Please help! i have 17 minutes left! the question is
2 Al + 6 HBr --> 3 H2 + 2 AlBr3

If 16.5g of aluminum reacts with 21.2g of HBr, how many grams of aluminum bromide will be produced?
I would also like to know the limiting and excess reactants for this question and
4 NH3 + 5 O2 --> 4 NO + 6 H2O

If 824g of NH3 reacts with 256g of O2, how many grams of nitrogen monoxide will be produced?

Achemical equilibrium between gaseous reactants and products is shown. n2(g) + 3h2(g) ⇌ 2nh3(g) how will the reaction be affected if the pressure on the system is increased? it will shift toward the reactant side as there is lower pressure on the reactant side. it will shift toward the product side as there is higher pressure on the product side. it will shift toward the reactant side as there are a greater number of moles of gas on the reactant side. it will shift toward the product side as there are a fewer number of moles of gas on the product side.