Question

Density is a measure of what?
1) How much mass is in a substance
2) How much volume is in a substance
3) How much mass per unit of volume is in a substance

Answer 1

answer is

3) how much mass per unit of volume is in a substance

Answer 2

Answer: How much mass per unit of volume is in a substance

Explanation:

Density is defined as the mass contained per unit volume.

$Density=\frac{mass}{Volume}$

It is fixed for a given compound at a fixed temperature.

Example: Mass of bromine = 586 grams

Volume of bromine = 188 ml

Putting in the values we get:

$Density=\frac{586g}{188ml}=3.12g/ml$

Thus density of bromine will be 3.12 g/ml and it is mass per unit of volume in a substance.