Chemical Equations and Formulae Quiz
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Questions and Answers

What is the purpose of using chemical formulae in chemical equations?

  • To represent a chemical reaction more concisely and effectively (correct)
  • To make the equations longer and less useful
  • To confuse students with complex symbols
  • To increase the mass on both sides of the equation

How can you determine if a chemical equation is balanced?

  • By comparing the length of the equation on both sides
  • By analyzing the color of the compounds in the reaction
  • By reviewing the number of atoms of each element on both sides (correct)
  • By counting the words used in the equation

What does the law of conservation of mass state regarding balanced chemical equations?

  • The mass increases on both sides of the equation in a balanced chemical reaction
  • The total mass of the elements in the products is equal to the total mass in the reactants (correct)
  • The mass decreases on both sides of the equation in a balanced chemical reaction
  • The total mass of the elements in the products is not equal to the total mass in the reactants

What is a skeletal chemical equation?

<p>An unbalanced equation with different numbers of atoms on each side (A)</p> Signup and view all the answers

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