Question

A science class did an experiment in which two substances were mixed. After 15 minutes, everything looks the same, but the students noticed an odor coming from the experiment. What does this likely indicate?

a.) a liquid was formed.
b.) a temperature change occurred
c.) a chemical reaction occurred
D.) a physical change occurred

Answer 1

chemical reaction

Step-by-step explanation:

nothing changed with the appearance of how it looks

Answer 2

C a chemical reaction formed

Step-by-step explanation:

if something changes smell and nothing else it is a chemical reaction, every other answer does not make sense