When baking soda and vinegar are mixed together bubbles form and the vinegar and baking soda are changed into new chemicals. this is an example of - a. a physical change. b. a chemical change. c. both a physical and chemical change. d. neither a physical nor a chemical change.

A. Chemical change

Explanation:

When vinegar and baking soda are first mixed together, hydrogen ions in the vinegar react with the sodium and bicarbonate ions in the baking soda. The result of this initial reaction is two new chemicals: carbonic acid and sodium acetate.

33: i think it’s b

well, you would divide 135 by 33 to get your answer. then that is how many seconds it would take. boardman should fly about 132 m or 4.090909090909091 seconds.