Which of the following could occur when either a physical or chemical change takes? a. production of smoke b. release of oxygen

Questions

padillacharlesjacob2 @padillacharlesjacob2

January 2023 1 2 Report

Which of the following could occur when either a physical or chemical change takes?

a. production of smoke
b. release of oxygen
c. release of heat
b. formation of bubbles

Answers & Comments

AJ7s

Verified answer

Answer:

Explanation:

Formation of bubbles

Bubbling can be the indication for both chemical or physical change.

Explanation:

When substances are put in the same container like,

Ca CO3 and HCl. A reaction occurs and bubbles escape the container (effervescence). These bubbles are actually gas fumes, and this shows that a new gaseous product is formed.

Here, bubbling indicates our chemical reaction.

On the other hand, when the water is boiled, bubbles are also produced and water vapors escape from the container. Here you can see it is an example of physical change.