Question

When 50g of Na is reacted with 22g of CI, 72g of product is yielded. NaCl is created

in this reaction. Explain why this is true?​

Answer 1

This is true because according to the law of conservation of mass in chemical equation the mass of reactants should be equal to the mass of products.

Step-by-step explanation:

• A chemical equation contains reactants and products.
• In this case, the reactants are sodium(Na) and chlorine gas(Cl), while the product is sodium chloride, NaCl.

• The equation for the reaction is;

2Na(s) + Cl₂(g) → 2NaCl(s)

• According to the law of conservation of mass, the mass of reactants should be equal to the mass of products in a chemical reactions.
• Therefore, Mass of Na + Mass of Cl = Mass of NaCl
• Sum of mass of Na and mass of Cl = 72 g, while
• The mass of NaCl = 72 g
• This explains why the sum of mass of Na and Cl is equal to the mass of NaCl.