Period 3 oxides acidic/basic made simple

Question 1

What are the differnces in ionic oxides and covalent oxides

Answer 1

ionic - alkaline

covalent - acidic

Question 2

How is aluminiium an exception

Answer 2

• partially ionic and partially covalently bonded
• insoluble in water
• will react with acids and bases to form salts
• amphoteric

Question 3

What happens when ionic oxides dissolve in water?

Answer 3

• oxide ions accept protons from the water molecules to form hydroxide ions

Question 4

How is sodium oxide more alkaline than magnesium oxide

Answer 4

it is more soluble

Question 5

Which simple covalent oxides of the non-metal form acidic solution

Answer 5

phosphorus and sulfur

Question 6

What is a conjugate base

Answer 6

the -ve ion formed from dissociation

Question 7

what are the reaction of the simple covalent oxides with water

Answer 7

Question 8

What is unusual about silicon dioxide>

Answer 8

• giant covalent strcutre means it is insoluble in water
• will react with bases to form salts so it is classed as acidic

Question 9

WHat are the reactions of aluninium with acids and bases

Answer 9

Question 10

What are the reactions of the acidic oxides neutralising bases?

Answer 10