Type
Word Search
Description

balance
balanced equation
calculate
calculating
constant
converted
energy
equation
law of conservation
masses
mole
neither created
nor destroyed
one form to another
process
products
ratio
reactants
reactions
relative
set up
stoichiometry

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

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

Stoichiometry Word Search

Type
Word Search
Description

Chemistry
Conversion
Chemical Reaction
Balanced Equation
Liters
Grams
Formula Unit
Molecules
Atoms
Product
Reactant
Avogadro's Principle
Molar Mass
Mole
Avogadro's Number

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

Stoichiometry Word Search

Type
Word Search
Description

percent yield
actual yield
theoretical yield
excess reactant
limiting reactant
mole ratio
stoichiometry
reactant
chemical reaction
molar mass

chemical equations and reactions Crossword

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 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

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

Compoundable Meats (stoichiometry) Word Search

Type
Word Search
Description

Products
Reactants
Molecule
Periodic Table
Atomic Mass
ABSOLUTE ZERO
COEFFICIENTS
THEORETICAL YIELD
CHEMISTRY
MOLE
MOLAR VOLUME
MOLAR MASS
EMPIRICAL NUMBER
AVOGADROS NUMBER
AVOGADROS HYPOTHESIS
LIMITING REAGENT
MOLE RATIO
STOICHIOMETRY

Gas Laws Crossword

Type
Crossword
Description

Ability to do work Energy
Stored energy Ex: a loaded slingshot Potential energy
Energy in motion Kinetic energy
Condition in which kelvin is used Absolute zero
Pressure and volume are inversely proportional if moles and temperature are constant Boyles law
Energy is not created nor destroyed Law of conservation
Form of energy flowing from high to low Heat
Average kinetic energy of particles Temperature
Temperature and volume are directly proportional Charles law
Adsorbing heat Endothermic
Pressure of a fixed mass gas varies directly with the kelvin temperature when volume remains constant Gay Lussac law
Unit of energy Joule
Amount of heat needed to raise temperature of one gram of a substance by one degree celsius Specific heat
PV=nRT Ideal gas constant
characterized by three state variables: P, V, T Ideal gas law
used for measuring gas density and volume STP
quantity associated with a thermodynamic system Enthalpy
volume occupied by one mole of a gas, liquid, or solid Molar volume
a reaction that releases heat Exothermic
a device used to measure heat changes Calorimeter