PLEASE HELP ASAP Which of the following are most directly involved
in chemical bonding?
A. protons
B. neutrons
C. alpha particles
D. valence electrons

12. complete each of the following word equations for synthesis reactions. a. sodium + oxygen -> b. magnesium + fluorine -> 13. complete and balance the equations for the decomposition reactions. a. hgo -> [with the triangle heat symbol above the arrow] b. h2o(l) -> [with "electricity" written above the arrow]

What is the independent variable in this investigation? mass volume sample number substance density

37.0 °c = °f (human body normal temperature)