(i) Balance this equation M3PO4 + Ca (OH)2 ----> Ca 3 (PO4)2 + H2o

ii) For this reaction:

N2 M4 (g) ---> NH3 (g) + N2 (g)

Calculate how many moles of NH3 form when

a) 5.3 mol of N2H4 completely react

b) 14.7 kg of N2 H4 completely react

iii) Sulfuric acid dissolves aluminum metal according to the following reaction:

Al (s) + H2SO4 (aq) --------> Al2 (SO4)3 (aq) + H2 (g)

suppose you wanted to dissolve an aluminum block with mass 15.2 g

a) What minimum mas H2SO4 (in g) would you need?

b) What mass of hydrogen gas (in g) would be produced by the complete reaction of the aluminum block?


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