Two elements that become bonded together after a chemical reaction are known as a
a. compound.
b. ion.
c. mixture.
d. nobel gas.

If you add 10ml of hot water to 10ml of cold water and the change in tempature 8°c calculate how much energy is gained by the cold water

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

When a septic tank backs up a goes in to clean it out