The answer is "A. a pure substance can be separated by chemical means, while a mixture can be separated by physical means". A pure substance only has one type of substance, whereas a mixture has more than one. A pure substance therefore, can only be separated chemically, because it is not two things mixed together, whereas a mixture can be separated physically because there are multiple substances.
There are 4 lone pairs of electrons present in the carbon dioxide molecule
Answer:
6.0 x 10 to the power of 23
Answer:
A condensate is a liquid formed by condensation.
Explanation:
Answer:
the answer is number 1
Explanation:
because when you make toast you burn it you toast it and there is no way to undo that.
