6
QuizMultiple Choice

Lab: Enthalpy — Unit test

Question 6 • Foothill-B Period-Chemistry-26/27B

Which statement describes the law of conservation of energy?

Answer
A
All systems will exchange matter and energy with their surroundings.
B
All systems can exchange energy, but not matter, with their surroundings.
C
Energy cannot be created nor destroyed, but it changes from one form to another.
D
Energy is destroyed in most chemical reactions when new products are formed.

Explanation

The law of conservation of energy states that energy cannot be created or destroyed. It can be transferred between objects or changed from one form to another, such as chemical energy becoming heat. Therefore, the statement that energy changes form but is not created or destroyed is correct.

AI-written and checked against the verified answer.

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