2 years ago

7. Which of these is not an observation that a chemical change has occurred?

Mathematics

2 answers:

astra-53 [7]2 years ago

6 0

The answer is D.

When the color changes you can’t undo that making it a chemical bond

kari74 [83]2 years ago

6 0

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.

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