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Are two How can glass be a liquid if it's so hard? How do I know if something is an acid so I can avoid eating it?

  • Are two
  • How can glass be a liquid if it's so hard?
  • How do I know if something is an acid so I can avoid eating it?

Grade:12th pass

1 Answers

Priyanshu Choudhary
18 Points
3 years ago
Actually glass is a semi solid and its its mel point is not fixed it varies so as temperature increases it melts and behave like liquid 
To avoi acid you should use a red litmus papper  if it changes color from red to blue than it is basic otherwise your food is acid 

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