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7. Which of these is not an observation that a chemical change has occurred? A. The temperature changes B. A gas is produced (bubbling) C. The substance is slippery D. A permanent change in color PLEASE
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7. Which of these is not an observation that a chemical change has occurred?

A. The temperature changes
B. A gas is produced (bubbling)
C. The substance is slippery
D. A permanent change in color


PLEASE HELP!!!!

User Dilraj Singh
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5.4k points

2 Answers

0 votes
The answer is D.

When the color changes you can’t undo that making it a chemical bond
User Igniter
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3 votes
The answer is C or D

Why i say C is because it only says the substance is slippery, no sign of chemical change

D - the answer “a permanent change in color” has the word “change” in it although it could be permanent color.

The answers most likely C.
User Juan Pablo Santos
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5.6k points
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