Aluminum to hydrogen gas ratio is 2 : 3 by looking at the coefficients of aluminum on the reactant side and hydrogen gas on the product side.
So from 2.0 mol of Al, 3.0 mol of H2 would form.
1.7 liters of water will be produced.
Explanation:
The balanced chemical reaction is:
2H2+ 02⇒ 2H20
Considering the reaction to be at STP (P = 1atm, V= 22.4 L, T = 273.15 K)
the formula used is:
PV = nRT
Where P, R and T remains same only volume and number of moles are different so,
=
observing the balanced reaction:
mole ratio is 2:2 i.e 1:1
so volume ratio will also be same
so 1.7 litres of water will be produced.
From the reaction it is seen that
1 mole hydrogen react with oxygen to give 1 mole of water at STP.
so, it is found that 1.7 liters of hydrogen gives 1.7 liters of water
Answer: 1.color change
2.temperature change
3. precipitate formation
4.gas formation
Explanation: There is no pic