Question

How can glass be a liquid if it's so hard?​

Answer 1

Answer:

To melt a hard glass we approximately need :1,427 and 1,538 degrees Celsius (2,600 and 2,800 degrees Fahrenheit).

Explanation:

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Answer 2

When glass is made, the material (often containing silica) is quickly cooled from its liquid state but does not solidify when its temperature drops below its melting point. At this stage, the material is a supercooled liquid, an intermediate state between liquid and glass.

Explanation:

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