Environmental Chemistry

Alberta Topic C: Environmental Chemistry. Covers water and soil quality.

9 questions, free, marked as you go with a worked explanation on every one.

What this covers

The questions

  1. The pH scale measures how acidic or basic a substance is. A pH of 7 is considered:
  2. On the pH scale, which value represents the MOST acidic substance?
  3. A substance that dissolves in water to increase the concentration of contaminants is a source of:
  4. Testing water quality often includes measuring dissolved oxygen because it indicates:
  5. A lake's pH falls from 6 to 5. How much more acidic has the water become?
  6. Mercury is found in much higher concentrations in large predatory fish than in the small fish they eat. What explains this?
  7. A water sample contains 6 mg of a contaminant dissolved in 2 L of water. What is the concentration?
  8. Which of these are sources of water pollution? Select all that apply.
  9. Use the table of pH values. Which substance is the strongest base?

Answer these free