Chemical reactions that release energy will not occur without a source of energy. So the answer is release.
Answer: petroleum
because it is a fossil fuel like coal, and natural gas.
Compressions are regions of high pressure due to particles being close together
rarefactions are regions of low pressure due to particles being spread further apart
Longitudinal waves are often demonstrated by pushing and pulling a stretched slinky spring
Answer:
atomic particles
The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).
Answer:
Explanation:
Ionic compounds are formed by combining a metal and a nonmetal.
Molecular compounds are formed by two or more nonmetals.
