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Calculate the molarmass of a nonelectrolyte that lowers the freezing point of 25.00g of water to -3.9 degrees C when 4.27 g of the substance is dissolved in the water.
Q. What do you mean by electro-magnetic radiation? In the untimely twentieth century scientists accepted the idea that an atom consisted of a massive positively charged nucleus
The allylic carbons are indicated with an asterisk (*).
Q. Explain about heterogeneous mixture? A heterogeneous mixture is one that isn't blended smoothly throughout. Illustrations of heterogeneous mixtures include smoky air and m
The radius of the nucleus is related to the mass number A by : (1 )R= R 0 A 1/2 (2) R= R 0 A (3) R= R 0 A 2
ionic bond has low energy
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
basic structure
Write a conclusion on project "medicines uses''
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