Question

modeling effects of pollutants on water quality
many freshwater organisms can live in water with a ph of between 6.5 and 9.0.
ph = 6.65
geraldo wants to model the effect of acids on the ph of water for a group of students.
which pollutant should geraldo add to the water?
baking soda
pesticide
soap

Explanation:

Baking soda is a base (raises pH), soap is typically alkaline, and pesticides are not primarily acidic pollutants used to model acid effects on water pH. Geraldo would need an acidic substance (e.g., sulfuric acid, vinegar) instead of the options provided.

Answer:

None of the listed options (baking soda, pesticide, soap) are acids suitable for this model.