Question 6 (5 points) How does pH of water change when carbon dioxide (CO2) is dissolved in it?
a
b
ОООО
Since CO2 makes acid in water, pH of water drops down from 7.
It is not possible to know.
Since CO2 makes acid in water, pH of water remains 7.
Since CO2 makes acid in water, fit of the new solution will become more than 7.
с
d