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Classification of polymers - Thermoplastics
These are the polymers that can be simply softened repeatedly while heated and hardened when cooled along with little change in their characteristics. The intermolecular forces in these types of polymers are intermediate among those of fibres and elastomers. There is no cross binding among the chain. The softening occurs like the polymer chain go much more and more freely due to not presence of cross link. While heated, they make a fluid which can be moulded into any desired shapes and after that cooled to get the desired product and melt
Addition catalysed by base - Aldehydes and Ketones In the existence of a base one equivalent of an alcohol reacts along with only one equivalent of the carbonyl compound. The p
what is the effect of cement refactory on wear and tear
RNA nucleotides Base + Ribose → (Nucleoside) + Phosphoric acid → Nucleotide
Line imperfection : Displacement with a curved boundary makes a mixed dislocation line at the boundary.
sometimes we put a coordinate bond or sometimes we put a double bond in between s and a nonprotonated o atom in the structure of h2so4.is there any diifference in between these two
lABELed diagras
NaH + H2O ->
the decomposition of nh3 on a platinum surface is a zero order reaction. what are the rates of production of n2 and h2 if k+2.5*10-4 mol-1 lsec-1?
An analysis of the state of the Brazilian chemical industry in 1998 revealed that the actually used technologies were transferred in a period where industrial waste generation, tre
chemistry project on p block elements
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