URGENT 100 POINTS PLEASE HELP 2NH₃ + MgSO₄ + 2H₂O ---> Mg(OH)₂ + (NH₄)₂SO₄

1 - If I have 3.7 moles of MgSO₄ and 4.8 moles oh NH₃, which one is the limiting reactant?
2- What is the greatest amount of (NH₄)₂SO₄ that can be made with 3.7 moles of MgSO₄ and 4.8 moles of NH₃?
3- How many moles of the excess reactant is left over after the reaction has been completed?
PLEASE SHOW WORK

Triangle

Explanation:

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a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.