Question

Exer
1. Choose the most correct option.
A. A sample of pure water, whatever the
source always contains .......
........ by
mass of oxygen and 11.1 % by mass of
hydrogen.
a. 88.8 b. 18 c. 80 d. 16​

Answer 1

Answer:

option a is correct because 100-11.1= 88.9