Yes, shorten it. Sea water boils at higher temperature than more pure water, because of the solved salts in it.
salt
You turn the stove off and start cooking
No, it is a physical change.
gas
Depends on what do you use it for. Generally, yes, you can.
The grammer is wrong here...should be "what change is observed when a leaf was boiled in warm water in an experiment".
No, it is a physical change because the water is the same but just boiled
the person who was cooking boiled eggs or what ever probably leff it in there>
Water boiled to make pasta is a physical change because it is changing its state of matter. It is changing from a liquid to a gas.
In short, NO.If nothing is added to the water, the temperature will not change. And as long as the air pressure doesn't change, the temperature of the boiling water will not either.
Boiling is a physical change.
No, it is a physical change because the water is the same but just boiled