When baking soda is added to vinegar, it reacts vigorously, causing some fizzing and gas evolution. If a lit match is brought near the reaction flask, it is extinguished. What two key information help you identify this as a chemical change?

1 Answer
Oct 2, 2017

Answer:

Chemical change is characterized by the formation of new substances, and the making and breaking of strong chemical bonds....

Explanation:

When baking soda, #NaHCO_3#, is added to vinegar, certainly we see the fizz of gaseous carbon dioxide, the new substance that extinguishes the lit match, and CLEARLY strong chemical bonds have been broken and made......