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Explain the following observations:
(i) Generally there is an increase in density of elements from titanium (Z = 22) to copper (z =29) in the first series of transition elements.
(ii) Transition elements and their compounds are generally found to be good catalysts in chemical reactions.
A tank contains 50 gal of a solution of NaCl in water (20% wt). To wash the tank, we supply fresh water at 10 gal/min and drain the tank at the constant rate of 10 gal/min. Determi
A hydrocarbon z with molecular mass 78 on combustion gave 3.384g of carbon (IV) oxide and 0.693g of water. Determine the molecular formula of Z and draw its structure. [H=1, C=12,
what are the different types of colloidal system?
A sample of water collected in the field had a pH of 6.8. By the time it was analyzed in the lab, the pH had decreased to 6.0. Give a possible explanation.
Iodine is used as an antiseptic treatment, but it can be poisonous if taken internally! Be sure that the solution is handled with care, and avoid all direct contact with the soluti
Q. What is the Structure of diborane? The structure of diborane is of great interest since it cannot be explained on the basis of simple theories of bonding. As mentioned earli
200.0 M&Ms mass out at 175 grams. How many tons of M&Ms are there in one mole?
Derive Nerst equation for both anode and cathode.
sho me the s p d f orbitals shape
what are the standards of purity
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