What is important to remember while one is using heat inside the laboratory? * Before using a Bunsen burner, make sure that there are no flammable materials scattered around the laboratory table. In heating a beaker, the beaker should be placed directly on top of the Bunsen burner, without support. You can use your hand to hold the hot container as long as you have a thick laboratory gown. The vapor of the substance being heated can be inhaled directly by sniffing the mouth of the container. In dealing with chemical spills from broken glass apparatus inside the laboratory, which of the following should be done first? * O Cry for a long time and feel miserable. Throw the glass into the nearest trash bin and let the spill air-dry. Clean up the spill with water and paper towels, then place the broken test tube in the disposal container provided by the instructor for sharp objects. Throw away the glass quickly, clean up the spill with the nearest cloth, and pray no one sees.
What is important to remember while one is using heat inside the laboratory? * Before using a Bunsen burner, make sure that there are no flammable materials scattered around the laboratory table. In heating a beaker, the beaker should be placed directly on top of the Bunsen burner, without support. You can use your hand to hold the hot container as long as you have a thick laboratory gown. The vapor of the substance being heated can be inhaled directly by sniffing the mouth of the container. In dealing with chemical spills from broken glass apparatus inside the laboratory, which of the following should be done first? * O Cry for a long time and feel miserable. Throw the glass into the nearest trash bin and let the spill air-dry. Clean up the spill with water and paper towels, then place the broken test tube in the disposal container provided by the instructor for sharp objects. Throw away the glass quickly, clean up the spill with the nearest cloth, and pray no one sees.
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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Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
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Choose the best answer among the choices under each question/ statement. Thank you
Transcribed Image Text:What is important to remember while one is using heat inside the
laboratory? *
Before using a Bunsen burner, make sure that there are no flammable materials
scattered around the laboratory table.
In heating a beaker, the beaker should be placed directly on top of the Bunsen burner,
without support.
You can use your hand to hold the hot container as long as you have a thick laboratory
gown.
The vapor of the substance being heated can be inhaled directly by sniffing the mouth
of the container.
In dealing with chemical spills from broken glass apparatus inside the
laboratory, which of the following should be done first? *
O Cry for a long time and feel miserable.
O Throw the glass into the nearest trash bin and let the spill air-dry.
Clean up the spill with water and paper towels, then place the broken test tube in the
disposal container provided by the instructor for sharp objects.
Throw away the glass quickly, clean up the spill with the nearest cloth, and pray no
one sees.
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