Question
A student pours two chemicals into a beaker.
Which activity provides the ,begin emphasis,best,end emphasis, evidence that a chemical reaction is happening?
Answer options with 4 options
A.
wafting above the beaker to check for smells
B.
looking for a phase change in one or both chemicals
C.
measuring the temperature of the liquid to see if it is changing
D.
swirling the contents of the beaker to see if the two chemicals separate
Which activity provides the ,begin emphasis,best,end emphasis, evidence that a chemical reaction is happening?
Answer options with 4 options
A.
wafting above the beaker to check for smells
B.
looking for a phase change in one or both chemicals
C.
measuring the temperature of the liquid to see if it is changing
D.
swirling the contents of the beaker to see if the two chemicals separate
Answers
GPT-4o mini
The activity that provides the best evidence that a chemical reaction is happening is:
**C. measuring the temperature of the liquid to see if it is changing.**
A temperature change in a reaction can indicate that a chemical reaction has occurred, as it typically involves energy changes, whereas the other options may not clearly indicate a chemical reaction.
**C. measuring the temperature of the liquid to see if it is changing.**
A temperature change in a reaction can indicate that a chemical reaction has occurred, as it typically involves energy changes, whereas the other options may not clearly indicate a chemical reaction.