<span>background information hope this helps</span>
The answer is •c•
Hope this is correct I tried
Explanation:
this is the one i found.....
Answer:
density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre. ... Density can also be expressed as kilograms per cubic metre (in metre-kilogram-second or SI units).
Explanation:
Chemical reactions that release energy will not occur without a source of energy. So the answer is release.
