Chapter 16 Review

Front

What does the Law of Conservation of Mass state?

Back

The Law of Conservation of Mass states that in a closed system, the mass of the reactants must equal the mass of the products; atoms can be rearranged but not created or destroyed.

Front

What is energy in the context of chemical reactions?

Back

Energy is the capacity to do work or produce heat, and every chemical reaction involves a change in energy, either absorbed or released.

Front

Define matter.

Back

Matter is anything that has mass and takes up space.

Front

What is a chemical equation?

Back

A chemical equation is a shorter, easier way to represent a chemical reaction using symbols instead of words.

Front

What happens to mass during a chemical reaction according to the Law of Conservation of Mass?

Back

The total mass of the reactants equals the total mass of the products.

Front

What is the significance of gas production in a chemical reaction?

Back

Gas production can lead to a loss of mass if the gas escapes into the environment, affecting the mass measurements of reactants and products.

Front

What is a reactant?

Back

A reactant is a substance that undergoes a chemical change in a reaction.

Front

What is a product in a chemical reaction?

Back

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

Front

Explain the term 'endothermic reaction'.

Back

An endothermic reaction is a type of chemical reaction that absorbs energy from its surroundings, usually in the form of heat.

Front

Explain the term 'exothermic reaction'.

Back

An exothermic reaction is a type of chemical reaction that releases energy to its surroundings, usually in the form of heat.