PMT 108 Principles of Water Test 2 Exam |Complete Q’s and A’s

PMT 108 Principles of Water Test 2
Exam |Complete Q’s and A’s
What are the three states of matter? - -- Solid
- Liquid
- Gas

- What are the types of matter? - -- Elements
- Compounds
- Mixtures

- Which ion is: An atom or molecule that has gained an electron; has one
excess negative charge (-) - -Anion

- Which ion is: An atom or molecule that has lost an electron; has one
excess positive charge (+) - -Cation

- What term describes: A substance that is dissolved - -Solute

- What term describes: A substance that dissolves the solute - -Solvent

- What term describes: Formation of a solid in a solution - -Percipitation

- What value(s) on the pH scale represents a: neutral solution? - -7

- What value(s) on the pH scale represents an: acidic solution - -0-6.9

- What are the purposes of water quality analysis? - -- Avoid degradation of
personnel's performance
- Prevent damage to materials used in the transportation and storage of
water
- Obtain water suitable to sustain personnel's health

- What are physical characteristics of water quality? - -- Color
- Odor and taste
- Turbidity
- Temperature

- Which Chemical compound/ Element: Is a toxic metal that affects the
nervous system? - -Lead

- Which Chemical compound/ Element: Is an agriculture insecticide which
contaminates water source by application, runoff, or spills; can cause severe