1st - Counting Atoms, Classifying and Balancing Equations

Front

What is a coefficient?

Back

The large number to the left of a formula.

Front

What is the right part of a chemical equation called?

Back

Products

Front

What type of reaction is represented by the equation: XY --> X + Y?

Back

Decomposition

Front

Balance this reaction: ____ CH4 + ____ O2 --> ____ CO2 + ____ H2O

Back

1,2,1,2

Front

Which of the following is an example of a combustion reaction? 2C5H10 + 15O2 --> 10CO2 + 10H2O

Back

2C5H10 + 15O2 --> 10CO2 + 10H2O

Front

What are reactants in a chemical equation?

Back

Substances that undergo a chemical change.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is a synthesis reaction?

Back

A reaction where two or more substances combine to form a new compound.

Front

What is a decomposition reaction?

Back

A reaction where a single compound breaks down into two or more simpler products.

Front

What is a combustion reaction?

Back

A reaction that involves the burning of a substance in the presence of oxygen.