Inorganic molecules

?
  • Created by: 03Louise
  • Created on: 17-04-19 10:35
Group 1 reaction with oxygen
¬2M(s) + O2(g)->M2O(s)
1 of 16
Group 2 reaction with oxygen
Mg(s)+1/2O2(g)->MgO/ Ba+O2->BaO2
2 of 16
Reaction with water (Group 1)
Metal + Water -> Metal hydroxide + Hydrogen
3 of 16
Reaction with water (Group 2)
Metal + Water -> Metal hydroxide + Hydrogen
4 of 16
Reactivity trends (1+2) and reason
Increases down the group as ionisation energy decreases
5 of 16
• BaSO4: Soluble or Insoluble
Insoluble
6 of 16
Group 2 hydroxides solubility trend
Increases down the group
7 of 16
Group 2 sulfates solubility trend
Decreases down the group
8 of 16
Group 2 carbonates properties
Colourless and insoluble
9 of 16
Group 2 nitrates properties
Colourless and very water soluble
10 of 16
Decomposition of lithiumcarbonate
Li2CO3(s)->Li2O+CO2
11 of 16
Thermal decomposition of group 2 carbonates
MCO3(s)->MO(s)+CO2(g)
12 of 16
Thermal decomposition of group 2 nitrates
M(NO3)2(s)->MO(s)+2NO2(g)+1/2O2(g)
13 of 16
Group 2 trend in thermal stability
Thermal stability increases down the group due to less polarisation
14 of 16
Reason for polarisation trend
The higher the charge density of the cation and the lower the charge density of the anion, the more polarisation occurs.
15 of 16
Affects of polarisation on ionic lattices
Increased polarisation means increased covalent character. This means the ionic lattice is weaker and so decomposes with less heat energy. If the cation and anion both have very high or very low charge density.
16 of 16

Other cards in this set

Card 2

Front

Group 2 reaction with oxygen

Back

Mg(s)+1/2O2(g)->MgO/ Ba+O2->BaO2

Card 3

Front

Reaction with water (Group 1)

Back

Preview of the front of card 3

Card 4

Front

Reaction with water (Group 2)

Back

Preview of the front of card 4

Card 5

Front

Reactivity trends (1+2) and reason

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all The Periodic Table resources »