Understanding Chemistry

Mini-Quiz: Bases or Alkaline Materials

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Take this Mini-Quiz to check your understanding of the lesson material.

QUIZ

Self-check your understanding

Why should you be careful in tasting an alkaline material?
It may burn the skin off your tongueThat is correct. You are becoming a Chemistry Champion. It may make you sneezeSorry, not correct. Try another button. It may be slipperyGood try, but not right. Select another answer.
Which is a base?
CH3COOHSorry, not correct. Try another button. NaOHCorrect. You are smart. NaClOops! Wrong answer. Re-read the question and try again.
What can a gardener do if the soil is too acidic?
Add a base such as lime or chalk to reduce acidityThat is correct. You are becoming a Chemistry Champion. Add lemon juice to reduce the acidityGood try, but not right. Select another answer. Add salt (NaCl) until the soil becomes a baseOops! Wrong answer. Re-read the question and try again.

Pick an answer to see instant feedback. Re-read the lesson if you miss one.

If you got all three correct, you are on your way to becoming a Champion in Chemistry. If you had problems, you had better look over the material again.

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Resources and references

The following resources provide information on bases.

Websites

Weak Acids and Bases – from University of Waterloo, Canada

Experiments with Acids and Bases

Red Cabbage Indicator – substitute for Litmus paper

Chemistry Resources

Questions and comments

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Self-check your understanding

Resources and references

Websites

Questions and comments

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