amorphous solid substances

Amorphous Solids - Substances whose particles do not posses a regular orderly arrangement but have short range order. When amorphous solids are heated they become crystalline at some temperature. Properties of amorphous solids ar..

Substances whose particles do not posses a regular orderly arrangement but have short range order. When amorphous solids are heated they become crystalline at some temperature. Properties of amorphous solids are: They do not have sharp melting point..

Solids with particles not arranged in a regular fashion. They have only short range order or even the particles are disordered in some case..

Crystalline and Amorphous Solids - Solids have definite shape and volume because the average distance between the molecules or atoms remain constant and do not change with time. The arrangement of molecules inside a solid differ from one to another. This resu..

Solids have definite shape and volume because the average distance between the molecules or atoms remain constant and do not change with time. The arrangement of molecules inside a solid differ from one to anothe..

. It is the hardest natural substance known. It has high relative density (about 3.5). It is transparent and has high refractive index (2.45). It is non-conductor of heat and electricity. It burns in air at 900C to give CO 2 . It occurs as octahedral crystals. It is insoluble in all solve..

Amorphous Carbon - Wood Charcoal - Wood charcoal is obtained by the destructive distillation of wood. The chief products formed are wood charcoal, wood tar, pyroligneous acid and wood gas (Fig.10.6). However, if wood charcoal is heated strongly, most of the air gets expelled and then if i..

Molecular substance having nearly spherical molecules have closed packed arrangements. Examples: Solid H 2 has hcp structure, while solid CH 4 , HCl, H 2 S have ccp structu..

Anhydrous calcium chloride CaCl 2 Ferric chloride FeCl 3 Magnesium chloride MgCl 2 Calcium nitrate Ca(NO 3 ) 2 Solid sodium hydroxide NaOH Copper nitrate Cu(NO 3 ) 2 Solid potassium hydroxide KOH Zinc nitrate Zn(NO 3 ) 2 ..

Concentrated sulphuric acid H 2 SO 4 Magnesium chloride MgCl 2 Anhydrous calcium chloride CaCl 2 Ferric Chloride FeCl 3 Calcium oxide CaO Phosphorus pentoxide P 4 O 10 Solid Sodium hydroxide NaOH Calcium nitrate Ca(NO 3 ) 2 Solidh..