Electricity for Refrigeration, Heating, and Air Conditioning
9th Edition
ISBN: 9781285179988
Author: Russell E. Smith
Publisher: Cengage Learning
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Chapter 2, Problem 18RQ
True or False: All atoms tend to lose electrons.
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Chemical energy refers to the energy associated with the bonds within nucleus of atom itself.
Select one:
True
False
If you want to make a electrically neutral object to be negative, what would do?
just write down a negative sign
remove some atoms
remove some electrons
add some electrons
add some atomes
The _________ is that part of an atom that moves from one atom to another.A. electronB. protonC. neutron
Chapter 2 Solutions
Electricity for Refrigeration, Heating, and Air Conditioning
Ch. 2 - All physical objects are composed of __________....Ch. 2 - What is an atom?Ch. 2 - Which of the following is a part of the atom? a....Ch. 2 - What is static electricity?Ch. 2 - Name three ways electricity can be produced.Ch. 2 - What part do protons and electrons play in the...Ch. 2 - Which of the following is the simplest atom that...Ch. 2 - What are the four most important characteristics...Ch. 2 - What is electromotive force?Ch. 2 - Electromotive force is commonly measured in _____....
Ch. 2 - What is current?Ch. 2 - How is current measured? a. amperes b. ohms c....Ch. 2 - What is resistance?Ch. 2 - How is resistance commonly measured? a. amperes b....Ch. 2 - What is electrical power?Ch. 2 - How is electrical power commonly measured? a....Ch. 2 - Where do electrons exist in an atom, and what is...Ch. 2 - True or False: All atoms tend to lose electrons.Ch. 2 - State the law of electric charges.Ch. 2 - What is a proton? Where does it normally exist in...Ch. 2 - Describe briefly the method a dry cell battery...Ch. 2 - What is a conductor?Ch. 2 - Which of the following is the best conductor? a....Ch. 2 - What is an insulator?Ch. 2 - Which of the following is the best insulator? a....Ch. 2 - Why do metals make the best conductors?Ch. 2 - How do electric utility companies charge customers...Ch. 2 - What is the meaning of SEER when used in...Ch. 2 - State Ohms law.Ch. 2 - True or False: Ohms law applies to all types of...Ch. 2 - What is the ampere draw of a 5000-watt electric...Ch. 2 - What is the resistance of the heating element of...Ch. 2 - What is the voltage of a small electric heater if...Ch. 2 - What is the Btu/hour output of an electric heater...Ch. 2 - What is the kilowatt output of an electric heater...
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- How much voltage is produced by a silicon solar cell?arrow_forwardWhile discussing current flow: Technician A says that current results from electrons being attracted to protons. Technician B says that for practical purposes, it is best to remember that current flows from a point of higher potential to a point of lower potential. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardThe __________is that part of an atom that moves from one atom to another. A. electron B. proton C. neutronarrow_forward
- Paraffins are compounds having the same number and kind of Atoms joining to form different structures having different properties. A paraffin is a molecule with the same formula as another molecule, but with a different chemical structure. True or falsearrow_forwardWhen electrons are in valance band, they conduct electricity. Select one: True Falsearrow_forwardThe type of hazard whereby sparks are generated electrically is called: Explosion contact fires strain.arrow_forward
- fill in the blanks When an element has its proper complement of valence electrons, it is electrically _________; when an atom has more or fewer than that number, it is an ion and has an electric charge. The charge is ________ when extra electrons are present and ________ when some are missing. .The ____________ bond is formed among metallic atoms when some electrons in the valence shell separate from their orbital path and exist in a free state like a cloud or gas. Surrounding the positive nuclei in this highly mobile state, the negative cloud bonds the atoms together. Because the electrons in the cloud do not “belong” to any particular atoms, the bond strengths can vary, deformation can take place without rupture, and good heat and electrical conductivity can occur owing to the easy movement of electrons from one atomic site to the next. This type of bonding makes possible some of the useful characteristics of metals, both mechanical properties and physical properties.arrow_forwardWhich of the following element revolves around the nucleus in an atom a. Neutrons b. Protons c. Neutrons and Protons d. Electronsarrow_forward40arrow_forward
- True or False: The BREAK command converts rays into Xlines.arrow_forwardIn the electron arrangement of a calcium atom, how many electrons are in the second energy level? Plz solvearrow_forwardWhich one of the following is not true about electrochemistry? Group of answer choices It is a tool for making nanostructures It is the tool to characterize nanostructures Chemical reactions provide electric current like that of batteries Electroplating can measure nanostructuresarrow_forward
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