Puzzle: A man stands on a road in Iowa looking up at the night sky. On one night he sees the constellation Orion. But on another
1 answer:
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Answer: solid
Explanation: Chemical reactions are those which involve rearrangement of atoms.
Chemical changes are accompanied by following changes:
1) Absorption or release of heat
2) Change in color
3) Formation of gas bubbles
4) Formation of a solid product called as precipitate
Example of formation of precipitate or solid in chemical reaction:
