Question

Is 2Na + Cl --> 2 NaCl a balanced chemical equation? Is it obeying the law of conservation of matter?

Question 4 options:


Yes it is balanced. It has the same number of Na and Cl on both the reactant side and the product side.


No it is not balanced. It has more Cl on the product side than the reactant side.


No it is not balanced it has more Na on the reactant side than the product side.

Answer 1

Yes it is a balanced equation im taking the test right now 

Answer 2

Answer : No it is not balanced. it has more Cl on the product side than the reactant side.

Explanation :

The given chemical equation is,

`2Na+Cl\rightarrow 2NaCl`

But the net balanced chemical equation is,

`2Na+Cl_2\rightarrow 2NaCl`

Law of conservation of matter : In a chemical reaction, the mass of products must be equal to the mass of reactants.

• For Net balanced chemical equation:

The mass of reactant side, 2Na +
`Cl_2` = 2(23) + 2(35.5) = 117

The mass of product side, 2NaCl = 2(23 + 35.5) = 117

This means, the mass of product is equal to the mass of reactant. The mass remains conserved.

• For Given chemical equation:

The mass of reactant side, 2Na + Cl = 2(23) + 35.5 = 81.5

The mass of product side, 2NaCl = 2(23 + 35.5) = 117

This means, the mass of product is not equal to the mass of reactant. The mass is not conserved.