Answers created by Paul T. the science nerd
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Question #ba857
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Question #1730e
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How can you chemically coat copper coins with a layer of zinc?
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If a gas in a closed container is pressurized from 15.0 atm to 16.0 atm and its original temperature was 25°C, what would be the final temperature of the gas in Kelvin?
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Question #54de0
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Question #5c0eb
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Does heat transfer by convection happen mostly in solids, liquids, or gases?
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Is metallic bond between two metals, or is present in one metal?
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What is the density of an object having a mass of 8.0 g and a volume of 25 cm ?
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How many electrons are in the outermost energy level of an oxygen atom?
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Question #5d6c3
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Question #60d5d
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What law can be used to calculate the number of moles of a contained gas?
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Question #75b51
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Question #5993f
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Question #03662
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This is an example of heat transfer by what?
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Question #de72a
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When carbon forms four covalent bonds, what is the orbital hybridization?
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Do elements in the same row across belong to the same period or group?
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What is the difference between an element, compound, and molecule?
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How does increasing and decreasing the temperature affect the pressure of containe of gas?
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How do you define the octet rule?
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What is the process by which atomic nuclei spontaneously decay called?
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Question #ba5a1
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What is the maximum number of electrons that the 3d sublevel may contain?
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How many unpaired electrons are in a phosphorus atom?
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What is true of all atoms?
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Question #d25b6
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How could you distinguish an element from a compound?
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How do you name the compound #LiCr_2O_7#?
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Question #3bfb1
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Question #dc3b8
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Which process represents oxidation with respect to the metal centre?
#"A. "Fe(s)+2HCl(aq) rarr FeCl_2(aq) + H_2(g)#
#"B. "FeCl_2(s)+H_2(aq) rarr Fe(s) + 2HCl(aq)#
#"C. "Fe(NO_3)_2(aq)+2HCl(aq) rarr FeCl_2(aq) + 2HNO_3(aq)#
#"D. "Fe_2O_3(s) + H_2(g)#
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Question #6db38
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Both of calcium's electrons are in its innermost shell. Why is this?