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4 Written questions

3 Multiple choice questions

  1. (chemistry) the ratio of concentrations when equilibrium is reached in a reversible reaction (when the rate of the forward reaction equals the rate of the reverse reaction)
  2. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
  3. the expressions that describes the relationship among the concentrations (or partial pressures) of the substances present in a system at equilibrium. Numerator=products raised to coefficients, and denominator=reactants raised to coefficients. *It depends only on the stoichiometry of the reaction, not on its mechanism

3 True/False questions

  1. homogeneous equilibriaan equilibrium system in which all reactants and products are in the same state


  2. Haber processa process to synthesize ammonia on an industrial scale. developed by German chemist Fritz Haber and Carl Bosch, the process has enabled humans to double the natual rate of nitrogen fixation on Earth and thereby increase agricultural productivity, but it has also dramatically altered the nitrogen cycle


  3. law of mass action(chemistry) the law that states the following principle: the rate of a chemical reaction is directly proportional to the molecular concentrations of the reacting substances


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