Type
Crossword
Description

_________ are shown to the right of the arrow Products
What does the arrow mean in a chemical equation? yields
________ are shown on the left of the arrow Reactants
a tool used to determine if a chemical reaction is balanced or unbalanced atom inventory
burning wood, rust, campfire are examples of a __________ __________ Chemical Reaction
when the total mass of the reactant is equal to the mass of the product the equation is _________ balanced
We can balance an equation by adding a _____________ in front of a formula coefficient
you may never change the __________ of a formula subscript
Law of ________ of mass conservation
T__________ C________ is a sign of a chemical reaction Temperature Change

stoichiometry Crossword

Type
Crossword
Description

process of using a alanced equation to determine the realitive masses reactants and products involved in the reaction Stoichiometry
used up when reaction is run to completion Limiting reactant
reactant that is not used up when a reaction is run to completion excess reactant
actual yeild of a product as a percentage percent yield
ratio of moles of one substance to another mole ratio
maximum amount of a product that can be given off theoretical yield
the amount of a pure substance that contains the same number of units mole
a chemical reaction that has the same number of atoms of each element on both sides of it; even if they are arranged differently on each side. balanced equations
the ingredients in a chemical reaction; the substances on the left side of the arrow in a chemical equation. reactant
the substances being made in chemical reaction; the substances on the right side of the arrow in a chemical equation. product
a number on the same line of text. In chemistry is the number to the left of a substance in a chemical equation. coefficient
the number of grams in one mole of substance. It is calculated by adding up the atomic masses of all elements in the compound. The units are always g/1 mol. molecular weight
compares the actual and theoretical yield (actual/theoretical)x100; gives you an idea about the efficiency of a reaction. percent yield
shows which elements are in the compound and the actual number of each Molecular Formula
formula using the simplest whole-number ratio Empirical Formula

Stoichiometry/Chemical Reactions Crossword

Type
Crossword
Description

A conversion factor derived from the coefficients of the quantities of substances involved in chemical reactions moleratio
A + B --------> AB synthesis
The area of chemistry involving the calculations of quantities of substances involved in chemical reactions stoichiometry
The mass of one mole of a substance molarmass
AB -----> A + B decomposition
The percent by mass of each element in a compound percent composition
AB + CD ------> AD + CB double replacement
6.02 x 10^23 avogadros number
The number in front of a balanced formula showing how much of that reactant or product is present coefficient
A + BC -----> AC + B single replacement
The ratio of the actual yield as compared to the theoretical yield expressed as a percentage percent yield
A representation of a chemical reaction using symbols and numbers to show the relationships between the reactants and products chemical equation
The amount of product that could form based on a balanced chemical equation theoretical yield
A compound containing carbon and hydrogen is burned in the presence of oxygen combustion
The amount of a substance mole
The amount of product that is actually formed when a reaction is carried out in the laboratory actual yield
The substance that runs out in a chemical reaction, thus controlling the amount of product(s) limiting reactant
The reactant that is leftover after a reaction comes to completion excess
The measurement of the mass of the substances in a chemical reaction gram
The chemicals present on the right side of a chemical reaction, that are only present after the the chemical reaction has begun products
The chemicals which are put into a chemical reaction and are on the left side of the reaction reactants

chemical reaction word search

Type
Word Search
Description

yield
temperature
symbols
subscript
reaction
reactant
product
physical
odor
new substance
nature
molecule
matter
mass
light produced
gas
formula
equation
element
compound
color change
coefficient
chemical reactiom
chemical

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 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

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 Reaction Word Search

Type
Word Search
Description

yeilds
product
decompostion reaction
coefficient
balanced equation
spectator ion
reversible reaction
net ionic equation
combustion reaction
chemical equation
aqueous solution
skeleton equation
reactant
combination reaction
catalyst
activity series

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

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 Vocab Word Search

Type
Word Search
Description

mass
matter
acid
unbalanced
balanced
chemical equation
atom
molecule
substance
conservation of mass
exothermic
endothermic
chemical reaction
product
reactant
chemical change
physical change