Answer:
B
Explanation:
its an acidic oxide, it disolves in water to form carbonic acid which is an acid
The answer is c electrostatic repulsion between nuclei
Rotting vegetables is a chemical change I think.
Answer:
A control group is someone who takes control over something so a tyrant or a dictator.
Explanation:
If this isnt what your looking for let me know, there wasnt alot of context.