ThatQuiz Elenco di test Affronta questo test adesso
Chemical Bonding Quiz #3 (Chemical Reactions)
Con il contributo di: Collins
  • 1. Chemical reactions take place when...
A) small molecules come together
B) two of the answers are correct
C) large molecules are broken apart
D) none of the answers are correct
  • 2. In an exothermic reaction...
A) energy is given off
B) energy is needed
C) no answer is c
D) two of the answers are correct
  • 3. In an endothermic reaction...
A) energy is given off
B) none of the answers are correct
C) two of the answers are correct
D) energy is needed
  • 4. Which of the following is not an example of a chemical reaction?
A) baking a cake
B) cutting a piece of wood with a saw
C) a car rusting
D) growing of hair
  • 5. Oxidation is...
A) a chemical reaction in which electrons are transferred to an atom from other elements
B) a chemical reaction in which an electron is made
C) a chemical reaction in which an electron is destroyed
D) a chemical reaction in which an atom accepts electrons while combining with other elements
  • 6. Reduction is...
A) a chemical reaction in which an electron is made
B) a chemical reaction in which an atom accepts electrons while combining with other elements
C) a chemical reaction in which an electron is destroyed
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) precipitation
B) polymerization
C) depolymerization
D) solution
  • 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) hydrocarbon
B) acid
C) plastic
D) base
  • 10. This produces hydroxide ions (OH^-)
A) acid
B) base
C) hydrocarbon
D) plastic
  • 11. Which statement(s) are true about the pH scale
A) pure water has 10-7 moles/L of H^+ ions
B) acids have less H^+ ions pure letter than pure water
C) all of the answers are correct
D) bases have more H^+ ions than pure water
  • 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, oxygen and hydrogen
B) carbon and oxygen
C) carbon and hydrogen
D) hydrogen and oxygen
  • 14. Alkanes are a family of molecules that...
A) help in acid and base reactions
B) are easily burned and used for fuels
C) length and shape affects the melting points
D) two of the answers are correct
  • 15. An isomer is...
A) a different form of an atom
B) a molecule that is all by itself
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
Studenti hanno provato anche :

Creato con That Quiz — un sito di test di matematica per studenti di tutti i livelli.