Chemistry Basics
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Questions and Answers

Which of the following is an example of a homogeneous mixture?

  • Salt
  • Sugar dissolved in water (correct)
  • Iron
  • Oxygen

    • Which of the following is an example of a heterogeneous mixture?

  • Iron
  • Sugar dissolved in water
  • Salt
  • A salad with various ingredients (correct)

    • What is an element?

  • A uniform mixture at the molecular level
  • A chemical combination of different elements
  • A substance that cannot be broken down into simpler substances (correct)
  • A mixture with visibly distinguishable components

    • What is a compound?

    <p>A chemical combination of different elements</p> Signup and view all the answers

    What is the purpose of expressing numbers in scientific notation?

    <p>To make calculations more accurate</p> Signup and view all the answers

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