Answer:

Explanation:
Given that,
The mass of the rock, m = 15 g
The volume of the rock, V = 10 cm³
We need to find the density of the rock. The density of an object is equal to the mass per unit volume such that,

So, the density of the rock is equal to
.
A firework exploding is a chemical change as soon as you light the fuse the combustion reacts with the gunpowder.
I hope this helps, good luck!!!!
Answer: The volume is 57.52 mL if the temperature if raised to 343K.
Explanation:
Given:
= 27 mL,
= 161 K
= ?,
= 343 K
According to Charles law, at constant pressure the volume of an ideal gas is directly proportional to temperature.
Formula used is as follows.

Thus, we can conclude that volume is 57.52 mL if the temperature if raised to 343K.