Purities & Impurities Flashcards
1
Q
Define pure substance
A
A pure substance consists of only 1 substance. Only 1.
2
Q
Define impure substance
A
A substance consists of 2 or more substances.
3
Q
The melting & boiling point of a pure substance is
A
a fixed value
4
Q
How the impurity of a substance affects its melting and boiling point?
A
Boiling point increases
Melting point decreases
5
Q
Mixtures and solutions are all impure substances. True/False?
A
True
