Physical Science Final Exam Review Part 1

Front

What is a neutralization reaction?

Back

A neutralization reaction is a chemical reaction between an acid and a base that produces water and a salt.

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation, indicating that mass is conserved.

Front

What is the difference between physical and chemical changes?

Back

Physical changes alter the form of a substance without changing its chemical composition, while chemical changes result in the formation of new substances.

Front

What is the definition of mass?

Back

Mass is a measure of the amount of matter in an object, typically measured in kilograms.

Front

What is the definition of weight?

Back

Weight is the force exerted by gravity on an object, calculated as mass times the acceleration due to gravity (W = mg).

Front

What happens to the mass of an object in outer space?

Back

The mass of an object remains constant regardless of its location, including outer space.

Front

What happens to the weight of an object in outer space?

Back

The weight of an object decreases in outer space due to the reduced gravitational pull.

Front

What is an example of a physical property?

Back

An example of a physical property is the ability of a substance to change shape, such as folding a piece of paper.

Front

What is an example of a chemical property?

Back

An example of a chemical property is the ability of a substance to react with oxygen, such as burning.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass cannot be created or destroyed in a chemical reaction.