Chemistry

Question

1. True or false? Bases change litmus paper to blue.
2. True or false? Ammonia is an acid.
3. True or false? Properties of acids include being corrosive and having a sour taste.
4. True or false? Sulfuric acid is known as a strong acid.
5. True or false? Base solutions have a pH below 7.
6. True or false? The chemical formula for sulfuric acid is H2SO4.
7. True or false? Lemons contain citric acid.
8. True or false? An alkali is an acid.
9. True or false? An anion is an ion with more electrons than protons, giving it a negative charge.
10. True or false? Neutral solutions have a pH of 0.
11. True or false? Acids change litmus paper to red.
12. True or false? The word acid comes from the Latin word acidus (meaning sour).
13. True or false? The chemical formula for sodium hydroxide is NaH.
14. True or false? A cation is an ion with more protons than electrons, giving it a positive charge.
15. True or false? Acetic acid gives vinegar a sour taste and strong smell.
16. True or false? Acid solutions have a pH above 7.
17. True or false? Formic acid is found in bee venom.
18. True or false? Sodium hydroxide is known as a weak base.
19. True or false? DNA is an abbreviation for deoxyribonucleic acid.
20. True or false? Potassium hydroxide contains potassium, oxygen and helium.

1 Answer

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