Can you list some chemical equations about water pollution? At least 5.

Sure! Here are five chemical equations related to water pollution:

1. Dissolved Oxygen Depletion:
2C6H12O6 + 17O2 --> 12CO2 + 12H2O
This equation represents the process of organic matter decomposition by bacteria in water, resulting in the consumption of dissolved oxygen and the production of carbon dioxide and water.

2. Eutrophication:
NO3- + 3H2O --> NO2- + 2OH- + H2O
This equation represents the reduction of nitrate ions to nitrite ions in water, which can contribute to the process of eutrophication, where excessive nutrients like nitrogen and phosphorus cause the overgrowth of aquatic plants and algae.

3. Acid Rain Formation:
SO2 + H2O + O2 --> H2SO4
This equation represents the reaction of sulfur dioxide (SO2) with water and oxygen in the atmosphere, forming sulfuric acid (H2SO4). Acid rain is caused by the deposition of sulfuric and nitric acids into water bodies.

4. Ammonia Toxicity:
NH3 + H2O ↔ NH4+ + OH-
This equation represents the equilibrium reaction between ammonia (NH3) and water (H2O). High concentrations of ammonia in water can be toxic to aquatic life, impacting their health and survival.

5. Heavy Metal Contamination:
Pb(NO3)2 + 2NaCl --> PbCl2 + 2NaNO3
This equation represents the reaction between lead nitrate (Pb(NO3)2) and sodium chloride (NaCl), resulting in the formation of lead chloride (PbCl2) and sodium nitrate (NaNO3). Lead and other heavy metals can contaminate water bodies, causing environmental and health concerns.

To find similar chemical equations related to water pollution, you can refer to scientific literature, research articles, or online databases focusing on environmental chemistry and water pollution.