2 H2 + 02 arrow 2820 there are four atoms of hydrogen h before the reaction how many atoms of hydrogen are present after the reaction 5482

Answer 1

The balanced equation for the reaction is:

2 H2 + O2 → 2 H2O

From the equation, we can see that for every 2 molecules of H2 reacting, we get 2 molecules of H2O.

Since there are 4 atoms of hydrogen (H) in 2 molecules of H2, we can say that there are 4 atoms of hydrogen before the reaction.

However, the given number "5482" seems unrelated to the problem. Therefore, without any additional information or context, we cannot say how many atoms of hydrogen are present after the reaction.