List the number of atoms and elements shown below. a. 2 CH4
b. 10 Mg(OH)2
c. 5 Al2(SO4)3
d. 3 H2O

; lc

Heat is involved in chemical change in two ways; chemical changes either result in heat being added to or removed from an object, and chemical changes require a certain amount of heat before they can take place.

Any vitamins or supplements can be obtained without prescription and are widely used as alternative from western medications. most supplements are not valued by the fda or any other drug and food agencies.