Answer:
CH4+2O2-->2H2O+CO2 chemical reaction
Answer:
Anna didn't wear a lab coat
Explanation:
The first thing anyone who is to carry out a procedure or an experiment in a lab needs to do when he/she enters a lab is to wear a lab coat. This is a lab safety rule that protects the individual from been affected by spillage that could occur as a result of the experiment been conducted.
From the narration in the question, <u>it is not stated anywhere that Anna wore a lab coat before embarking on her lab procedure</u>.
I believe this would be an exothermic reaction, As time increases, the temperature goes up meaning the heat from the system is going into the surroundings. Which indicates an exothermic reaction.
Because they are easier to see, I guess.
