Course content

57 lessons

7.1-7.3 · Acids, bases and salts

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4.1-4.2, 6.4 · Redox and electrolysis

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5.1, 6.1-6.3 · Energy changes and rates of reaction

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A reaction that makes the beaker cold

Measuring the energy released

Bonds broken against bonds made

Why a gas and air mixture needs a spark

A reaction needs a collision

Ten degrees roughly doubles the rate

Concentration changes the rate, not the yield

Reading a rate off a graph

A catalyst is not used up

The crystal that remembers water

A colour that stops changing

Run the sulfur trioxide converter

One exam question, end to end

Quick revision: energy changes and rates of reaction

8.1-8.5, 9.1-9.6 · The periodic table in use: groups, transition metals and metals

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5.1, 6.1-6.3 · Energy changes and rates of reactionLesson 5 of 16

Bonds broken against bonds made

Decide the sign before you calculate it, then work it from three bond energies.

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