pure substances and impurities Flashcards
1
Q
what is a pure substance
A
something that has just particles of itself, and has no other substances mixed with it
2
Q
what is an impurity
A
a unwanted substance mixed with the substance you want
3
Q
if you have two substances that you willingly mixed together, is that an impurity
A
no, it is just not pure
4
Q
what is a way to see if something is pure
A
check the boiling, melting or/and freezing point, if the temperature is higher/lower, it is impure
5
Q
melting point
A
the temperature in witch something melts
6
Q
boiling point
A
the temperature in witch something boils
