Question

In the following reactions, the total number of oxygen atoms in X and Y is _______
Na₂O + H₂O → 2X
Cl₂O₇ + H₂O → 2Y

Hint:

In reactions involving oxides and water, carefully balance the equations and count the atoms to ensure accuracy in stoichiometry

Answer 1

Correct Answer: 5

The reactions of sodium oxide and dichlorine heptoxide with water are as follows:

\[ Na_2O + H_2O \rightarrow 2NaOH \] 

\[ Cl_2O_7 + H_2O \rightarrow 2HClO_4 \]

Adding the coefficients from both equations: 1 +4=5