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Classification of polymers - Synthetic polymers
The polymers that are prepared in the laboratories are known as synthetic polymers. These are as well described as manmade polymers. Like PVC nylon, teflon, polyethene, synthetic rubber, bakelite terylene and so on.
Coordination number and geometry Binary compounds are ones with two different elements present. 'Simple' crystal structures can be classed as ones in which each atom (or
Why can classical (Werner) octaedral complexes with no pi-bonding have between 12-22 valence electrons, whereas octahedral complexes with pi-bonding must have 18 electrons?
Group 1- Alkali Metals The elements of group 1 are commonly known as alkali metals after the alkaline properties of their hydroxides such as NaOH. The atoms have the (ns) 1 e
what are the chemical properties of solids???
Is liquid ammonia is solvent?
What is vulcanization The process of vulcanization was discovered by Charles Good Year in 1839. He found that when natural rubber is heated with sulphur, its tensile strength,
Why do zinc hydroxide, aluminium hydroxide and lead (II) hydroxide dissolve in excess aqueous sodium hydroxide?
principle and explanation of radiometric titration
The electronic configuration of element with atomic number 24 is : (1) 1s 2 2s 2 2p 6 3s 2 3p 6 3d 4 4s 2 (2) 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 (3)
why the hydroxides of alkaline earth metals are less basic than alkali metals of the corresponding periods?
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