Chemistry Flashcards
1
Q
Difference between degrees kelvin and Celsius
A
Celsius are on +273 more than kelvins
2
Q
Solid to gas
Gas to solid
A
Sublimation
Deposition, solidification
3
Q
State symbols
A
s-solid
l-liquids
g-gas
aq- aqueous solutions
4
Q
Simple distillation used to separate
A
the solvent from solution
5
Q
Fractional distillation used to separate
A
Liquid from liquids
6
Q
Filtration used to separate
A
liquid from non soluble substances
7
Q
crystallisation used to separate
A
solids from liquids
8
Q
chromatography used to separate
A
layers of substances
9
Q
Groups are
A
from 1 to 0
10
Q
Diatomic molecules
A
Molecules made of pairs of atoms (O2,H2,Cl2,)
11
Q
Group 1
A
Alkali metals
12
Q
Group 7
A
Halogens
13
Q
A
