Chemical Changes and Reactions Quiz
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Questions and Answers

What is another term for the formation of a new substance in a chemical reaction?

  • Endothermic reaction
  • Inorganic change
  • Chemical decomposition
  • Chemical synthesis (correct)

Which type of reaction requires heat to enable the reaction to occur?

  • Chemical decomposition
  • Inorganic change
  • Exothermic reaction
  • Endothermic reaction (correct)

What is an example of a chemical change as mentioned in the text?

  • The reaction between sodium and water to produce sodium hydroxide and hydrogen (correct)
  • Mixing salt and water
  • Mixing sugar and water
  • Mixing oil and water

What is the major part of the science of chemistry that involves understanding chemical changes?

<p>Chemical synthesis (D)</p> Signup and view all the answers

In which type of chemical change do the reactions involve elements and compounds that do not involve carbon?

<p>Inorganic changes (C)</p> Signup and view all the answers

Which of the following is an example of a typical organic chemical change?

<p>Polymerization reaction (B)</p> Signup and view all the answers

What can indicate that a chemical change has taken place?

<p>All of the above (D)</p> Signup and view all the answers

Which field of chemistry is concerned with the growth and activity of living organisms?

<p>Biochemistry (C)</p> Signup and view all the answers

What are the typical types of changes involved in biochemical processes?

<p>The Krebs cycle (B)</p> Signup and view all the answers

What is a typical example of a chemical change that is difficult or impossible to reverse?

<p>Polymerization reaction (B)</p> Signup and view all the answers

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