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.

quartz

explanation:

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6