Question

in the balanced equation for the reaction between hydrogen and oxygen to form water, the coefficient of h₂ is

Explanation:

Step1: Write the reaction equation

The reaction between hydrogen ($H_2$) and oxygen ($O_2$) to form water ($H_2O$) is $H_2 + O_2
ightarrow H_2O$.

Step2: Balance the equation

To balance the oxygen atoms, we need 2 moles of $H_2O$. Then to balance the hydrogen atoms, we need 2 moles of $H_2$. The balanced equation is $2H_2+O_2 = 2H_2O$.

Answer:

2