I would say that you should wear a lab coat, safety goggles, and gloves
when the teacher says so - not everything in a lab is dangerous, so
there is no need to always wear these. But when the teacher says you
should - then you should.
<span>R-COOH
-COOH is the group, that shows that the substance is an organic acid.
Answer is B. Acids</span>
Answer: A severe viral respiratory infection
1. c
2. a
3. a
(I’m not 100% but 2 & 3 couldn’t be transform)