what is the amount of heat absorbed when the temperature of 75 grams of water increases from 20 oC to 35 oC

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)

Chemical energy is a form of a. kinetic energy only. b. both potential and kinetic energy. c. neither potential nor kinetic energy. d. potential energy only. reset