Misunderstanding of boiling water 🤔

1. When salt is added to the water, the boiling point of water rises.
: Salt enough to use for cooking can raise the boiling point by 0.6°C. It's meaningless at the level of everyday life, right? 😁
 
2. Coldwater boils faster than hot water.
: No. However, it's best not to use hot water from the faucet because it dissolves the pipe's minerals.
 
3. Frozen water or water boiled once boils faster.
: It's too insignificant.
 
4. The water does not boil when looking at the pot.
: I think this is correct. 😠😠😠

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