Type
Crossword
Description

What is a substance composed of 2 or more elements? Compounds
What forms compounds to become chemically stable? Atoms
What is the force that holds together the atoms in a compound? Chemical Bonds
This forms when electrons in the outer energy levels are transferred from one atom to another. Ionic Bond
A chemical bond in which two or more atoms share electrons. Covalent Bonding
What happens when a run in which 1 or more substances are changed to new substances? Chemical Reactions
Substances that are about to react Reactants
New substances produced Products
This is neither created or destroyed during a chemical reaction. Mass
This uses chemical formulas and symbols to describe a chemical reaction and the products it makes. Chemical Equation
Balanced chemical reaction - have the __________ number of atoms of each element on both sides of the equation. Same
Chemical Energy involves what? Energy Exchange
The rate at which reactants change to products over time. Reaction rate
Reaction rates depend on how ofter _______________collide Particles
This represents the number of atoms of the element within the compound. Subscript

Chemical Reactions Crossword

Type
Crossword
Description

A chemical reaction that requires heat Endothremic
The law that states that energy cannot be created or destroyed but can be change another LCE
The minimum amount of energy required to start a chemical reaction Activation Energy
A substance that slows down or stops a chemical reaction Inhibitor
A substance that changes the rate of a chemical reaction without being used up or changed very much Catalyst
A chemical reaction in which heat is released to the surroundings Exothermic
A combination of chemical symbols and numbers to represent a substance Chemical Formula
A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products Chemical Equation
A substance or molecule that participates in a chemical reaction Reactant
The substance that forms in a chemical reaction Product
2 or more substances combine to form a new compound Synthesis
A compound decomposes into 2 or more simpler substances Decomposition
1 element replaces another element in a compound Single Replacement

CHEMICAL REACTIONS Crossword

Type
Crossword
Description

A description of a change in which a system absorbs energy from its surrounding. ENDOTHERMIC
A description of a change in which a system releases energy to its surrounding. EXOTHERMIC
A substance that undergoes change in a chemical reaction. REACTANT
New substances formed as a result of a chemical reaction. Products
A chemical reaction in which two or more substances react to from a single substance. Synthesis Reaction
A chemical reaction in which a compound breaks down into two or more simpler substances. Decomposition Reaction
A chemical reaction in which one element takes another elements place in a compound. Single-replacement Reaction
A chemical reaction in which two compound exchange positive ions and form two new compounds. Double-replacement Reaction
The rate at which reactants change into products over time. Reaction Rate
A chemical reaction in which a substance reacts rapidly with oxygen, often producing heat and light. Combustion Reaction
A chemical reaction in which electrons are transferred from one reactant to another. Oxidation-reduction Reaction
The action or fact of making a specified thing smaller or less in amount, degree, or size. Reduction
A substance to be deposited in solid form from a solution. Precipitate
A substance that affects the rate of a chemical reaction without being used up in the reaction. Catalyst
Numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product. Coefficients
A representation of a chemical reaction in which the reactants and products are expressed as formulas. Chemical Equation
A state in which the forwards and reverse paths pf a physical or chemical change take place at the same time. Equilibrium

Chemical Reactions Crossword

Type
Crossword
Description

A process during which chemical bonds between atoms are broken and new ones are formed. Producing one or more different substances. Chemical Reaction
The starting materials in a chemical reaction. Reactant
The new substances that are formed in a chemical reaction. Product
A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products. Chemical Equation
Tells how many atoms, molecules, or formula units take part in a reaction. Coefficient
Tells how many atoms of an element are contained in one molecule or formula unit. Subscript
Energy is released. Exothermic Reaction
Energy is absorbed Endothermic Reaction
A condition in which different elements are equal or in the correct proportions. There are three types of visual balance: symmetry, asymmetry, and radial. Balance
A chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light. Combustion Reaction
A chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light combustion reaction A chemical reaction in which two or more reactants combine to produce a single product. Synthesis Reaction
A reaction in which a single compound breaks down to form two or more simpler substances. Decomposition Reaction
Chemical reaction in which one element replaces another element in a compound. Single-displacement Reaction
A reaction in which a gas, a solid precipitate, or a molecular compound forms from the exchange of ions between two compounds. Double-displacement Reaction
A solid that forms from a solution during a chemical reaction. Precipitate
A chemical change in which a substance combines with oxygen, as when iron oxidizes, forming rust. Oxidation
Any process in which electrons are added to an atom or ion. Reduction
A substance that initiates or accelerates a chemical reaction without itself being affected. Catalyst

Atoms, Elements, and Compounds Crossword

Type
Crossword
Description

are the building blocks of matter Atoms
Neutrons and Protons are located here Nucleus
Positively charged particles Protons
Particles that have no charge neutrons
Negitively charged particles Electrons
pure substances that cannot be broken down into other substances by physical or chemical means Element
Atoms of the same element that have different numbers of neutrons Isotopes
A pure substance formed when two or more different elements combine Compound
chemical bond that forms when electrons are shared Covalent bond
a compound in which the atoms are held together by covalent bonds Molecule
an electrical attraction between two oppositely charged atoms or groups of atoms ionic bonds
process by which atoms or groups of atoms in substances are reorganized into different substances chemical reaction
substance that lowers the activation energy needed to start a chemical reaction catalyst
biological catalyst that speed up the rate of chemical reactions in biological processes enzymes
specific location where a substrate binds on an enzyme active site
molecules that have an unequal distribution of charges polar molecules
the electrostatic attraction hydrogen bond
the substance that is dissolved in the solvent solute
substance in whih another substance is dissolved solvent
anothe name for homogeneous mixture solution

Chemistry Review Crossword

Type
Crossword
Description

A change in matter that produces new substances with new properties. (2words) chemicalreaction
New substances produced in a chemical reaction. products
Substances that react together in a chemical reaction. reactants
A system for organizing elements into columns and rows based on their properties. (2words) periodictable
Rows in the periodic table. period
Columns in the periodic table. family
A group of letters and subscript numbers that represent the make-up of a chemical compound. (2words) chemicalformula
An atom that has an electrical charge, either positive or negative. ion
A compound that forms between a metal and a non-metal after electrons are transferred. ionic
A compound that forms between non-metals as they share electrons. molecular
A subatomic particle found in the nucleus of an atom. It has no charge. neutron
A positively charged subatomic particle found in the nucleus of the atom. proton
A negatively charged subatomic particle that orbits the nucleus of an atom. electron
Refers to either the outer orbital of an atom or the electrons found in the outer shell. valence
A reaction in which two or more reactants combine to produce a new product. synthesis
A reaction in which one compound breaks down into two or more simpler compounds. decomposition
A reaction in which one element takes the place of another element in a compound. (2words) singledisplacement
A reaction in which the metal ions of two different compounds exchange places. (2words) doubledisplacement
The smallest unit of an element. atom
A compound that tastes sour, corrodes metal and tissue, and turns blue litmus paper red. acid
A substance that changes colour when added to an acid or a base. indicator
A compound that tastes bitter, feels slippery, corrodes tissue, and turns red litmus paper blue. base
The number in front of a product or reactant in a balanced chemical equation. coefficient
Ability to conduct (transfer) electricity. conductivity
Law describing the fact that the total mass and number of atoms is the same before and after a reaction. (3words) conservationofmass
A reaction between an acid and a base that produces salt and water. neutralization
Elements on the left side of the periodic table. They are malleable, shiny, conductive, and solid at room temperature. metals
Elements on the right side of the periodic table. They are not malleable, not conductive, and exist in a number of states at room temperature. nonmetals
A pure substance that cannot be broken down. element
A pure substance that contains two or more different elements. compound

Chemistry Vocabulary Crossword

Type
Crossword
Description

A type of matter with a fixed composition. Substance
Mixture in which different materials can easily be distinguished. Heterogeneous Mixture
Contains 2 or more gases, liquids, or solids substances blended evenly. Homogeneous Mixture
Explanation of how particles in matter behave. Kinetic Theory
Amount of energy required for a liquid to become a gas. Heat of Vaporization
Attraction formed when elements share electrons. Covalent Bond
A neutral molecule that forms as a result of electron sharing. Molecule
Substances that react. Reactants
Substances that are made. Products
More than one substances turning into other substances. Chemical Reaction
Numbers in front of each substance in a equation. Coeffecients
A formula that shows what elements are in a compound and what it will become. Chemical Formula
Force that holds atoms together in a compound. Chemical Bond
Force of attraction between opposite charges. Ionic Bond
Attraction formed when elements share electrons. Covalent Bond

Stoichiometry and Chemical Reactions Crossword

Type
Crossword
Description

The ratio of the actual yield to the theoretical yield shown as a percent. Percent Yield
A chemical substance that is present at the beginning of a chemical reaction. Reactant
The quantitative relationship between two or more substances especially in processes involving chemical or physical change. Stoichiometry
A chemical substance formed as a result of a chemical reaction. Product
A reactant in a chemical reaction that determines the amount of product that is formed. Limiting Reactant
The reactant in a chemical equation with a greater amount than necessary to react completely with the limiting reactant. Excess Reactant
A process in which one or more substances are changed into others. Chemical Reaction
One element replaces another element in a compound. Single Replacement
Two or more substances combine to form a new compound. Synthesis
A compound decomposes into two or more simpler substances. Decomposition
A representation of a chemical reaction that uses symbols to represent the relationship between the reactants and the products. Chemical Equation
A unit of amount, the amount of a substance containing 6.02x10^23 entities. Moles
Used in a chemical equation to determine mole ratios. Coefficients
The mass of one mole of a substance. Molar Mass
A substance that changes the rate of a chemical reaction without being used up or changed very much. Catalyst
A chemical reaction where heat is released to it's surroundings. Exothermic
A combination of chemical symbols and numbers to represent a substance. Chemical Formula
A chemical reaction that needs heat. Endothermic
The smallest amount of energy needed to start a chemical reaction. Activation Energy
What holds individual atoms of compounds together. Chemical Bonds

Chemical Formulas and Chemical Reactions Crossword

Type
Crossword
Description

representation of what elements a compound contains and the exact number of the atoms of each elements in a unit of the compound Chemical Formula
a change in which one or more substances are converted into new substances while energy is released or absorbed Chemical Reaction
a way to describe a chemical reaction using chemical formulas and other symbols Chemical Equation
the chemicals presented before a reaction Reactants
the new chemicals presented after a reaction Products
a number that represents the number of units of each chemical taking part in a reaction Coefficient
means "written below" Subscript
the amount of valence electrons gained or lost between metals and nonmetals to become stable Oxidation Number
when water is the solvent for a reaction aqueous
an insoluble compound that comes out of solution during a double-displacement reaction precipitate
a chemical reaction that absorbs energy primarily in the form of heat endothermic
a reaction in which the energy released is in the form of heat exothermic
a reaction that occurs when a substance reacts with oxygen to release energy in the form of heat and light combustion reaction
a chemical reaction in which two or more substances combine to form another substance synthesis reaction
a chemical reaction in which one substance breaks down into two or more substances decomposition reaction
a chemical reaction in which one element replaces another element in a compound single-displacement reaction
a chemical reaction in which the positive ion of one compound replaces the positive ion of another compound double-displacement reaction

Chemistry Crossword Puzzle

Type
Crossword
Description

The scientific study of the structure, properties, and reactions of the chemical elements and the compounds they form: Chemistry
Law of Conservation and ________: MASS
A formula that shows what elements are in a compound and what it will become: Chemical Formula
More than one substances turning into other substances. Chemical Reaction
Substances that react. Reactants
Substances that are made: Product
Numbers in front of each substance in a equation: Coefficient
Pure substance found on the periodic table: Element
A type of matter with a fixed composition: Substance
A substance in which the atoms of 2 or more elements are combined: Compound
a physical property defined as the mass of a given substance divided by its amount of substance: Molar mass
the amount of matter of an object mass
a section of chemistry that involves using relationships between reactants and/or products in a chemical reaction to determine desired quantitative data: Stoichiometry
A unit of measurement for quantifying atoms and molecules: mole
The best chemistry teacher: Mrs. Alexander

chapter 2 vocabulary Crossword

Type
Crossword
Description

smallest unit of life atom
an atom that cannot be broken down any further element
substance made of atoms of different elements compound
atom that gains or loses one or more electrons ion
made of monomers bonded together, large polymer
reached when voth product and reactent are made at once equilibrium
chemical energy is released exothermic
chemical energy absorbed endothermic
catalyst for chemical reactions in living things enzymes
two or more atoms held together by covalent bonds molecule
contain carbon, hydrogen, oxygen, nitrogen, and sometimes sulfer amino acids
non polar molecules that include fats, oils, and cholesterol lipid
polymer made of monomers called amino acids protein
substances made by a chemical reaction product
products changed during a chemical reaction reactants