Chemistry Practice Test 2026 | Exam Prep Questions And Answers

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A student heats a mixture of iron filings and sulfur powder. After heating, the resulting substance cannot be separated by a magnet. What type of change occurred?

A physical change because the appearance changed A chemical change because a new substance with different properties formed A physical change because heating is always a physical process A nuclear change because heat energy was involved

Correct Answer:

A chemical change because a new substance with different properties formed

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