Question

a gas cylinder is consisted of 25ml hydrogen and 40g of oxygen. Calculate the amount of oxygen that will be left after the direct combination of oxygen and hydrogen to form water​

Answer 1

Answer:

as 1 ml= 1 gram.

so ;

Explanation:

25 ml hydrogen and 25 ml oxygen will make water and the amount of hydrogen left will be:

25-40=15

so 15 g of hydrogen is left