Chapter 19.1, Problem 4PP

To determine

To write: the balance equation for the reaction of hydrogen and oxygen gas that forms water.

Explanation of Solution

Introduction:

In balance equation, reactant and product will have same number of coefficient. Chemical reactions can be explained in a precise way through chemical equations.

The given reaction is

${\text{H}}_{\text{2}}\left(\text{g}\right){\text{+O}}_{\text{2}}\left(\text{g}\right)\to \text{HCl}\left(\text{aq}\right)$

Here, in this reaction, $\text{HCl}$ is not balanced.

Balance $\text{HCl}$ on the product side by multiplying with 2,

${\text{H}}_{\text{2}}\left(\text{g}\right){\text{+O}}_{\text{2}}\left(\text{g}\right)\to 2\text{HCl}\left(\text{aq}\right)$

Therefore, the balance reaction is

${\text{H}}_{\text{2}}\left(\text{g}\right){\text{+O}}_{\text{2}}\left(\text{g}\right)\to 2\text{HCl}\left(\text{aq}\right)$

Conclusion:

Hence, the balanced equation is ${\text{H}}_{\text{2}}\left(\text{g}\right){\text{+O}}_{\text{2}}\left(\text{g}\right)\to 2\text{HCl}\left(\text{aq}\right)$ .