Reactivity series of metals
Memorise the reactivity series of metals without memorising
Metals and alloys: Materials that changed history
Uncover the properties and reactivity of metals that matter to the story of humankind
Speeding up reactions with catalysts and enzymes
Catalyse your revision on catalysts and enzymes
Experiments on speed of reaction: how to interpret graphs
Gain a good grasp of graphs
5 ways to increase reaction speed
Speed read the five factors that influence reaction speed
How to find oxidation state?
Learn how to state the oxidation state
Redox reactions: Oxidation and reduction
Four lenses for a new way to look at chemical reactions
Stoichiometry: Percentage yield & percentage purity
Be 100% sure about how to calculate percentage yield and percentage purity
Enthalpy change of reactions
Exo is hot, endo-ure the cold
Preparation of salts
The three methods to prepare pure samples of solid salt
Properties & reactions of alkali & bases
Time to get basic, and maybe salty
How to write ionic equations
Peer into the underwater drama of aqueous reactions with ionic equations
Reactions of acids
Acids are dangerous and corrosive, as their hydrogen ions are unlocked to wreak havoc. Learn how they react with metals, carbonates, and…
Test for ions in qualitative analysis
The definitive guide to qualitative analysis
Electrolysis guidebook
Terms used in electrolysis and their meanings
Definition and properties of acids
Learn about the defining property of acids: acids dissociate in water to produce hydrogen ions, either partially or fully, depending on…
Electrolysis of molten compounds
Describing electrolysis of molten ionic compounds
What is electrolysis?
Don't be shocked, but molten ionic compounds don't just stop at conducting electricity. They use it for chemical reaction!
Percentage mass & empirical formula
Calculate how each element in a compound is pulling its weight, and use this to find the chemical formula empirically