Edexcel IGCSE Chemistry 2 27c Why Alloys Are Harder Than Pure Metals Topic Practice

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Pearson Edexcel International GCSE Chemistry

1 Principles of chemistry

(a) States of matter

(b) Elements, compounds and mixtures

(c) Atomic structure

(d) The Periodic Table

(e) Chemical formulae, equations and calculations

(f) Ionic bonding

(g) Covalent bonding

(h) Metallic bonding

(i) Electrolysis

2 Inorganic chemistry

(a) Group 1 (alkali metals) – lithium, sodium and potassium

(b) Group 7 (halogens) – chlorine, bromine and iodine

(c) Gases in the atmosphere

(d) Reactivity series

(e) Extraction and uses of metals

2.22C Most metals are extracted from ores found in

2.23C How the method of extraction of a metal is

2.24C Comment on a metal extraction process, given

2.25C The uses of aluminium, copper, iron and steel

2.26C An alloy is a mixture of a metal and one or

2.27C Why alloys are harder than pure metals

(f) Acids, alkalis and titrations

(g) Acids, bases and salt preparations

(h) Chemical tests

3 Physical chemistry

(b) Rates of reaction

(c) Reversible reactions and equilibria

4 Organic chemistry

(a) Introduction

(f) Carboxylic acids

(h) Synthetic polymers

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