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Chemical Equations Quiz
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Chemical Equations Quiz

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@SmartChalcedony6307

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Questions and Answers

What is the purpose of the arrow in a chemical equation?

  • To represent the energy change in the reaction
  • To denote the state of matter for each substance
  • To separate reactants and products
  • To indicate the direction of the reaction (correct)

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

  • Atomic numbers of the elements
  • Molar masses of the substances
  • Absolute values of the stoichiometric numbers (correct)
  • Oxidation numbers of the elements

    • Who is credited with diagramming the first chemical equation?

  • John Dalton
  • Jean Beguin (correct)
  • Antoine Lavoisier
  • Dmitri Mendeleev

    • What does a chemical equation consist of?

    <p>A list of reactants, an arrow symbol, and a list of products</p> Signup and view all the answers

    What are the reactant entities in a chemical equation?

    <p>Given on the left-hand side</p> Signup and view all the answers

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