choose the correct option.
1 . Which of the following is not a characteristic of a chemical reaction?
a. Change of size
b. Change of state
c. Heat absorbed
d. Formation of precipitate
2. The formation of gas bubbles with a sound in a solution is called
a. physical change.
b. effervescence.
c. precipitation
d. chemical reaction.
Share
Answer:
1: a
2 : b
Explanation:
hope it helps you
please mark this as brainliest
Answer:
change of size, effervescence