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9 grade science

We can say the burning of paper is a physical change.

Because

Energy is either gained or lost by the reactants, when a chemical change occurs.

  • A. True, true (respectively).
  • B. False, false (respectively).
  • C. True, false (respectively).
  • D. False, true (respectively).
  • E. True, true, correct explanation.

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11 Months agoGrade
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1 Answer

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ApprovedApproved Tutor Answer11 Months ago

The statement regarding the burning of paper is actually a bit misleading. The burning of paper is a chemical change, not a physical one. When paper burns, it undergoes a transformation that produces new substances, such as ash and gases, and energy is released in the form of heat and light.

Understanding the Concepts

To clarify:

  • Chemical Change: Involves the formation of new substances and energy changes.
  • Physical Change: Involves changes in state or appearance without altering the substance's chemical composition.

Evaluating the Options

Given this information, the correct answer to the question would be:

  • A. True, true (respectively) - Incorrect
  • B. False, false (respectively) - Incorrect
  • C. True, false (respectively) - Incorrect
  • D. False, true (respectively) - Correct
  • E. True, true, correct explanation - Incorrect

Therefore, the answer is D. False, true (respectively), as burning paper is a chemical change, not a physical one.