What effect does the ph of smoke have on water in the atmosphere?

The effect is the acid rain.

Explanation:

The effect that the pH of smoke has on water in the atmosphere is the generation of acid rain. Acid rain is the precipitation of particles that have been acidified as a result of air pollution. Acidity is measured with the pH scale and ranges from 0 to 14, with 0 being the most acidic and 14 being the most alkaline or basic. A pH of 7 corresponds to a neutral solution.

In places without contamination, the rain has a pH value between 5 and 6. When the values are lower than that parameter, the rain is considered acidic. These pH values are due to the fact that some gases (especially nitrogen oxides and sulfur dioxide) react to contact with air humidity and transform into sulfuric acid, nitric acid and hydrochloric acid. These acids are located in the clouds and the rain produced by these clouds is acid rain.