Question

micah dropped an effervescent tablet into a glass of water. the tablet began to fizz, and tiny bubbles formed in the water. the fizzing and bubbling are evidence that which of the following took place? a. a new substance was formed when the tablet was dropped into the water. b. the water turned into an effervescent solid when the tablet was dropped into the glass. c. the tablet turned into liquid water when it was dropped into the glass. d. the tablet made the water change from a liquid to a solid.

Explanation:

Fizzing and bubbling are signs of a chemical reaction, which results in the formation of a new substance. When an effervescent tablet is dropped in water, a chemical change occurs producing gas (the bubbles), indicating a new substance is formed.

Answer:

A. A new substance was formed when the tablet was dropped into the water.