Question

select the correct number
the equation shows neutralization of an acid and a base to produce a salt and water
2hcl + na₂o = xnacl + h₂o
which value of x will balance the equation?

Explanation:

Step1: Count sodium atoms on left - hand side

On the left - hand side of the equation \(2HCl+Na_2O\), the number of sodium (\(Na\)) atoms is 2 from \(Na_2O\).

Step2: Balance sodium atoms on right - hand side

On the right - hand side, in \(xNaCl + H_2O\), for the sodium atoms to be balanced, since each \(NaCl\) has 1 sodium atom, \(x\) must be 2 so that the number of sodium atoms on the right is equal to the number of sodium atoms on the left.

Answer:

2