Reactions of Metals

Question 1

How can the reactivity of metals be worked out?

Answer 1

By testing them with oxygen, water and dilute acid

Question 2

How are metals held together?

Answer 2

By a type of bonding known as metallic bonding. This can be described as positive metal ions surrounded by a sea of delocalised electrons

Question 3

How can pure oxygen be produced?

Answer 3

By heating up potassium permanganate in a pyrex test tube

Question 4

What happens when a metal reacts with oxygen?

Answer 4

It forms a metal Oxide and gives out energy in the form of heat or light

Question 5

What happens to magnesium when it reacts with oxygen?

Answer 5

Burns with a bright white light

Question 6

What happens to iron when it reacts with oxygen?

Answer 6

Burns bright and sparks

Question 7

What happens when copper reacts with oxygen?

Answer 7

Glows red

Question 8

What happens when aluminium reacts with oxygen?

Answer 8

Sparks

Question 9

What is the general word equation for metals reacting with oxygen?

Answer 9

Metal + Oxygen –> Metal Oxide + Energy

Question 10

What is the general word equation for metals reacting with dilute acid?

Answer 10

Metal + Acid –> Salt + Hydrogen (gas)

Question 11

What metals will react with acid?

Answer 11

Metals above hydrogen in the reactivity series

Question 12

What metals will react with water?

Answer 12

Metals above magnesium in the reactivity series