For each of these equations, determine the change in the number of moles of gas, δngas.?
a.) (nh4)2 co3(s) = 2nh3(g) + co2(g) + h2o(g)
b.) h2(g) + cl2(g) = 2hcl(g)
c.) 2h2(g) + o2(g) = 2h2o(l)
d.) 2na(s) + cl2(g) = 2nacl(s)

A.) reactants - 0 moles of gas, products - 4 moles of gas, Δn = 4 moles
B.) reactants - 2 moles of gas, products - 2 moles of gas, Δn = 0 moles
C.) reactants - 3 moles of gas, products - 0 moles of gas, Δn = -3 moles
D.) reactants - 1 mole of gas, products - 0 moles of gas, Δn = -1 moles

Answeramino acids;