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copper reacts with oxygen to form two oxides es x and y on analysis 1.535 g of x yielded 1.365 g of copper and 1.450 g of y yielded 1.160 g of copper(1) determine the chemical for
Difference between mesomrism and resonance
The de-Broglie wavelength associated with a particle of mass 10 -6 kg moving with a velocity of 10 ms -1 , is: (1) 6.63 x 10 -22 m (2) 6.63 x 10 -29 m
How many unpaired electrons are present in Ni 2+ cation (atomic number = 28): (1) 0 (2) 2 (3) 4 (4) 6 Ans: 2
Explain indoctomeric effect with example of nitro compound?
1. A compound whose empirical formula is CH 3 has a molar mass of 30 g/mol. What is its molecular formula? (3 points) 2. Find the molecular formula for each of the following co
Crystals and glasses Unlike a complex ion or molecule, which is a finite (often small) assembly of atoms, a solid has no fixed shape and size but can add atoms indefinit
The number of electrons in the nucleus of C 12 is (1) 6 (2) 12 (3)0 (4)3 Ans: 0
Drying of Organic Substances- purification of organic compounds Several solids are dried first by pressing them gently in between folds of filter papers. Compounds that neither
Find te emprical formula for the oxide that contains 42.05 g of nitrogen and 95.95 g of oxygen
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