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Cast iron is iron or a ferrous alloy which has been heated until it liquefies, and is then poured into a mould to solidify. It is usually made from pig iron. The alloy constituents affect its colour when fractured: white cast iron has carbide impurities which allow cracks to pass straight through. Grey cast iron has graphitic flakes which deflect a passing crack and initiate countless new cracks as the material breaks.
Silver has a density of 10.5gcm -3 . The no. of silver atoms on a surface area of 10-12m 2 can be expressed in scientific notation aas y x 10x.The value of x is ..? Ans) d = m
Explain Hammonds postulate Because the transition states of the two reactions should resemble the respective carbocation intermediates (Hammond's postulate), study the structur
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list the advantage and disadvantage teaching methods in chemistry
H2,Li2,B2 each has bond order equal to 1 , the order of stability is
1. Enter the symbol of a sodium ion, Na+, followed by the formula of a sulfate ion, SO42- ..Express your answers as ions separated by a comma. 2.Enter the expression 147N+a, wher
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Anomolous behaviour of beryllium
what are postulates of rate theory?
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