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Question

Question
Michael has recorded his observations while mixing vinegar and baking soda in a beaker.

Which observation supports Michael’s claim that a chemical change has taken place?

(1 point)
Responses

The remaining solid settled after mixing the ingredients.
The remaining solid settled after mixing the ingredients.

The liquid remained clear after mixing the ingredients.
The liquid remained clear after mixing the ingredients.

All of the solid disappeared after mixing the ingredients.
All of the solid disappeared after mixing the ingredients.

Many bubbles formed after mixing the ingredients.
Many bubbles formed after mixing the ingredients.
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Answer 1

The observation "Many bubbles formed after mixing the ingredients" supports Michael's claim that a chemical change has taken place. This is because the formation of bubbles is often a sign of a chemical reaction occurring, in this case indicating the release of gas.