Reacting Metals With Acid

Question 1

Word equation for metal+acid

Answer 1

Metal+acid-> salt + hydrogen

Question 2

What is usually produced when a metal reacts with an acid

Answer 2

Hydrogen gas and salt

Question 3

What metals SHOULD NOT be put in acid

Answer 3

Potassium,sodium,lithium because they are so explosive

Question 4

What would you expect would happen if you react aluminium with water and acid

Answer 4

Aluminium should react with acid and water quite fast as it is just below magnesium on reactivity series. A gas should be given off, especially obvious with acid

Question 5

What ACTUALLY do you observe when aluminium is reacted with acid and water

Answer 5

In acid nothing happens for at least 5 minutes. Then bubbles of gas appeared and the aluminium turned dark grey.

Question 6

Why was this reaction with aluminium surprising

Answer 6

Aluminium is high up on the reactivity series but it took quite a while for the aluminium to react with acid

Question 7

Why does aluminium resist corrosion

Answer 7

Aluminium resists corrosion as it forms a protective oxide layer on its surface and this protects the aluminium

Question 8

What is aluminium widely used for

Answer 8

Aluminium is widely used outside as greenhouse metal frames

Question 9

What is the reactivity series with a mnemonic

Answer 9

Potassium Please
Sodium Send
Lithium Little
Calcium Charlies
Magnesium Monkeys
Aluminium And
Zinc Zebras
Iron In
Tin Tall
Lead Lead
Copper Cages
Silver Securely
Gold Guarded