Reactions

Question 1

Describe two differences between a metal oxide and a non-metal oxide

Answer 1

Metal oxide - most are solid, most are bases

Non-metal oxide - most are gases, most are acids

Question 2

Name two reactants in the reaction of sulphur with oxygen

Answer 2

Zinc and oxygen

Question 3

State what an oxidation is

Answer 3

A substance reacts with oxygen creating one or more oxides.

Question 4

Name the products in the reaction of a metal with an acid

Answer 4

Salt+hydrogen

Question 5

Name the salt made when magnesium reacts with sulphuric acid

Answer 5

Magnesium sulphate+hydrogen

Question 6

State what an oxidation reaction is

Answer 6

When a substance combines with oxygen

Question 7

Name two metals that react vigorously with oxygen in the air

Answer 7

Zinc

Magnesium

Question 8

Name the products of the reaction of calcium with water

Answer 8

Calcium hydroxide+hydrogen

Question 9

Sodium reacts with water to make sodium hydroxide and hydrogen. Write a word equation for the reaction

Answer 9

Sodium+water = sodium hydroxide + hydrogen

Question 10

Name one metal that reacts with steam but not cold water

Answer 10

Magnesium

Question 11

State what a displacement reaction is

Answer 11

When a substance is more reactive it displace the other substance in the reaction

Question 12

State why copper cannot displace magnesium from magnesium sulphate solution

Answer 12

Because copper is less reactive.