Identifying Combination Reactions
Which of the following is an example of a combination reaction?
A
Mercury oxide decomposes into mercury and oxygen when heated.
B
Hydrogen reacts with oxygen to produce water.
C
Potassium reacts with water to form potassium hydroxide and hydrogen gas.
D
Sodium bicarbonate reacts with acetic acid to produce sodium acetate and carbonic acid.
E
Methane reacts with oxygen to produce carbon dioxide and water.