quizNfacts | Quizzes

1. What is the term for a substance that donates protons in a reaction? (Chemistry)

Reactant

Catalyst

Base

Acid

2. What is the name of the element with the symbol "Fe"? (Chemistry)

Fermium

Fluorine

Iron

Iridium

3. What is the freezing point of water in Fahrenheit? (Chemistry, Science)

50°F

0°F

32°F

100°F

4. What is the first element on the periodic table? (Chemistry)

Oxygen

Carbon

Hydrogen

Helium

5. What is the hardest natural substance on Earth? (Chemistry)

Graphite

Quartz

Diamond

Topaz

6. What is the primary use of helium gas? (Chemistry)

Fuel production

Cooking

Inflating balloons

Explosives

7. What is the term for a chemical reaction that absorbs heat? (Chemistry)

Endothermic

Catalytic

Neutralization

Exothermic

8. What is the process of solid changing directly to gas called? (Chemistry)

Sublimation

Deposition

Condensation

Vaporization

9. What type of reaction releases energy, usually in the form of heat? (Chemistry)

Decomposition