Question

question 13 of 28
in what kind of reaction do hydrogen gas (h₂) and oxygen gas (o₂) form water (h₂o)?
a. displacement
b. combination
c. decomposition
d. replacement

Explanation:

Hydrogen gas (H₂) and oxygen gas (O₂) combine to form a single product, water (H₂O). This fits the definition of a combination reaction, where two or more substances react to form one new substance.

Answer:

B. Combination