TRUE OR FALSE __________ 11. The minimum number of centrifuge tubes in a centrifuge machine during its operation is one. __________ 12. Never place reagents directly onto the weighing pan of a balance, always use weighing paper, a beaker, or some other container. __________ 13. To transfer a solution, the stirring rod touches the delivery point of the reagent vessel and the wall of the receiving vessel. __________
TRUE OR FALSE __________ 11. The minimum number of centrifuge tubes in a centrifuge machine during its operation is one. __________ 12. Never place reagents directly onto the weighing pan of a balance, always use weighing paper, a beaker, or some other container. __________ 13. To transfer a solution, the stirring rod touches the delivery point of the reagent vessel and the wall of the receiving vessel. __________
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
__________ 11. The minimum number of centrifuge tubes in a centrifuge machine during its
operation is one.
__________ 12. Never place reagents directly onto the weighing pan of a balance, always use
weighing paper, a beaker, or some other container.
__________ 13. To transfer a solution, the stirring rod touches the delivery point of the reagent
vessel and the wall of the receiving vessel.
__________ 14. An open flame is the heat source for heating or evaporating flammable liquids.
__________ 15. Most chemicals used in experiments can be discarded into the sink.
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