Question

About 89% of water by weight is oxygen​

Answer 1

Answer:

in our body??

how's that?

insufficient information

Answer 2

Answer:

yes

Explanation:

total atomic mass of water is 18gm

atomic mass of h=1

atomic mass of h2=2gm

atomic mass of o =16

percent of hydrogen weight=2 ×100÷18=11.1%

so oxygen weight 88.9% approx 89%