Physical Science Chemistry Review

Front

What is a dependent variable in an experiment?

Back

The dependent variable is the outcome or response that is measured in an experiment, which is affected by changes in the independent variable.

Front

What is the process of changing a solid to a liquid called?

Back

Melting.

Front

What are the three main states of matter?

Back

Solid, Liquid, Gas.

Front

What is the chemical formula for calculating the number of atoms in a compound?

Back

Count the subscripts in the chemical formula; for example, in Al₂(SO₄)₃, there are 12 Oxygen atoms.

Front

How many different elements are present in the amino acid C₅H₁₁NO₂S?

Back

5 different elements: Carbon (C), Hydrogen (H), Nitrogen (N), Oxygen (O), and Sulfur (S).

Front

What is the process of a liquid turning into a gas called?

Back

Vaporization.

Front

What is the process of a gas turning into a liquid called?

Back

Condensation.

Front

What is the term for the amount of space an object occupies?

Back

Volume.

Front

What is the term for the mass per unit volume of a substance?

Back

Density.

Front

What is the law that states that mass cannot be created or destroyed in a chemical reaction?

Back

Law of Conservation of Mass.