Chapter 6 - Chapter Test (10 Questions)
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Chapter 6, Reference: Prentice Hall, publication 2004.
- 1.What is an indicator used for in science?
- A.
Find the "pH" of a solution (tells how much "potential of Hydrogen" is in it)
- B.
Find the "concentration" of a solution (amount of one material dissolved in another)
- C.
Test for "conductivity" (if it allows electricity to flow)
- D.
Find out if a solution is "saturated" (full to the most amount of solute can hold)
- 2.What type of solution has the pH of 9?
- A.
Acidic
- B.
Neutral
- C.
Basic
- D.
Saturatede
- 3.What is a "characteristic property" of acids?
- A.
Acids turn red litmus paper "blue"
- B.
Acids taste bitter
- C.
Acids turn blue litmus paper "red"
- D.
Acids "do not" react with metals
- 4.What is a liquid mixture in which particles "can be seen" and "easily separated by filteration"?
- A.
Solution
- B.
Suspension
- C.
Solvent
- D.
Colloid
- 5.When 40 mL of alcohol form a solution with 30 mL of water***"Think how much water and how much alcohol. Then think which is the solvent (large amount) or solute (smallest amount).
- A.
Alcohol is the solvent
- B.
Water is the solvent
- C.
Both alcohol and water are solvents
- D.
Neither alcohol nor water is a solvent
- 6.How can a scientist tell whether a water solution contains salt of sugar?
- A.
By tasting the solution
- B.
By smelling the solution
- C.
By testing the electrical conductivity of the solution
- D.
By filtering the solution
- 7.When a compound dissolves in water
- A.
It always breaks up into ions (electrically charged atoms)
- B.
Its always conducts electricity
- C.
Its particles surround individual warter molecules
- D.
Each of its particles is surrounded by water molecules
- 8.Weak tea is an example of a
- A.
Dilute solution
- B.
Concentrated solution
- C.
Saturated solution
- D.
Supersaturated solution
- 9.What do bases form in water?
- A.
Hydroxide ions (H0-)?
- B.
Oxide ions
- C.
Hydrogen ions (H+)
- D.
Gas
- 10.What is the pH of normal rainfall which is slightly acidic?
- A.
1
- B.
Less than 3
- C.
Between 5 and 7
- D.
Between 10 and 12
- 11.What is the reaction between an acid and a base?
- A.
Neutralization
- B.
Action-reaction
- C.
Basicity
- D.
Chemical reaction
- 12.Which is an example of a chemical change?
- A.
Grating cheese
- B.
Ripping paper
- C.
Digestion
- D.
Sawing a piece of wood apart
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