what-is-the-change-in-the-number-of-gas-moles-n-for-each-of-the-following-reacti

Question

What is the change in the number of gas moles (Δn) for each of the following reactions?

I) H₂_(g) + Br₂_(l) → 2HBr_(g)

II) (NH₄)₂CO₃_(s) → 2NH₃_(g) + CO₂_(g) + H₂O_(g)

III) 3H₂_(g) + N₂_(g) → 2NH₃_(g)

IV) Mg_(s) + I₂_(s) → MgI₂_(s)

Accepted Answer

I) Δn = +1; II) Δn = +4; III) Δn = -2; IV) Δn = 0

Answer

I) Δn = +1; II) Δn = +4; III) Δn = +2; III) Δn = +1

Answer

I) Δn = -1; II) Δn = -4; III) Δn = +2; IV) Δn = 0

Answer

I) Δn = +2; II) Δn = +4; III) Δn = +1; IV) Δn = +1