Respuesta :

Answer:

The answer to your question is 42.9 g of Ca

Explanation:

Data

mass of Ca = ?

mass of N₂ = 10 g

Balanced  chemical reaction

                 3Ca  +  N₂  ⇒   Ca₃N₂

Process

1.- Calculate the molar mass of the reactants.

Ca = 3(40) = 120 g

N₂ = 2(14) = 28 g

2.- Calculate the mass of Calcium using proportions and the molar mass of the reactants.

                    120 g of Ca ---------------- 28 g of N₂

                       x               ---------------- 10 g of N₂

                               x = (10 x 120) / 28

                               x = 1200 / 28

                               x = 42.9 g of Ca

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