Chemical Bonding Quiz #3 (Chemical Reactions)
  • 1. Chemical reactions take place when...
A) small molecules come together
B) none of the answers are correct
C) large molecules are broken apart
D) two of the answers are correct
  • 2. In an exothermic reaction...
A) two of the answers are correct
B) no answer is c
C) energy is given off
D) energy is needed
  • 3. In an endothermic reaction...
A) energy is given off
B) energy is needed
C) none of the answers are correct
D) two of the answers are correct
  • 4. Which of the following is not an example of a chemical reaction?
A) a car rusting
B) growing of hair
C) baking a cake
D) cutting a piece of wood with a saw
  • 5. Oxidation is...
A) a chemical reaction in which an electron is made
B) a chemical reaction in which an electron is destroyed
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 destroyed
C) a chemical reaction in which an electron is made
D) a chemical reaction in which electrons are transferred to an atom from other elements
  • 7. When water (or another liquid) dissolves a solid this is called what type of reaction?
A) solution
B) depolymerization
C) precipitation
D) polymerization
  • 8. A salt forms by the neutralization of what?
A) alkanes
B) none of the answers are correct
C) petroleum
D) acids and bases
  • 9. This produces hydrogen ions (H^+)
A) base
B) hydrocarbon
C) plastic
D) acid
  • 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) all of the answers are correct
B) pure water has 10-7 moles/L of H^+ ions
C) bases have more H^+ ions than pure water
D) acids have less H^+ ions pure letter than pure water
  • 12. Most large common biological molecules are built by a process called...
A) depolymerization
B) polymerization
C) acidic/basic reactions
D) hydrocarbonization
  • 13. Hydrocarbons are made up of the following elements.
A) carbon and oxygen
B) carbon and hydrogen
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) two of the answers are correct
C) length and shape affects the melting points
D) help in acid and base reactions
  • 15. An isomer is...
A) a different form of an atom
B) a cell that has an equal concentration on the inside as well as the outside of it
C) none of the answers are correct
D) a molecule that is all by itself
Studenten, die diese Prüfung ablegten, nahmen auch :

Erstellt mit ThatQuiz — Eine Mathe-Test-Site für Schüler aller Klassenstufen.