Chemistry Test With Answer Key - Regents High School Examination, The University Of The State Of New York, 2016 Page 23
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33Part B–2
Allow a total of 15 credits for this part. The student must answer all questions in this part.
51 [1] Allow 1 credit for any value from 84 kPa to 87 kPa, inclusive.
52 [1] Allow 1 credit. Acceptable responses include, but are not limited to:
28.0855 g
100
28.0855 g
2(15.9994 g)
28.1 u
100
60.1 u
28(100)
60
53 [1] Allow 1 credit. Acceptable responses include, but are not limited to:
A metal reacts with a nonmetal to produce an ionic compound.
Potassium is a metal and oxygen is a nonmetal.
54 [1] Allow 1 credit. Acceptable responses include, but are not limited to:
Not all of the wavelengths of element A are shown in the wavelengths of the mixture.
The mixture has no spectral line at 700 nm.
55 [1] Allow 1 credit. Acceptable responses include, but are not limited to:
The wavelengths of the spectral lines for element Z are independent of the mass of the sample.
All atoms of element Z have the same electron configuration in the ground state.
The intensive properties of an element remain constant.
[3]
P.S./Chem. Rating Guide–Jan. ’16
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