Matter Unit Exam Review

Front

What is density?

Back

Density is the mass of a substance divided by its volume, typically expressed in grams per milliliter (g/mL) or kilograms per cubic meter (kg/m³).

Front

How do you calculate mass using density and volume?

Back

Mass = Density × Volume.

Front

What happens to the pressure of a gas when its temperature increases at constant volume?

Back

The pressure of the gas increases.

Front

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

Back

The number of atoms is determined by the coefficients and subscripts in the chemical formula.

Front

What is the Law of Conservation of Mass?

Back

The Law of Conservation of Mass states that mass is never created or destroyed in a chemical reaction.

Front

If you start with 20g of reactants, how much product will you have?

Back

You will have a total of 20g of products.

Front

What is the relationship between temperature and pressure in gases?

Back

As temperature increases, pressure increases if volume is constant.

Front

What is the unit of density?

Back

The unit of density is typically grams per milliliter (g/mL) or kilograms per cubic meter (kg/m³).

Front

How many atoms are in one molecule of ammonia (NH₃)?

Back

There are 4 hydrogen atoms and 1 nitrogen atom in one molecule of ammonia.

Front

What is the formula for calculating volume?

Back

Volume = Mass / Density.