Question

quiz : balancing chemical reactions

ch₄(g) + 2o₂(g) → co₂(g) + 2h₂o(l)

in this reaction, carbon dioxide has a coefficient of ______.

○ 2
○ 4
○ 0
○ 1

Explanation:

Step1: Identify the coefficient

In a chemical equation like \(CH_4(g)+2O_2(g)\to CO_2(g)+2H_2O(l)\), the coefficient is the number in front of a chemical formula. For \(CO_2\), there is no number written explicitly. In such cases, the coefficient is assumed to be \(1\) (since \(1\times CO_2 = CO_2\)).

Answer:

1