You are heating water in a beaker. How would you describe the change in energy and speed of the water molecules as the water gets hotter?A. The energy and speed both increase. B.The energy and speed do not change. C.The energy increases while the speed decreases. D.The energy stays the same while the speed increases.

The energy and speed both increase

Explanation:

Heating means energy is supplied to the system.  Energy is used to increase internal energy of the system by increasing  kinetic energy.  Therefore, by heating, energy of the system increases.

Heat also increases the energy of water molecules which increases rate of the frequency of collision that lead to increase in velocity.

Therefore, among the given options option A is correct.

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements