Machine-translated by Google. Questions are authored in English.
Top

Discussion

Glass is made of the mixture of:

  • A.Quartz and mica
  • B.Sand and silicates
  • C.Salt and quartz
  • D.Sand and salt

Answer: B

Glass is made from sand and silicates - silica fused with sodium carbonate and limestone.

The soda lowers silica's melting point from about 1,700°C to a workable temperature, and the lime stops the product dissolving in water. The mixture cools to a rigid but non-crystalline solid.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.