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The energy of the electron in the first orbit of He + is -871.6x 10 -20 J . The energy of the electron in the first orbit of hydrogen would be : (1) -871.6 x10 -20 J
Explain the Phase Diagrams - Ternary Systems? A ternary system is one with three components. We can independently vary the temperature, the pressure, and two independent compos
1. A sample of water contains: suspended matter = 100 mg; Ca(NO3)2 = 16.4 mg/L; MgSO4 = 24 mg/L; MgCl2 = 19 mg/L; NaOH = 40 mg/L and KOH = 56 mg/L. Calculate temporary, permanent a
Petrochemicals - Characteristics of Hydrocarbons All such types of chemicals that are derived from petroleum or natural gas known as petrochemicals. Some chemicals that are fou
why nnitroalkanes are highly polor compounds*
On the basis of application, how are dyes classified? Describe essential features of any two of them.
1. The pH of a 0.02 M solution of an acid was measured as 4.6. a) What is the [H + ] of the solution? b) What is the acid dissociation constant K an
Physical properties of Alkyl cyanides (1) Alkyl cyanides are neutral substance with pleasant odour, similar to bitter almonds. (2) Alkyl cyanides are Lower members containin
i need help filling in this equation __Na+__O2= __ Na2o
Calculate the activity of nuclides: Problem: 100 mg piece of a gold ornament containing 10% copper as impurity was irradiated with thermal neutrons at 2.1×10 11 n/cm 2
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