HELP PLZ HURRY Write the equilibrium constant expression for the following reactions.

1. N2(g) + 3H2(g) ⇆ 2NH3(g)

2. 2KClO3(s) ⇆ 2KCl(s) + 3O2(g)

3. 2NO(g) + Br2 (g )⇆ 2NOBr(g)

hope this !

explanation:

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2