Chemistry Semester 1 Review

Front

What units do you use to measure mass?

Back

Grams or kilograms are the units used to measure mass.

Front

What is a characteristic of a gas?

Back

A gas has fast-moving particles.

Front

What is the chemical formula for ammonium sulfate?

Back

(NH₄)₂SO₄ is the chemical formula for ammonium sulfate.

Front

What is the simplest ratio of ions represented in an ionic compound?

Back

The simplest ratio of ions in an ionic compound is called a formula unit.

Front

How do you calculate density?

Back

Density is calculated by dividing mass by volume (Density = Mass/Volume).

Front

What is the density of a substance that has a mass of 2.0 g and a volume of 0.50 mL?

Back

The density is 4.0 g/mL.

Front

What is the definition of an ionic compound?

Back

An ionic compound is formed when atoms transfer electrons, resulting in the attraction between positively and negatively charged ions.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is the principle of conservation of mass?

Back

The principle of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

Front

What is a chemical bond?

Back

A chemical bond is a lasting attraction between atoms that enables the formation of chemical compounds.