# How does oxygen react with hydrogen?

##### 1 Answer
Feb 28, 2017

Well, first off we should write a stoichiometric equation.........

#### Explanation:

${H}_{2} \left(g\right) + \frac{1}{2} {O}_{2} \left(g\right) \rightarrow {H}_{2} O \left(l\right)$

Without other information, we would assume standard conditions of temperature and pressure. And thus the water product would be assumed to be a liquid.