CHEM1040 Questions - Which of these atomic and\/or molecular views represent pure substances I II III IV A I and III B II and IV C I II and IV D II III

CHEM1040 Questions - Which of these atomic and/or...

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Which of these atomic and/or molecular views represent pure substances?IIIIIIIV A) I and IIIB) II and IVC) I, II and IVD) II, III, and IV 1
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Dry ice sublimes at 25°C and 1 atmosphere pressure. Which equation is the correct symbolic representation for the change that occurs? 2
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In which of these measured values are the zeros not significant figures?I) 0.0591 cm II) 504 gIII) 2.70 m IV) 5300 L 3
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How many electrons, protons, and neutrons are there in the ion 7735X3− ? 4
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Predict the correct name of the compound represented in the box. A) Nitrogen oxideB) Oxygen nitride C) Dinitrogen monoxide D) Nitrogen dioxideOxygenNitrogen 5
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Which name on the right correctly corresponds to the formula shown on the left? Correct Formula Name 6
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Select the compound that contains both ionic and covalent bonds. 3 7
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Which compound is represented by the correct formula? Assume the names are correct. 4 8
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Which of these regions of the electromagnetic spectrum has the shortest wavelength? A) Gamma rays B) Infrared C) Ultraviolet D) Visible 9
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What is the relationship between frequency and wavelength? 10
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The following set of quantum numbers is not allowed: n= 3, l=0, ml= −2. Assuming that the nand mlvalues are correct, change the lvalue to an allowable combination. l = 4 11
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How many 4forbitals are there? 12
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Which of these is a correct set of quantum numbers to describe a 5forbital? A) n= 5, l= 4, ml= +3B) n= 5, l= 3, mC) n= 5, l= 2, ml= +1D) n= 5, l= 1, m l = +2 l = 0 13
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In an atom, what is the maximum number of electrons that can have the quantum numbers n = 4 and ms= 1/ 2 ? 14
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Which of these is an incorrect orbital notation? 15
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