Engineering, 11.12.2019 05:31 laceytoyne72
The sp² hybridized carbon atoms of alkenes and benzene rings are and absorb . ¹³ c nmr absorptions typically occur over the range of ppm. a triplet is an nmr single that is split into three peaks having a relative area of , caused by nearby nonequivalent protons. an upfield shift means a signal is shifted to the in the spectrum to chemical shifts. electronegative elements like halogens, nitrogen, and oxygen shift absorptions . the proton’s is determined by shielding and deshielding effects. a doublet is an nmr signal that is split into two peaks of area, caused by nearby nonequivalent proton. a downfield shift means a signal is shifted to the in the spectrum to chemical shifts on the δ scale. the sp³ hybridized carbon atoms of alkyl groups are and absorb .
Answers: 3
Engineering, 04.07.2019 18:10
Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery
Answers: 2
Engineering, 04.07.2019 18:20
Select any two (2) areas of applications of chain-drive. (clo4) a)-permanent lubrication necessary b)-hydraulic forklift truck operation c)-rigging and heavy moving materials d)-relatively high maintenance costs e)-costlier than belt drives
Answers: 2
Engineering, 04.07.2019 18:20
Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?
Answers: 1
Engineering, 04.07.2019 19:10
In general, how do thermosetting plastics compare to thermoplastics in mechanical and physical properties?
Answers: 3
The sp² hybridized carbon atoms of alkenes and benzene rings are and absorb . ¹³ c nmr absorptions...
Biology, 17.12.2019 22:31
Mathematics, 17.12.2019 22:31
Mathematics, 17.12.2019 22:31
English, 17.12.2019 22:31
Chemistry, 17.12.2019 22:31
Mathematics, 17.12.2019 22:31
History, 17.12.2019 22:31
Mathematics, 17.12.2019 22:31
Social Studies, 17.12.2019 22:31
History, 17.12.2019 22:31
Physics, 17.12.2019 22:31
Business, 17.12.2019 22:31
Health, 17.12.2019 22:31
Mathematics, 17.12.2019 22:31