U7_L3 Properties of Water and pH Quiz

Question 1 of 5

1. Question

20 point(s)

What is the chemical formula for water?

H2O

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CO2

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O2

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Question 2 of 5

2. Question

20 point(s)

Which method is NOT used for water purification?

Boiling

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Filtration

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Evaporation

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Question 3 of 5

3. Question

20 point(s)

What does pH stand for?

Potential Hydrogen

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Power of Hydrogen

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Percentage of Hydrogen

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Question 4 of 5

4. Question

20 point(s)

Select the correct statements about acids and alkalis.

Acids have a pH below 7.

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Alkalis have a pH above 7.

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Acids taste bitter.

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Alkalis turn red litmus paper blue.

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Question 5 of 5

5. Question

20 point(s)

What is the pH range of mild alkalis?

pH 5.5 – 10.0

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pH 7.0 – 14.0

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pH 0.0 – 4.5

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