Unit 4 - In-Class Review Game

Front

What type of reaction is represented by the equation 2CuI → Cu + I₂?

Back

Decomposition

Front

What does the arrow in a chemical equation represent?

Back

Coefficient

Front

Is the equation 2C₂H₂ + 5O₂ → 4CO₂ + 2H₂O balanced?

Back

Yes

Front

Is the equation 4Fe + 3O₂ → 2Fe₂O₃ balanced?

Back

Yes

Front

What evidence indicates a chemical change when eggs get rotten?

Back

A new odor

Front

What is a chemical reaction?

Back

A process that leads to the transformation of one set of chemical substances to another.

Front

What is a reactant in a chemical equation?

Back

A substance that takes part in and undergoes change during a reaction.

Front

What is a product in a chemical equation?

Back

A substance that is formed as the result of a chemical reaction.

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a chemical formula to indicate how many molecules are involved.

Front

What is a subscript in a chemical formula?

Back

A number written below and to the right of a chemical symbol indicating the number of atoms of that element.