Question

2.
Hydrogen and oxygen combine in
the ratio of 1:8 by mass to form
water. What mass of oxygen gas
would be required to react
completely 3 g of hydrogen
tec
im
at
gas?​

Answer 1

Explanation:

If for 1 g of HYDROGEN ,it is 8 g of OXYGEN.

then for 3 g of HYDROGEN, it is 8 × 3 = 24 g of OXYGEN.

Answer 2

Explanation:

1 g of hydrogen reacts with = 8 g of oxygen

1 g of hydrogen reacts with = 8 g of oxygen∴ 3 g of hydrogen reacts with = 8 × 3 = 24 g of oxygen

1 g of hydrogen reacts with = 8 g of oxygen∴ 3 g of hydrogen reacts with = 8 × 3 = 24 g of oxygenThus, 24 g of oxygen gas would be required to react completely with 3 g of hydrogen gas.

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