Acids, bases and salts
Assessment
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Richard Fisher
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Chemistry
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9th - 10th Grade
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1K plays
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Hard
Student preview
10 questions
Show answers
1.
Multiple Choice
Complete the definition below:
Acids are....
hydrogen donors.
hydrogen acceptors.
proton donors.
proton acceptors.
2.
Multiple Choice
A substance has a pH value of 8. It is most likely to be what?
Strong acid
Weak acid
Strong base
Weak base
3.
Multiple Choice
Which indicator is colourless in acid and pink in alkali?
Litmus
Phenolphthalein
Universal Indicator
Methyl Orange
4.
Multiple Choice
Which is the correct sequence of steps to make a pure sample of a soluble salt?
Add excess acid to base, filter acid, evaporate half of solution, leave to crystallise, remove crystals and dry them with filter paper.
Mix two soluble solutions and filter off the insoluble salt. Dry the salt.
Add excess base to acid, filter excess base, evaporate half of solution, leave to crystallise, remove crystals and dry them with filter paper.
Add UI to acid and add base until UI turns green. Evaporate half of solution, leave to crystallise, remove crystals and dry them with filter paper.
5.
Multiple Choice
Complete this equation:
sulfuric acid + potassium hydroxide -->
potassium oxide + hydrogen
potassium chloride + water
potassium sulfate + hydrogen
potassium sulfate + water
6.
Multiple Choice
What acid is needed to make copper nitrate?
Hydrochloric
Nitric
Sulfuric
Phosphoric
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