Question: Please show working for 1 and 2 1. When heated, lithium reacts with nitrogen to form lithium nitride (Li3N): 6Li(s) + N2 (g) 2Li3N (s)

Please show working for 1 and 2

1. When heated, lithium reacts with nitrogen to form lithium nitride (Li3N):

6Li(s) + N2 (g) 2Li3N (s)

(a) What is the theoretical yield of Li3N in grams, when 8.9 g of Li are heated with 14.4 g N2

(b) If the actual yield of Li3N is 2.5 g, what is the % yield of the reaction?

2. Consider the reaction: MnO2 + 4HCl MnCl2 + Cl2 + 2H2O

(a) If 0.54 mole of MnO2 and 37.5g of HCl react, which reagent will be used up first?

(b) How many grams of Cl2 will be produced?

Classify the following reactions: [4]

a. P4 + O2 P4O10 ____________________________________

b. 2NaHCO3 Na2CO3 + CO2 + H2O________________________

c. Zn + 2HI H2 + ZnI2 ___________________________________

d. 3HNO2 HNO3 + H2O + 2NO ____________________________

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