Chemical Reactions Quiz
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Questions and Answers

What are the initial substances involved in a chemical reaction called?

  • Products
  • Catalysts
  • Reactants or reagents (correct)
  • Intermediates

What do chemical reactions usually yield?

  • Reactants with unchanged properties
  • Intermediates with different properties
  • Only one product with unchanged properties
  • One or more products with different properties (correct)

How are chemical reactions usually characterized?

  • By a physical change
  • By a change in volume only
  • By a change in mass only
  • By a chemical change (correct)

What is nuclear chemistry concerned with?

<p>Chemical reactions of unstable and radioactive elements (C)</p> Signup and view all the answers

What do chemical equations symbolically present?

<p>Starting materials, end products, and sometimes intermediate products and reaction conditions (B)</p> Signup and view all the answers

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