3 why is that ? i Glass can be made from Sand but sand cannot be made from gas glass???
Answers
Answer:
Now you see it, now you don't. Glass is a bit of a riddle. It's hard enough to protect us, but it shatters with incredible ease. It's made from opaque sand, yet it's completely transparent. And, perhaps most surprisingly of all, it behaves like a solid material... but it's also a sort of weird liquid in disguise! You can find glass wherever you look: most rooms in your home will have a glass window and, if not that, perhaps a glass mirror... or a glass lightbulb. Glass is one of the world's oldest and most versatile human-created materials. Let's find out some more about it.
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Answer:
Sand can't be made again from glass, because the method of manufacturing glass is irreversible.
Explanation:
- To make glass, the sand, limestone and soda are mixed and heated to 1400°C. Unlike opaque materials like metals, the electrons within the resulting compound do not have much freedom within its crystalline structure, and thus aren't very effective at absorbing light energy.
- Finely crushed glass is actually a very pure form of sand. Technically, natural sand is made of quartz crystals of silicon dioxide, whereas glass is that the non-crystalline, amorphous kind of silicon dioxide.
- But when it's ground down enough, the difference isn’t obvious. Crushed glass is sold as an alternate to sand for pool filters – after all , recycled crushed glass has been considered as a partial replacement for the sand on variety of Florida’s eroding beaches.
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