Question

question 8 when balancing the equation 2h2 + o2 → 2h2o, what is the ratio of hydrogen to oxygen? a 2:1 b 2:1 c 4:1 d 1:2 e 1:1

Explanation:

Step1: Identify hydrogen and oxygen amounts

In the balanced equation $2H_2 + O_2
ightarrow2H_2O$, there are 4 hydrogen atoms (from $2H_2$) and 2 oxygen atoms (from $O_2$).

Step2: Calculate the ratio

The ratio of hydrogen to oxygen atoms is $\frac{4}{2}=2:1$.

Answer:

B. 2:1