Question

In water,hydrogen and oxygen are present in which ratio

Answer 1

The formula of water is$H _2O$so they are present In the ratio 8:1....

Oxygen -1

Hyrogen-8

And water forms when atoms of hydrogen and oxygen are combined in the ratio 8:1.

Answer 2

Answer :-

As we know that the formula for water is $H_2O$

then ratio in respect of atoms = 2:1
2 atoms of Hydrogen and 1 atom of Oxygen

Ratio in respect of mass
As mass of Hydrogen = 1 amu
mass of Oxygen = 16 amu

ratio of mass = 2 : 16. ( as no. of hydrogen atoms = 2 and oxygen atom = 1)

final ratio = 1:8


hope it helps