Period 3 oxides acidic/basic made simple Flashcards
1
Q
What are the differnces in ionic oxides and covalent oxides
A
ionic - alkaline
covalent - acidic
2
Q
How is aluminiium an exception
A
- partially ionic and partially covalently bonded
- insoluble in water
- will react with acids and bases to form salts
- amphoteric
3
Q
What happens when ionic oxides dissolve in water?
A
- oxide ions accept protons from the water molecules to form hydroxide ions
4
Q
How is sodium oxide more alkaline than magnesium oxide
A
it is more soluble
5
Q
Which simple covalent oxides of the non-metal form acidic solution
A
phosphorus and sulfur
6
Q
What is a conjugate base
A
the -ve ion formed from dissociation
7
Q
what are the reaction of the simple covalent oxides with water
A
8
Q
What is unusual about silicon dioxide>
A
- giant covalent strcutre means it is insoluble in water
- will react with bases to form salts so it is classed as acidic
9
Q
WHat are the reactions of aluninium with acids and bases
A
10
Q
What are the reactions of the acidic oxides neutralising bases?
A
