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Chemical Bonding Quiz #3 (Chemical Reactions) - Test
Prispevano od: Collins
  • 1. Chemical reactions take place when...
A) two of the answers are correct
B) small molecules come together
C) none of the answers are correct
D) large molecules are broken apart
  • 2. In an exothermic reaction...
A) energy is given off
B) no answer is c
C) energy is needed
D) two of the answers are correct
  • 3. In an endothermic reaction...
A) none of the answers are correct
B) two of the answers are correct
C) energy is given off
D) energy is needed
  • 4. Which of the following is not an example of a chemical reaction?
A) baking a cake
B) a car rusting
C) cutting a piece of wood with a saw
D) growing of hair
  • 5. Oxidation is...
A) a chemical reaction in which an electron is destroyed
B) a chemical reaction in which an electron is made
C) a chemical reaction in which an atom accepts electrons while combining with other elements
D) a chemical reaction in which electrons are transferred to an atom from other elements
  • 6. Reduction is...
A) a chemical reaction in which an atom accepts electrons while combining with other elements
B) a chemical reaction in which an electron is made
C) a chemical reaction in which electrons are transferred to an atom from other elements
D) a chemical reaction in which an electron is destroyed
  • 7. When water (or another liquid) dissolves a solid this is called what type of reaction?
A) solution
B) precipitation
C) depolymerization
D) polymerization
  • 8. A salt forms by the neutralization of what?
A) none of the answers are correct
B) petroleum
C) acids and bases
D) alkanes
  • 9. This produces hydrogen ions (H^+)
A) hydrocarbon
B) acid
C) plastic
D) base
  • 10. This produces hydroxide ions (OH^-)
A) acid
B) plastic
C) base
D) hydrocarbon
  • 11. Which statement(s) are true about the pH scale
A) acids have less H^+ ions pure letter than pure water
B) bases have more H^+ ions than pure water
C) pure water has 10-7 moles/L of H^+ ions
D) all of the answers are correct
  • 12. Most large common biological molecules are built by a process called...
A) hydrocarbonization
B) acidic/basic reactions
C) polymerization
D) depolymerization
  • 13. Hydrocarbons are made up of the following elements.
A) carbon and hydrogen
B) carbon and oxygen
C) hydrogen and oxygen
D) carbon, oxygen and hydrogen
  • 14. Alkanes are a family of molecules that...
A) are easily burned and used for fuels
B) help in acid and base reactions
C) two of the answers are correct
D) length and shape affects the melting points
  • 15. An isomer is...
A) a molecule that is all by itself
B) a different form of an atom
C) a cell that has an equal concentration on the inside as well as the outside of it
D) none of the answers are correct
Učenci, ki so rešili ta test so rešili tudi :
Physical Properties Quiz A1
Unit 1 VOCAB MATCH Phys 8
PHYS 8 Match UNIT 1
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