Respuesta :

christabel9256

Answer:

4

Explanation:

The reaction between hydrogen and oxygen gives water (H2O)

2H,+O, -> 2H2O

Oxygen is a gas O, = O2

Balancing both sides

let , be x

2x = 4

[tex]x = \frac{4}{2} [/tex]

x= 2

Therefore, 2H2 = 4 hydrogen