Answer:
Hydrogen
Explanation:
Hydrogen has only 1 proton and has an atomic mass of 1. It does not have neutrons. Helium and above have higher mass than Hydrogen.
Answer:
H+/PO-4^-2
Explanation:
hydrogen has dissolved completely
Answer:
it would be the second one thank me later
Explanation:
Breaking glass
Cutting hair
Folding paper
Chopping wood
Melting ice