Answers: 2
Chemistry, 21.06.2019 21:30
It takes 945.kj/mol to break a nitrogen-nitrogen triple bond. calculate the maximum wavelength of light for which a nitrogen-nitrogen triple bond could be broken by absorbing a single photon.
Answers: 3
Chemistry, 22.06.2019 14:00
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
Chemistry, 22.06.2019 23:30
The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth
Answers: 1
Chemistry, 23.06.2019 16:30
If the enthalpy value for a reaction is negative, what does that indicate about the reaction?
Answers: 1
Aluminium is a metal give reason...
History, 17.12.2020 03:00
Mathematics, 17.12.2020 03:00
Mathematics, 17.12.2020 03:00
Arts, 17.12.2020 03:00
Mathematics, 17.12.2020 03:00
Engineering, 17.12.2020 03:00
Social Studies, 17.12.2020 03:00
Computers and Technology, 17.12.2020 03:00
Biology, 17.12.2020 03:00
Mathematics, 17.12.2020 03:00
Health, 17.12.2020 03:00