Unit 9 - Strength Of Acids And Bases
In chemistry, acids and bases are two types of corrosive substances. The acidity or basicity of a substance is measured with the pH scale. What can you tell us about the strengths of these two corrosives?
- 1.The strength of an acid or base depends on ______.
- A.
How many hydrogen atoms are contained in each molecule of the acid or base.
- B.
How quickly they form salts when they react with metals
- C.
How completely it ionizes in water
- D.
How many hydroxide groups are on each molecule of the acid or base
- 2.Which two terms refer to the amount of acid or base dissolved in solution?
- A.
Dilute and concentrated
- B.
Strong and dilute
- C.
Weak and concentrated
- D.
Strong and weak
- 3.The ______ of solution is a measure of the concentration of hydronium ions in it.
- A.
Concentration
- B.
Indicator
- C.
PH
- D.
Strength
- 4.Which of the following has the highest pH?
- A.
Pure water
- B.
Vinegar
- C.
Ammonia
- D.
Vitamin C
- 5.______ are solution containing ions that react with acids or bases to minimize their effects.
- A.
Buffers
- B.
Enzymes
- C.
Indicators
- D.
Hydroxides
- 6.In chemical equations describing ionization, what do double arrows pointing in opposite directions indicate?
- A.
The reaction rate is doubled.
- B.
There is twice as much product as reactant.
- C.
The reactant is a strong acid.
- D.
The ionization reaction is incomplete.
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