Question

give the preparation of the glass

Answer 1

Believe it or not, glass is made from liquid sand. You can make glass by heating ordinary sand (which is mostly made of silicon dioxide) until it melts and turns into a liquid. You won't find that happening on your local beach: sand melts at the incredibly high temperature of 1700°C (3090°F
please mark this as brainliest answer

Answer 2

$\underline{PREPARATION\: OF\: GLASS: }$

Raw materials sand , limestone and sodium carbonate in proper proportion are mixed with the cullets finally powdered .
The mixture is fused by eating it in a few runs at a high temperature of about 2073 K the charge melts with chemical reaction taking place .

$\textbt{CaCo3+SiO2 =CaSiO3+Co2 (evolved) \\ \\ Na2Co3+SiO2 = Na2SiO3+ Co2 (evolved )}$

When all the carbon dioxide escapes out of the molten Mass decolourises like manganese dioxide are added to get away with ferrous compounds and carbon glass can be coloured by adding metallic compounds .
Then glass is given shape by boiling molding or pressing glass is then cooled slowly and the process is Annealing.

$be \: brainly$