Question

After the experiment, Mario noticed that the plastic bottle felt warm when touched. If Mario repeats this experiment, what data will need to be collected to provide further proof that a chemical change has occurred?

A
The temperature of the foam should be taken to determine if the warmth of the bottle is coming from the foam.

B
The mass of the foam should be taken to determine if the warmth of the bottle is coming from a loss in mass because of the foam.

C
The mass of the yeast should be taken to determine if the warmth of the bottle is coming from a loss in mass because of the yeast.

D
The temperature should be taken at the start of the reaction and at the end of the reaction to see if a change in temperature has occurred.

Answer 1

D

Step-by-step explanation:

The answer is D because if you record the temp before and after the experment you can see whats the change between them.

Answer 2

I’m pretty sure it’s B not for sure though