Which two (2) of the following reaction types is exothermic? CaCl2(s) + 2H20 --> Ca(OH)2 (aq) + 2HCI + heat Jb Melting Ice Oc N2 + O2 + energy --> 2NO Do H2 + 12 --> 2H1 + energy​

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Which is an example of an exothermic process?

Macy always thought there were only a few hair colors blonde brown and black however when she actually began looking around she saw varying shades of these hair color what is a possible reason for so many different hair colors