Potassium reacting with water
Calcium reacting with water, later stage
Magnesium-acid reaction
Burning lithium
Limestone-acid reaction
Tin in sulphuric acid
Calcium reacting with water, initial stage
Sodium reacting with water
Magnesium burning in air
Container of the chemical element potassium
Lithium chloride burns with a bright crimson flame
Sodium chloride burns with a bright yellow flame
Sodium reacting with ethanol
Starch content of leaves
Potassium burning
Calcium reacting with water
Iron burning in chlorine gas
Hydrogen emission tube
Copper-silver metal displacement reaction
Soxhlet extractor
Measuring jug and bulb pipette
Potassium flame test
Battery and steel wool
Lithium reacting with water
Potassium permanganate titration
Using a 'makeshift' calorimeter
Sodium burning in water
Sodium burning in chlorine
Potassium chromate and silver nitrate
Iron (III) chloride solution
Flame test on potassium
Potassium dichromate
Container of the chemical element sodium
Cut apple
Formation of Lead (II) iodide
Iron in sulphuric acid
Comparative reaction of marble in acid
Aluminium reacting with iodine
Iron reacting with chlorine
Burning zinc
Hydrometer
Magnesium reacting with acid
Sodium reacting with chlorine
Potassium burning in chlorine
Magnesium reacting with steam
Potassium reacting with chlorine gas
Testing sulphur for conductivity
Reaction rates
Cobalt (II) chloride solution
Copper (II) chloride solution
Salol crystals on a microscope slide
Salol crystals on a chilled microscope slide
De-colourised bromine water
Methyl orange in acid
Silver nitrate test for chlorides
Sodium burning in oxygen, post-reaction
Heating sodium chloride
Zinc granules in sulphuric acid
Zinc granules in weak hydrochloric acid
Universal indicator
pH in sodium bicarbonate solution
Digital colorimeter
Digital colorimeter with cuvettes
Digital colorimeters with cuvettes
pH meter in orange juice
Titrating a reactant from a burette
Loudspeaker and microphone
Making a reactant solution
Transferring a reactant into a flask
Phenolphthalein a single indicator
Iron reacting with sulphur
Model of cyclopentane molecule
Model of a butane molecule
Model of butane molecule
Model of cyclohexene molecule
Model of ethane molecule
Model of cyclopropane molecule
L-(+) alanine, molecular model
Butanol, molecular model
Iron (II) hydroxide precipitation
Iron (III) hydroxide precipitation
Burning copper
Titration technique
Complete combustion experiment
Copper sulphate electrolysis
Potentiometer jockey
Sodium burning in air
Pouring hydrochloric acid onto zinc nuggets in petri dish
Iodine clock reaction
Sodium chloride, molecular model
Hydrogen chloride preparation
Salol cooling rapidly to form crystals
Measuring change of mass in a reaction
Universal indicator colour range
Investigating combustion of hydrogen
Metals
Container of the chemical element selenium
Potassium burning in water
Iron (II) chloride solution
Transition element salts in solution
Bromine
Magnesium ribbon in ethanoic acid
Ethanal and Brady's reagent
Candle flame
Positive ammonia test
Poitive ammonia test
The ammonia test
Magnesium burning in oxygen
Metal tray with explosive thermite
Flame test for lithium.
Burnt matchstick and smoke
Matchstick on fire
Precipitates of transition metal salts
Reading a burette
Ammonia test
Reading a burette of permanganate
Copper (II) sulphate crystals
Sulfur
Iron and sulphur
Sodium burning in oxygen
Phosphorus chloride reacting with acid
Alkane or alkene test
Decomposition of hydrogen peroxide
Lead iodide precipitate
Silver nitrate test for iodides
Copper formed by oxide reduction
Dilute hydrochloric acid reactions
試験管
Hydrochloric acid fumes