Savvas Physical Science 1st Sem Review Ch's 1-8

Front

What happens to an atom during ionic bonding?

Back

It gains or loses electrons.

Front

What are three common states of matter?

Back

Solid, Liquid, Gas.

Front

Which of the following best describes an endothermic reaction?

Back

A reaction that absorbs energy from the surroundings.

Front

Which ion concentration increases when an acid is added to water?

Back

H3O+.

Front

What is solubility?

Back

The ability of a substance to dissolve in a solvent.

Front

What is the definition of an atom?

Back

The basic unit of a chemical element.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance, while a chemical change alters its composition.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is an example of a chemical reaction?

Back

Rusting of iron.

Front

What is the pH scale used for?

Back

To measure the acidity or basicity of a solution.