Period 3 Elements And Oxides Flashcards
1
Q
Sodium is more reactive than magnesium because..
A
Req less energy to remove one electron from na than two from mg
2
Q
How does na react with water what is produced
A
Vigorously
Naoh and hydrogen
3
Q
How does mg react with water what is produced what about steam
A
Slowly
Mgoh2 and hydrogen
Much faster with steam to produce mgo
4
Q
Why do mgo, na2o and al2o3 have high mps
A
As all giant ionic lattices with strong electrostatic forces of attraction
5
Q
Why is mgo higher mp than na2o
A
As it forms 2+ stronger ions
6
Q
SiO2 has a high mp because
A
It is macromolecular
7
Q
P4o10 and so2 have low mps because
A
They are simple molecular and have weak imfs
8
Q
Ionic oxides are
A
Alkaline
9
Q
Covalent oxides are
A
Acidic
