Question

What is the value of X in the following balanced equation?
 YH₂+O₂ → XH2O

• A. 4
• B. 3
• C. 2
• D. 1

Answer 1

The Correct Option is C

The given unbalanced chemical equation is: \[ YH_2 + O_2 \rightarrow XH_2O \] To balance this equation, let's first balance the hydrogen atoms. The left side has 1 hydrogen atom from \( YH_2 \), and the right side has 2 hydrogen atoms in \( H_2O \). Therefore, we need 2 \( YH_2 \) molecules on the left side to balance the hydrogen atoms: \[ 2YH_2 + O_2 \rightarrow XH_2O \] Next, balance the oxygen atoms. On the left side, we have 2 oxygen atoms in \( O_2 \), so we need 2 \( H_2O \) molecules on the right side to balance the oxygen atoms: \[ 2YH_2 + O_2 \rightarrow 2H_2O \]

The correct option is (C): \(2\)