Chemical Equations Quiz
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Questions and Answers

Which of the following is true about the structure of a chemical equation?

  • It consists of a list of products on the left-hand side and reactants on the right-hand side
  • It consists of a list of reactants on the left-hand side and products on the right-hand side (correct)
  • It consists of a list of products only
  • It consists of a list of reactants only

    • Who diagrammed the first chemical equation and in what year?

  • Dmitri Mendeleev in 1869
  • Jean Beguin in 1615 (correct)
  • Marie Curie in 1903
  • Antoine Lavoisier in 1789

    • What do the coefficients next to the symbols and formulas of entities in a chemical equation represent?

  • The concentration of each entity
  • The molar mass of each entity
  • The number of moles of each entity
  • The absolute values of the stoichiometric numbers (correct)

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