some basic concepts of chemistry
an atom of an element is 10.1 times heavier than the mass of a carbon atom.What is its mass in amu?
37% weight of HCl and density is 1.1g/ml. find molarity of HCl
list and identify differences between the major classes of hydrocarbons
Explain DNA organic in brief?
Give me answer of this question. The volume of water to be added to 100cm3 of 0.5 N N H2SO4 to get decinormal concentration is : (a) 400 cm3 (b) 500cm3 (c) 450cm3 (d)100cm3
Choose the right answer from following.The relative lowering of the vapour pressure is equal to the ratio between the number of: (a) Solute moleules and solvent molecules (b) Solute molecules and the total molecules in the solution (c) Solvent molecules and the tota
How can you decide if there is a dipole moment or not?
Show the organic structure of cetearyl alcohol and state what the organic family is? Briefly state it.
Give me answer of this question. If 5.0gm of BaCl2 is present in 106 gm solution, the concentration is: (a)1 ppm (b)5 ppm (c)50 ppm (d)1000 ppm
introduction for polyhalogen compound
comparison of biodegradable and non-biodegradable polymers
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