Chemical Changes
Symbols
Chemical Equations
Balanced Equations
Classifying Reactions
100

The father of modern chemistry.  

Who is Antoine Lavoisier?

100

The symbol for produces or yields in a chemical equation.

What is an arrow?

100

A marking representing how many atoms of the same element is present in a chemical reaction.

What is a subscript?

100

Zn + HCl produces ZnCl + H as a balanced equation.

What is 2Zn + 2HCl produces 2ZnCl + H2?

100

AB yields A + B

What is a decomposition reaction?

200

According to the Law of Conservation of Mass the mass of the reactants must be

What is "equal to the mass of the products"?

200

The symbol aq and represents one chemical dissolved in water and also known as

What is aqueous?

200

Substances that are found to the left of the arrow in a chemical equation.

What are reactants?

200

Water yields Hydrogen gas and Oxygen gas when catalyzed by electricity.

What is electrically catalyzed 2H20 produces 2H2 + O2?

200

AB + CD produces AC + BD

What is a Double Displacement reaction?

300

A substance used to slow a chemical reaction.

What is an inhibitor?

300

Letter used to represent a solid in a chemical equation.

What is s?

300

The substances found to the right of the arrow in a chemical equation.

What are products?

300

Fe + H2O produces Fe3O4 + H2 balanced.

What is 3Fe + 4H2O yields Fe3O4 + 4H2?

300

A + B produces AB

What is a synthesis reaction?

400

A chemical reaction that absorbs heat from the environment.  Icebreakers gum is an example.

What is endothermic reactions?

400

Item written over the arrow in a chemical equation.

What is a catalyst?

400

A number used to balance a chemical equation by representing the number of units present.

What is a coefficient?

400

C3H8 + O2 produces CO2 + H2O balanced.

What is C3H8 + 5O2 yields 3CO2 + 4H20?

400

Zinc plus Hydrochloric Acid produces Zinc Chloride plus Hydrogen gas.

What is a single displacement reaction?

500

A chemical reaction that releases energy with a net gain of energy in the system.

What is an exogonic reaction?

500

State of matter NOT represented by a letter in a chemical equation.

What is plasma?

500

Law of Conservation of Mass was determined by the Father of Modern Chemistry by experimenting with this compound.

What is Mercury(II) Oxide?

500

Magnesium reacts with Oxygen gas to produce Magnesium Monoxide.  Balance this equation.

What is 2Mg + O2 yields 2Mg0?

500

Water vapor, Carbon Dioxide, and Carbon Monoxide are products in this type of reaction.

What is a combustion reaction?