Please help! 2NH3 + MgSO4 + 2H20 - Mg(OH)2 + (NH4)2S04

Using the chemical equation above, answer the following questions.

If I have 4.6 moles of MgSO4 and 5.4 moles of NH3 which one is the limiting reactant?
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How to calculate the mass of copper

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.

Which of the following describes the entropy change as a solution is made from a liquid and solid