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2. What is the definition of a structural isomer?

  • Same molecular formula, different skeletal formula
  • Same molecular formula, different structural formula
  • Same structural formula, different molecular formula

3. What is the equation for energy transferred?

  • Mass of water x heat capacity x temperature change
  • Mass of water / heat capacity x temperature change
  • Mass of reactant x heat capacity x temperature change

4. What is the definition of entropy?

  • The number of different ways you can arrange particles
  • The number of particles in a mole of gas
  • The number of ways to remove particles

5. What is the definition of a catalyst?

  • A substance that is chemically changed at the end of a reaction
  • A substance that lowers activation enthalpy and is chemically unchanged at the end of a reaction
  • A substance that changed the reactants and is unchanged
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