What is a best explanation for different metals having various colors?
es
A)
The spect...
Chemistry, 19.09.2021 19:30 GracieMaeB
What is a best explanation for different metals having various colors?
es
A)
The spectrum of lines will be produced, some of which will be in the
visible part of the spectrum. The color you see will be the highest energy
observed.
B)
The spectrum of lines will be produced, all of which will be in the visible
part of the spectrum. The color you see will be the most common color in
the spectrum.
The spectrum of lines will be produced, all of which will be in the visible
part of the spectrum. The color you see will be a combination of all these
individual colors.
D)
The spectrum of lines will be produced, some of which will be in the
visible part of the spectrum. The color you see will be a combination of all
these individual colors.
Answers: 2
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There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .
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