Hiro does not see a puddle of liquid on the lab table and accidentally touches the liquid. what should hiro do next?
a)he should tell his teacher about the spill and clean it up with paper towels.
b)he should tell his teacher about the spill and rinse his hand in the sink.
c)he should tell the other students and clean up the spill with paper towels.
d)he should tell the other students and rinse his hand in the sink.

Option (B) is the correct answer.

Explanation:

It is advised that while conducting an experiment in a laboratory, always perform it under the supervision of your teacher.

When Hiro accidentally touches the liquid then he should immediately tell his teacher about it so that timely precaution can be taken to avoid any damage or side effect. Also, Hiro should rinse his hand in the sink because it will neutralize or decrease the effect of spilled liquid on his skin.

Thus, we can conclude that he should tell his teacher about the spill and rinse his hand in the sink.

B) He should tell his teacher about the spill and rinse his hand in the sink.

Explanation:

While performing an experiment or attending a lesson in a laboratory special safety norms needs to be followed by students as well as by the teachers. It is advice that experiments in the laboratory should be performed under the supervision of the teacher or lab staff who could take initiatives during chemical and fire hazards.

According to the given situation, B) He should tell his teacher about the spill and rinse his hand in the sink. is the correct option because of the fact that the unknown liquid could be strong acid or base or any other harmful chemical which either sooner or later can produce a burning sensation or itching. Teacher should be informed first instead of fellow students because teacher could give direction if any injury is likely to happen.

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )

c. 7/3

step-by-step explanation:

a rational number is like pi- it is a repeating decimal.

a. is -1.8

b. 2.236068

c. 2.3333333333333333333

d.   is 3

i hope that ! =)