Chemistry: Matter and Change
Chemistry: Matter and Change
1st Edition
ISBN: 9780078746376
Author: Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher: Glencoe/McGraw-Hill School Pub Co
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Chapter 1, Problem 1STP
Interpretation Introduction

Interpretation:

When working with chemicals in laboratory, the step which should not be taken is to be chosen from the given options.

Concept introduction:

Laboratory or lab is a place that is especially equipped for experimental study in science or for testing and analysis. Various experiments are performed in the lab but with safety measures such as goggles, gloves, apron, etc.

Expert Solution & Answer
Check Mark

Answer to Problem 1STP

Correct answer: The correct answer is option (b). Unused chemicals should not be poured back into their original bottles.

Explanation of Solution

Unused chemical compounds should not be put back in the stock as they might have changed their chemical properties when they were exposed to oxygen. Thus, it is the correct option, but an incorrect step to be followed in the laboratory.

Conclusion

a. One should read the chemical labels before using their contents in order to perform the right experiment without any damage.

c. Someone who has been splashed with chemicals should use a lot of water to wash skin in order to have minimal or no harm on the skin as water not only washes it away but also cools it down.

d. Take only as much as you need of shared chemicals because unused chemicals cannot be put back, thus, it will go waste.

Hence, option (a), (c) and (d) are incorrect as they are the steps that should be taken in the lab.

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