Question

what is the H2O common value​

Answer 1

Answer:

H2O is the symbol for Water.Atomicity of H is 2 and O is 1 here.

Explanation:

above is the answer

Answer 2

Answer:

Hey mate here is your answer!

Explanation:

H2O stands for water, which mean oxygen+hydrogen. H stands for 2 and O stands for 1.