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Author Question: The element that corresponds to the electron configuration 1s22s22p2 is ________. A) lithium B) ... (Read 81 times)

tth

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on: Aug 27, 2018
The element that corresponds to the electron configuration 1s22s22p2 is ________.
 
  A) lithium
  B) beryllium
  C) boron
  D) nitrogen
  E) carbon

Question 2

Since air is a mixture, it does not have a molar mass. However, for calculation purposes, it is possible to speak of its effective molar mass.
 
  (An effective molar mass is a weighted average of the molar masses of a mixture's components.) If air at STP has a density of 1.285 g/L, its effective molar mass is ________ g/mol.
  A) 26.94
  B) 31.49
  C) 30.00
  D) 34.42
  E) 28.80
Chemistry: The Central Science ¦ Brown, LeMay, Bursten ¦ 14th Edition
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Jane

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Reply #1 on: Aug 27, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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tth

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Reply 2 on: Aug 27, 2018
Excellent

nanny

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Reply 3 on: Yesterday
Gracias!

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