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Q1: Describe each of the following equations in terms of ( 1) number of particles and ( 2) number of moles:

a. 2Al(s) +3Cl2(g)à 2AlCl3(s)

b. 4HCl(g) + O2(g) à 2Cl2(g) + 2H2O(g)

Q2: Ammonia is produced by the reaction of hydrogen and nitrogen. N2(g) + 3H2(g) à 2NH3(g)

a. How many moles of H2 are needed to react with 1.0 mol of N2?

b. How many moles of N2 reacted if 0.60 mol of NH3 is produced?

c. How many moles of NH3 are produced when 1.4 mol of H2 reacts?

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