ThatQuiz Knjižnica testov Naredi ta test sedaj
Chemical Bonding Quiz #3 (Chemical Reactions) - Test
Prispevano od: Collins
  • 1. Chemical reactions take place when...
A) large molecules are broken apart
B) two of the answers are correct
C) none of the answers are correct
D) small molecules come together
  • 2. In an exothermic reaction...
A) two of the answers are correct
B) energy is needed
C) no answer is c
D) energy is given off
  • 3. In an endothermic reaction...
A) energy is given off
B) none of the answers are correct
C) energy is needed
D) two of the answers are correct
  • 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) growing of hair
D) a car rusting
  • 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 atom accepts electrons while combining with 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 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) depolymerization
B) precipitation
C) solution
D) polymerization
  • 8. A salt forms by the neutralization of what?
A) acids and bases
B) alkanes
C) none of the answers are correct
D) petroleum
  • 9. This produces hydrogen ions (H^+)
A) acid
B) base
C) hydrocarbon
D) plastic
  • 10. This produces hydroxide ions (OH^-)
A) base
B) acid
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) bases have more H^+ ions than pure water
D) all of the answers are correct
  • 12. Most large common biological molecules are built by a process called...
A) acidic/basic reactions
B) depolymerization
C) hydrocarbonization
D) polymerization
  • 13. Hydrocarbons are made up of the following elements.
A) carbon and hydrogen
B) carbon, oxygen and hydrogen
C) hydrogen and oxygen
D) carbon and oxygen
  • 14. Alkanes are a family of molecules that...
A) help in acid and base reactions
B) two of the answers are correct
C) are easily burned and used for fuels
D) length and shape affects the melting points
  • 15. An isomer is...
A) a cell that has an equal concentration on the inside as well as the outside of it
B) a molecule that is all by itself
C) none of the answers are correct
D) a different form of an atom
Učenci, ki so rešili ta test so rešili tudi :
Physical Properties Quiz A1
Unit 1 VOCAB MATCH Phys 8
PHYS 8 Match UNIT 1
Ustvarjeno z That Quiz — stran z matematičnimi testi za učence za vse stopnje.