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what is symetrycal tribromo benzene
why are orbitals occupied singly first befor the pairing of electron occurs
what will you observe if you freeze water at 4 degree celcious
Gold has a molar mass of 197g/mol. How many atoms are in the sample?Please give me procedure also. Ans) molecular wieght of gold is 197 g 1mole/g of molecule is occupies the
The radius of electron in the first excited state of hydrogen atom is: (1) a 0 (2) 4a 0 (3) 2a 0 (4) 8a o
Why magnesium does not impart any colour to Bunsen flame while calcium does
You are given a sample block of an unknown metal. The block displaces 3.24 mL of water and has a mass of 62.5429 g. What is the density of the unknown metal? What is the metal?
Q. a. What is the origin of fossil fuels? b. List three fossil fuels. c. Are fossil fuels a renewable resource? Answer: a. Coal, natural gas and oil. b. Fossil fue
why in f-block element electronic configuration electrons does not enter in 5d orbital (except for La,Gd,Lu)
what is pie ligand acid ? explain with example
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