I think your answer would be that it increased
Answer:
Option A. (Be)
Explanation:
Beryllium is used in alloys with copper or nickel to make gyroscopes, springs, electrical contacts, spot-welding electrodes and non-sparking tools.
Answer:
A. sea-floor spreading.
Explanation:
The sea-floor spreading is the result of the new oceanic lithosphere
Answer:
3.79 grams
Explanation:
22.4= STP volume . Molar mass of NH3=17.031
5.00 NH3 × (1 mol/22.4 L) =0.223
convert to grams->
0.223× 17.031= 3.79
The structure of propylamine is pretty linear CH3-CH2 - CH2 - NH2.
The structur of trimethylamine is completely branched: a atom of N surroundeb by three CH3- radicals.
As theory predicts, in absence of other factors, longer chains have higher intermolecular forces (London forces) than branched compounds. So we must expect that propylamine has higher boiling point methyleamine.
You can verify that prediction with the literature. I did it: propylamine boiling point is 47-51°C while methylamine boiling point is 3 - 7°C.
