F325

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1. How is the value of Kc calculated in an equilibrium?

  • Concentration of products / concentration of reactants ([D]d [C]c / [A]a [B]b)
  • Concentration of reactants / concentration of products ([A]a [B]b / [D]d [C]c)
  • Concentration of reactants X concentration of products
  • Amount in moles of products / amount in moles of reactants
  • Amount in moles of reactants / amount in moles of products
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Other questions in this quiz

2. How is the rate constant, k, calculated?

  • Rate equation X initial rate
  • Concentration of all reactants / initial rate
  • Initial rate / rate equation
  • Rate equation / initial rate
  • (Initial rate / rate equation) X 100

3. What is meant by the strength of an acid?

  • Its pKa value
  • Its concentration
  • Its Ka value
  • Its ability to dissociate in solution
  • Its volume

4. Which of these is not a property of a transition element?

  • Can commonly form both negative and positive ions
  • Catalyst
  • Can form complex ions
  • Various oxidation states
  • Forms colourful compounds

5. [Ni(H2O)6]2+ + 6NH3 --> [Ni(NH3)6]2+ + 6H2O is an example of what type of reaction?

  • Neutralisation reaction
  • Ligand substitution
  • Electrophilic substitution
  • Precipitation reaction
  • Redox reaction

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