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Grade 8 Reactions
A reaction in which one element is substituted for another in a compound is called a(n)
  1. exothermic reaction.
  2. decomposition reaction.
  3. synthesis reaction.
  4. replacement reaction.
Grade 10 Macromolecules
Enzymes affect the reactions in living cells by changing the
  1. products of the reaction.
  2. speed of the reaction.
  3. temperature of the reaction.
  4. pH of the reaction.
Grade 11 Electrochemistry
What kind of chemical reactions spontaneously takes place in electrochemical cells?
  1. decomposition reaction
  2. redox reaction
  3. synthesis reaction
  4. displacement reaction
Grade 9 Reactions
Grade 9 Macromolecules
Enzymes affect the reactions in living cells by changing the
  1. pH of the reaction.
  2. speed of the reaction.
  3. products of the reaction.
  4. temperature of the reaction.
Grade 12 Kinetics and Equilibrium
Grade 10 Reactions
The burning of methane is an example of a(n)
  1. catabolic reaction.
  2. biochemical reaction.
  3. anabolic reaction.
  4. exothermic reaction.
Grade 11 Acids and Bases
Which of the following is a type of acid-base reaction?
  1. Neutralization reaction
  2. Synthesis reaction
  3. Decomposition reaction
  4. Redox reaction
Grade 9 Reactions
A reaction that forms water and a salt is called a
  1. chemical reaction
  2. basic reaction
  3. neutralization reaction
Grade 11 Reactions
Which of the following refers to the type of reaction that occurs when an oxidizing agent is reduced?
  1. redox reaction
  2. neutralization reaction
  3. double replacement reaction
  4. combustion reaction
  5. oxidation half-reaction
Continuing Education Biochemical Pathways
Grade 10 Reactions
What type of reaction does the following equation represent?

[math]FeS + 2HCl rarr FeCl_2 + H_2S[/math]
  1. synthesis reaction
  2. double-displacement reaction
  3. single-displacement reaction
  4. decomposition reaction
Grade 8 Reactions
Which kind of reaction needs energy to continue?
  1. Endothermic Reaction
  2. Exothermic reaction
Grade 11 Kinetics and Equilibrium
Acid hydrolysis of methyl acetate is an example of a(n)
  1. third-order reaction.
  2. zero-order reaction.
  3. second-order reaction.
  4. first-order reaction.
Grade 8 Reactions
A chemical equation that shows the same number of each kind of atom is considered to be
  1. balanced.
  2. unbalanced.
  3. an incomplete reaction.
  4. a replacement reaction.
Grade 8 Reactions
What would happen if the activation energy for a particular chemical reaction was not available?
  1. the reaction would occur faster
  2. the reaction would occur slower
  3. the reaction would not occur
  4. the reaction would begin sooner
Grade 9 Macromolecules
What is the primary purpose and function of enzymes, in the context of reactions that occur within living cells?
  1. They lower the active site energy of the reaction.
  2. They lower the speed of the reaction.
  3. They lower the temperature of the reaction.
  4. They lower the activation energy of the reaction.
Grade 10 Reactions
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