Michael has recorded his observations while mixing vinegar and baking soda in a beaker.
Observations Before Mixing
Observations After Mixing
Vinegar is a clear liquid.
• The liquid remains clear.
Baking soda is a white solid.
• Many bubbles form.
• The remaining solid settles at the bottom.
Which observation supports Michael's claim that a chemical change has taken place?
(1 point)
The liquid remained clear after mixing the ingredients.
The remaining solid settled after mixing the ingredients.
Many bubbles formed after mixing the ingredients.
All of the solid disappeared after mixing the ingredients.
Many bubbles formed after mixing the ingredients.
This observation supports Michael's claim that a chemical change has taken place because the formation of bubbles is a common indicator of a chemical reaction occurring, showing that a new substance is being formed.