counting by weighing
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Questions and Answers

Chemical stoichiometry involves studying the quantities of materials consumed and produced in chemical reactions. This concept requires understanding the concept of _________.

  • molecular formulas
  • stoichiometric coefficients
  • atomic masses (correct)
  • chemical equations

    • When counting objects by their mass, it is necessary to know the _________.

  • average mass of objects (correct)
  • total mass of objects
  • mass of individual objects
  • density of objects

    • Samples of matter can contain ________ of atoms.

  • random numbers
  • limited numbers
  • huge numbers (correct)
  • equal numbers

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