Apolyatomic ion that contains two hydrogen atoms is called
a. dihydrogen.
b. bihydrogen.
c. duohydrogen.
d. double-hydrogen.

When the earth was formed and cooled, why did nickel and iron end up in the center of the earth while basalt and granite ended up in the outer layers

C3h8o3 - glycerol major species present when dissolved in water

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)