Chemical Reactions and Conservation of Mass

Front

What are the 7 elements that are always diatomic?

Back

H2, N2, O2, F2, Cl2, Br2, I2

Front

What does a formula equation represent?

Back

The relationship between reactants and products in a chemical reaction.

Front

What is a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction.

Front

What is added during balancing equations?

Back

Coefficients

Front

What does the Law of Conservation of Mass state?

Back

Mass is not created nor destroyed.

Front

What is a reactant in a chemical reaction?

Back

A substance that undergoes change during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

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

Front

What is the purpose of balancing a chemical equation?

Back

To ensure that the number of atoms for each element is the same on both sides of the equation.

Front

What is the difference between an endothermic and exothermic reaction?

Back

Endothermic reactions absorb heat, while exothermic reactions release heat.

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed.