Question

matter conservations matters quick check
cellular respiration transforms glucose and oxygen into carbon dioxide, water, and energy.
c₆h₁₂o₆ + 6o₂ → 6co₂ + ?h₂o + energy
based on the law of conservation of matter, what is the missing coefficient for water?
(1 point)
○ 6
○ 8
○ 4
○ 2

Explanation:

Step1: Count H atoms on left

In \( \ce{C6H12O6} \), H atoms: \( 12 \).

Step2: Let coefficient of \( \ce{H2O} \) be \( x \)

Each \( \ce{H2O} \) has 2 H, so total H on right: \( 2x \).

Step3: Apply conservation of matter

Set \( 2x = 12 \), solve \( x = \frac{12}{2} = 6 \).

Answer:

6 (corresponding to the option "6")