule Used in DNA and RNA • ...

Chemical Reactions and Nomenclature 2024-01-24

Chemical Reactions and Nomenclature crossword puzzle

Across

Usually contains H+
Other word for covalent bond
Prefix for "three"
Compound with only nonmetals or more of them than metals
Usually ends in OH
Compounds as they are after a chemical reaction
Connects the reactants to the products
Prefix for "five"
Prefix for "seven"
Equation that supports the Law of Conservation of Mass
Compounds as they are before a chemical reaction
Compound with a metal and a nonmetal
Prefix for "eight"
Reaction type that ends in CO2 and H2O
Reaction that ends with a salt and water
Represents the number of atoms in a chemical equation for a given element

Down

AB+CD->CB+AD
Elements that don't naturally exist on their own
Metals that use roman numerals for charge
Prefix for "one"
Prefix for "two"
Prefix for "four"
One reactant and multiple products
Prefix for "nine"
AB+C->CB+A
Prefix for "six"
Multiple reactants and one product
Prefix for "ten"
Represents the number of molecules in a chemical equation for a given element
Suffix for the last nonmetal in a compound

30 Clues: AB+C->CB+A • AB+CD->CB+AD • Prefix for "one" • Prefix for "two" • Prefix for "six" • Prefix for "ten" • Prefix for "four" • Prefix for "nine" • Prefix for "five" • Prefix for "three" • Usually ends in OH • Prefix for "seven" • Prefix for "eight" • Usually contains H+ • Other word for covalent bond • One reactant and multiple products • Multiple reactants and one product • ...

Chemistry - Recap (SL) 2024-08-21

Across

- The electrons in the outermost shell of an atom.
- Type of bond formed by the sharing of electrons between atoms.
- The phase transition from solid to gas without passing through the liquid state.
- A compound that contains water molecules within its crystal structure.
- The table that organizes elements by their chemical properties.
- Atoms of the same element with different numbers of neutrons.
- The energy required to remove one mole of electrons from one mole of gaseous atoms.
- Type of bond formed by the transfer of electrons.
- A reaction where an atom gains electrons.
- The attraction between atoms that allows the formation of chemical substances.

Down

- The study of the rates of chemical reactions.
- The SI unit for the amount of substance.
- A substance that speeds up a chemical reaction without being consumed.
- The number of particles in one mole of a substance.
- A subatomic particle with a negative charge.
- The number of protons in an atom's nucleus.
- The simplest whole-number ratio of elements in a compound.
- A subatomic particle with no charge found in the nucleus.
- A reaction where an atom loses electrons.
- A type of reaction that absorbs heat from the surroundings.

20 Clues: - The SI unit for the amount of substance. • - A reaction where an atom loses electrons. • - A reaction where an atom gains electrons. • - The number of protons in an atom's nucleus. • - A subatomic particle with a negative charge. • - The study of the rates of chemical reactions. • - The electrons in the outermost shell of an atom. • ...

Chemical Reactions! 2023-03-29

Across

Chemical reaction that involves the transfer of electrons between two or more species
Chemical reaction where two or more substances combine to form a single product
Chemical reaction where one element in a compound is replaced by another element
Chemical reaction where the cations and anions of two different compounds switch places

Down

Substance that undergoes a chemical change in a reaction
Chemical reaction where a single substance breaks down into two or more products
Substance that increases the rate of a chemical reaction
Substance that slows down or stops a chemical reaction
Substance formed from a chemical reaction

9 Clues: Substance formed from a chemical reaction • Substance that slows down or stops a chemical reaction • Substance that undergoes a chemical change in a reaction • Substance that increases the rate of a chemical reaction • Chemical reaction where two or more substances combine to form a single product • ...

Redox Reaction 2020-07-01

Across

Number assigned to keep track of electron gain or loss in redox reactions.
A process in which an electric current forces a nonspontaneous reaction to occur.
Electrochemical cell in which a spontaneous chemical reaction causes a flow of electrons
Is the slow addition of one solution of a known concentration (called a titrant) to a known volume of another solution of unknown concentration until the reaction reaches neutralization, which is often indicated by a color change.
Reaction that shows either the oxidation or reduction portion of a redox reaction.
The negatively charged electrode of an electrical device.
A cell that requires a nonspontaneous chemical reaction to occur (uses battery).

Down

A substance that tends to bring about reduction by being oxidized and losing electrons.
Site at which oxidation or reduction; an anode or cathode.
A system in which there's an electric current flowing while a chemical reaction occurs.
The loss of electron.
An oxidation-reduction reaction.
The gain of electron.
Part of a voltaic cell that connects two containers and allows flow of ions.
A substance that tends to bring about oxidation by being reduced and gaining electrons.
The positively charged electrode of an electrical device.

Chemistry Revision Y9 2022-04-04

Across

A subatomic particle with a positive charge.
A chemical reaction in which heat is absorbed from surroundings.
A negatively charged ion.
An acid and base reaction produces...
Mg
A positively charged ion.
A subatomic particle with a negative charge.
The food produced during photosynthesis is a sugar known as...
An acid and carbonate reaction produces...
F
NaOH
H
A chemical reaction in which heat is released into surroundings.
C
HCl
The process that releases energy from glucose.
The total number of protons and neutrons in the nucleus of an atom.
N
A series of chemical reactions that produce a plant's food.
The form of cellular respiration that requires oxygen and glucose, however instead produces lactic acid instead of oxygen gas.

Down

The green pigment found in leaves.
KOH
The energy produced from cellular respiration, shortened to ATP.
The number of protons in the nucleus of an atom.
An acid and base reaction is also known as...
Na
O
The form of cellular respiration that requires oxygen and glucose.
An acid and metal reaction produces...
Li
A subatomic particle with a neutral charge.

31 Clues: F • H • O • C • N • Mg • Na • Li • KOH • HCl • NaOH • A negatively charged ion. • A positively charged ion. • The green pigment found in leaves. • An acid and base reaction produces... • An acid and metal reaction produces... • An acid and carbonate reaction produces... • A subatomic particle with a neutral charge. • A subatomic particle with a positive charge. • ...

AP Bio Chapter : Themes in the Study of Life 2024-06-06

AP Bio Chapter : Themes in the Study of Life crossword puzzle

Across

Reaction The making and breaking of chemical bonds, leading to changes in the composition of matter
The point at which the reactions offset one another exactly
A subatomic particle with a positive charge
The smallest unit of matter that still retains the properties of an element
The dissolving agent of a solution
A subatomic particle with a negative charge
A starting material in a chemical reaction
A substance that is dissolved in a solution
A substance consisting of two or more different elements combined in a fixed ratio

Down

Electron An electron in the outermost electron shell
Bond A chemical bond resulting from the attraction between oppositely charged ions
A substance that cannot be broken down to other substances by chemical reactions
One of several atomic forms of an element, each with a different number of neutrons
Bond A type of strong chemical bond in which two atoms share one or more pairs of valence electrons
A material resulting from a chemical reaction
Number The sum of protons plus neutrons in the nucleus of an atom
Level The different states of potential energy that electrons have in an atom
Number The number of protons in the nucleus of an atom
Bond A type of weak chemical bond formed when a slightly positive hydrogen atom is attracted to a slightly negative atom
A subatomic particle with no charge

20 Clues: The dissolving agent of a solution • A subatomic particle with no charge • A starting material in a chemical reaction • A subatomic particle with a positive charge • A subatomic particle with a negative charge • A substance that is dissolved in a solution • A material resulting from a chemical reaction • Electron An electron in the outermost electron shell • ...

Chapter 7 vocab. 2021-12-09

Across

releases heat energy.
absorbs heat energy.
the amount of substance presents in a certain volume.
substance that speeds up a chemical reaction.
tells how fast a reaction occurs after it has started.

Down

the energy that starts a chemical reaction.
the substance that slows down a chemical reaction.
part of the equation on the right side.
shows the reactants, products, physical state, and the extra stuff of each substance.
is the process that makes a chemical change.
part of the equation on the left side.
large protein molecules that speed up a reaction needed for the cells to work correctly.

12 Clues: absorbs heat energy. • releases heat energy. • part of the equation on the left side. • part of the equation on the right side. • the energy that starts a chemical reaction. • is the process that makes a chemical change. • substance that speeds up a chemical reaction. • the substance that slows down a chemical reaction. • ...

Raean Majd 2026-03-03

Across

the sum of all chemical reactions in a cell
substances involved in a chemical reaction
a factor that inhibits enzymatic reactions
shows that the active site moles to the substrate
substances that are produced from a chemical reaction
shows that the active site is complementary to the substrate

Down

a reaction that releases energy into the surrounding
the minimum amount of energy required for a chemical reaction to occur
a reaction that absorbs energy from the surroundings
breaking down large molecules into smaller molecules
making large molecules out of smaller ones
a factor that increases enzymatic reactions

12 Clues: substances involved in a chemical reaction • making large molecules out of smaller ones • a factor that inhibits enzymatic reactions • the sum of all chemical reactions in a cell • a factor that increases enzymatic reactions • shows that the active site moles to the substrate • a reaction that releases energy into the surrounding • ...

Rates of reactions - Chemistry Topic 6 2023-07-03

Rates of reactions - Chemistry Topic 6 crossword puzzle

Across

What has to be used to calculate the rate of reaction on a curved line of best fit
A substance that speeds up a chemical reaction without being used up
Variable in an investigation that is measured
When no energy or matter can enter or exit
A factor that affects the rate of reaction
When the reactants and products have formed a balance
The speed at which a reaction happens
The theory of how chemical reactions occur
A reaction in which energy is transferred from the reaction to the surroundings

Down

Principle where if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium moves to counteract the change
A reaction in which energy is transferred from the surroundings to the reaction
A factor that affects the rate of reaction
Measure of the relative clarity of a liquid
When the reactants and products are present in a reversible reaction in unchanging amounts.
Variable in an investigation that is changed
In a reversible reaction, reaction which forms the products
In a closed system, when reactants form products and then products re-form reactants
In a reversible reaction, reaction which 're-forms' reactants
A factor that affects the rate of reaction
This is what is lowered by a catalyst to increase the rate of a reaction

20 Clues: The speed at which a reaction happens • When no energy or matter can enter or exit • A factor that affects the rate of reaction • A factor that affects the rate of reaction • A factor that affects the rate of reaction • The theory of how chemical reactions occur • Measure of the relative clarity of a liquid • Variable in an investigation that is changed • ...

science vocabulary 2016-01-15

Across

The new substance formed by the chemical reaction
Substances that have gone through a chemical reaction
Alters form or appearance but does not make new substance
No matter is allowed to enter or leave
Undergo change that turns substance into a new one
A solid that forms from solution during a chemical reaction
Matter is allowed to enter and leave

Down

When energy is absorbed
The study of matter and how matter changes
A symbol used in a program to specify one of the elements of an array
Short, easy way to show a chemical reaction
A number placed in front of a chemical formula in an equation
When energy is released

13 Clues: When energy is absorbed • When energy is released • Matter is allowed to enter and leave • No matter is allowed to enter or leave • The study of matter and how matter changes • Short, easy way to show a chemical reaction • The new substance formed by the chemical reaction • Undergo change that turns substance into a new one • ...

Vocab 2021-11-18

Across

A factor that measures some properties.
Reaction A chemical reaction in which heat energy is released.
A substance that speeds up a chemical reaction but isn't a permanent change.
Substance that forms as a result of a chemical reaction.
reaction A process that produces chemical change, resulting in new substances.

Down

A substance that exists before a chemical reaction begins.
A substance that slows down a chemical reaction.
A letter or number that is printed slightly below or the side of another character.
equation A symbolic representation of a chemical reaction.
Reaction A chemical reaction in which heat energy is absorbed.

10 Clues: A factor that measures some properties. • A substance that slows down a chemical reaction. • Substance that forms as a result of a chemical reaction. • A substance that exists before a chemical reaction begins. • equation A symbolic representation of a chemical reaction. • Reaction A chemical reaction in which heat energy is released. • ...

Layla's Crossword 2022-01-19

Across

A substance that undergoes a chemical change in a chemical reaction.
A symbolic representation of a chemical reaction.
A solid that forms during a chemical reaction.
The altering of an object's chemical composition by rearranging the atoms.

Down

A reaction that releases energy; it becomes warm or hot.
A chemical reaction that produces more reactant molecules than it started with.
The substance produced as a result of a chemical reaction.
A chemical reaction that makes one molecule from two or more.
A reaction that takes in energy
A substance that undergoes a chemical change in a chemical reaction.

10 Clues: A reaction that takes in energy • A solid that forms during a chemical reaction. • A symbolic representation of a chemical reaction. • A reaction that releases energy; it becomes warm or hot. • The substance produced as a result of a chemical reaction. • A chemical reaction that makes one molecule from two or more. • ...

Layla's Crossword 2022-01-19

Across

A substance that undergoes a chemical change in a chemical reaction.
A symbolic representation of a chemical reaction.
A solid that forms during a chemical reaction.
The altering of an object's chemical composition by rearranging the atoms.

Down

A reaction that releases energy; it becomes warm or hot.
A chemical reaction that produces more reactant molecules than it started with.
The substance produced as a result of a chemical reaction.
A chemical reaction that makes one molecule from two or more.
A reaction that takes in energy
A substance that undergoes a chemical change in a chemical reaction.

Vocab 2021-11-18

Across

A substance that speeds up a chemical reaction but isn't a permanent change.
equation A symbolic representation of a chemical reaction.
Reaction A chemical reaction in which heat energy is released.
reaction A process that produces chemical change, resulting in new substances.
Substance that forms as a result of a chemical reaction.
A letter or number that is printed slightly below or the side of another character.

Down

A substance that slows down a chemical reaction.
Reaction A chemical reaction in which heat energy is absorbed.
A factor that measures some properties.
A substance that exists before a chemical reaction begins.

Digestion Overall 2023-05-04

Across

Chemical reaction in which molecules are broken down
stores bile (2 words)
salivary glands make this in the mouth to digest starch
Chemical reaction in which water is added to break larger molecules into smaller
enzyme that digest nucleic acid
muscle movement that moves food forward in the canal
The process of digestion that involves movement of food.
The process of digestion that involves introducing food stuff to your body
The process of digestion that involves getting rid of unusable food matter.
The removal of nutrients from your food and into your blood supply
The process of digestion that involves break down complex food molecules into their chemical building blocks.
Chemical reaction in which molecules are built into larger molecules
enzyme that breaks down lipids

Down

a membrane that supports and positions the intestines
the longest of the 2 intestines
projects that increase surface area
place where most of the digestion takes place (2 words)
enzyme made by the stomach that digest proteins
moist lump of food made in the mouth
Chemical reaction in which water is removed to make a larger molecule
tube that connects the mouth to the stomach
The process of digestion that involves increasing the surface area of the food
yellowish green liquid used to digest fat
enzyme that digest milk proteins
pulpy fluid that moves from the stomach to the small intestine

25 Clues: stores bile (2 words) • enzyme that breaks down lipids • the longest of the 2 intestines • enzyme that digest nucleic acid • enzyme that digest milk proteins • projects that increase surface area • moist lump of food made in the mouth • yellowish green liquid used to digest fat • tube that connects the mouth to the stomach • enzyme made by the stomach that digest proteins • ...

Formative A review 2022-10-02

Across

building blocks of polymers
A substance produced in a chemical reaction
data descriptive data
acid Building blocks of protein
data numerical data
the starches and sugars present in foods
A jellylike fluid inside the cell in which the organelles are suspended
energy Energy needed to get a reaction started
A cell that contains a nucleus and membrane bound organelles
Chemical reaction ins which energy is absorbed
apparatus stack of membranes in the cell that modifies, sorts, and packages proteins from the endoplasmic reticulum
Control center of the cell
The reactant on which an enzyme works.
An organelle found in plant and algae cells where photosynthesis occurs
A testable prediction; an educated guess
variable variable that is manipulated
Chemical Reaction in which energy is primarily given off in the form of heat
A type of protein that speeds up a chemical reaction in a living thing
A network of fibers that holds the cell together, helps the cell to keep its shape, and aids in movement
wall A rigid layer of nonliving material that surrounds the cells of plants and some other organisms.
bilayer double-layered sheet that forms the core of nearly all cell membranes
An organic compound that is made of one or more chains of amino acids and that is a principal component of all cells
theory idea that all living things are composed of cells, cells are the basic units of structure and function in living things, and new cells are produced from existing cells
Makes proteins
An organelle containing digestive enzymes
A logical interpretation based on prior knowledge and experience.
Basic unit of life

Down

A chemical substance that is present at the start of a chemical reaction
group the group that does not receive the experimental treatment.
Basic units of DNA molecule, composed of a sugar, a phosphate, and one of 4 DNA bases
substance that speeds up the rate of a chemical reaction
Cell organelle that stores materials such as water, salts, proteins, and carbohydrates
permeable a property of cell membranes that allows some substances to pass through, while others cannot
Reticulum A system of membranes that is found in a cell's cytoplasm and that assists in the production, processing, and transport of proteins and in the production of lipids.
Powerhouse of the cell
reaction the process by which one or more substances change to produce one or more different substances
A tiny cell structure that carries out a specific function within the cell
large compound formed from combinations of many monomers
variable The outcome factor; the variable that may change in response to manipulations of the independent variable.
well-tested explanation that explains a broad range of observations
A unicellular organism that lacks a nucleus and membrane bound organelles
fats and oils
membrane A cell structure that controls which substances can enter or leave the cell.

43 Clues: fats and oils • Makes proteins • Basic unit of life • data numerical data • data descriptive data • Powerhouse of the cell • Control center of the cell • building blocks of polymers • acid Building blocks of protein • variable variable that is manipulated • The reactant on which an enzyme works. • the starches and sugars present in foods • A testable prediction; an educated guess • ...

Chemical Reaction Vocabulary - Amplify 2023-03-13

Chemical Reaction Vocabulary - Amplify crossword puzzle

Across

an object, diagram, or computer program that helps us understand something by making it simpler to see
a group of atoms joined together in a particular way
something that can be observed about a substance, such as color, smell, or boiling point
the relative size of things
able to cause damage
to change the order or position of something
a substance that is added to soil to help plants grow

Down

an ending substance that is made during a chemical reaction
a process in which atoms rearrange to for nuew sutstances
a structure formed by repeating group of atoms that link together in a large network
something that is made of all the same atoms or groups of atoms
letters and numbers showing the types and number of atoms that repeat to make up a substance
the temperature at which a substance changes from the solid phase to the liquid phase
the tiny pieces that all matter is made of
the temperature at which a substance changes from the liquid phase to the gas phase
a starting substance that is part of a chemical reaction

16 Clues: able to cause damage • the relative size of things • the tiny pieces that all matter is made of • to change the order or position of something • a group of atoms joined together in a particular way • a substance that is added to soil to help plants grow • a starting substance that is part of a chemical reaction • ...

Alex Schwemer 2019-10-18

Across

what you add to the solvent
a homogeneous mixture of at least two substances
a property that cannot be seen unless its through a reaction
same all the way through
makes up everything
The scientist that organized the periodic table.

Down

a property that can be seen or changed without a chemical reaction
a jelly substance that is formed
a table that lists all the elements and their mass
a solution that is completely full
a substance that changes in a chemical reaction
the end result of a chemical reaction
The mass of an atom
cannot be broken down into any simpler substance.
composed of two or more elements
what you start with in a mixture

16 Clues: The mass of an atom • makes up everything • same all the way through • what you add to the solvent • a jelly substance that is formed • composed of two or more elements • what you start with in a mixture • a solution that is completely full • the end result of a chemical reaction • a substance that changes in a chemical reaction • ...

photosynthesis and cellular respiration 2022-11-04

photosynthesis and cellular respiration crossword puzzle

Across

Co2
input of the chemical reaction
Cannot produce without its own food
primary producer
chemical energy
sugar
where cellular respiration happens
output of the chemical reaction

Down

Heat energy
contains chlorophyll and in which photosynthesis takes place
reactants and products
how plants make food
breaks down glucose
green pigment that turns the plant green
O2
tiny, microscopic and critical for photosynthesis.

16 Clues: O2 • Co2 • sugar • Heat energy • chemical energy • primary producer • breaks down glucose • how plants make food • reactants and products • input of the chemical reaction • output of the chemical reaction • where cellular respiration happens • Cannot produce without its own food • green pigment that turns the plant green • tiny, microscopic and critical for photosynthesis. • ...

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