Question

Question 9 of 50

2 Point
When hydrogen is burned in the presence of oxygen it will form water, as
per the equation: 2H2 + O2 -> 2H20. Which types of reactions does this
fall under?
I. synthesis
II. decomposition
III. single replacement
IV. double replacement
V. combustion
O A. I and V

Answer 1

the answer is combustion

Answer 2

V. Combustion

Step-by-step explanation:

Combustion is a reaction where a substance is burned - in this case, hydrogen is burned.