Atomic Structure Flashcards
1
Q
What are atoms
A
They are the smallest unit of matter that exists on its own
2
Q
What is a compound
A
A compound is made from 2 or more different elements chemically bonded
3
Q
Iron+Oxygen= Iron+sulphur= Magnesium+Oxygen= Sodium+Chlorine= Lithium+Bromine=
A
Iron oxide Iron sulphide Magnesium oxide Sodium chlorine Lithium bromide
4
Q
What is chromatography
A
A physical method of separating a mixture of soluble substances
5
Q
How do you find the retention factor
A
Rf= Distance travelled by spot(mm)/Distance between baseline and solvent front
6
Q
What is fractional distillation used for
A
It is used to separate crude oil into simpler more useful substances
