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TRUE OR FALSE _ 1. To dispense chemicals, read the label at least twice before removing any chemical from the reagent bottle. __________ 2. When heating a liquid in a test tube, the test tube should be more than two- thirds full, moved continuously in and out of the cool flame at a 45o angle, mostly near the top of the liquid. __________ 3. The volume of a liquid should be read at the bottom of the meniscus. __________

TRUE OR FALSE _ 1. To dispense chemicals, read the label at least twice before removing any chemical from the reagent bottle. __________ 2. When heating a liquid in a test tube, the test tube should be more than two- thirds full, moved continuously in and out of the cool flame at a 45o angle, mostly near the top of the liquid. __________ 3. The volume of a liquid should be read at the bottom of the meniscus. __________

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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TRUE OR FALSE _ 1. To dispense chemicals, read the label at least twice before removing any chemical from the reagent bottle. __________ 2. When heating a liquid in a test tube, the test tube should be more than two- thirds full, moved continuously in and out of the cool flame at a 45o angle, mostly near the top of the liquid. __________ 3. The volume of a liquid should be read at the bottom of the meniscus. __________ 4. A litmus paper test for the acidity or basicity of a solution is done by dipping a stirring rod into the solution and using this to wet the litmus paper. __________ 5. Water or glycerol should be applied to the glass tubing and the hole in the rubber stopper before inserting the glass tubing.
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