The rock has a mass of 7.9g and a volume of 3.0 cm3. What is the density of the rock?

Explanation:

The density of a substance can be found by using the formula

From the question we have

We have the final answer as

Hope this helps you

sorry idk the answer well to you i have a explaination

explanation: a formula which shows the arrangement of atoms in the molecule of a compound

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.