Question

multiple - choice question
2h₂o --> o₂ + 2h₂
this is a __________ reaction.
synthesis
decomposition
rewatch

Explanation:

In a decomposition reaction, a single compound breaks down into two or more simpler substances. Here, \(2H_2O\) (a single compound) is breaking down into \(O_2\) and \(2H_2\) (two simpler substances). In a synthesis reaction, two or more substances combine to form a single compound, which is not the case here.

Answer:

decomposition