Testing pH
Neutralisation reaction
Testing pH of soils
Universal indicator paper
pH meter in orange juice
PH test with universal indicator paper
Litmus paper test
Limestone and acid
Litmus pH indicator in acid and basic
Copper (II) oxide reacting with sulphuric acid
Universal indicator papers
Positive ammonia test
Poitive ammonia test
The ammonia test
pH in sodium bicarbonate solution
Phenolphthalein acid-base indicator
Digital pH meter
Test for chlorine
Rates of reaction experiment
Laboratory pH meter
Tin in sulphuric acid
Positive test for chlorine
Red cabbage pH indicator
Lithium chloride burns with a bright crimson flame
Universal indicator colour range
Phenolphthalein a single indicator
Blackcurrant juice indicator
Litmus indicator
Universal indicator
Litmus test strip in hydrochloric acid
Potassium permanganate titration
Iodine clock reaction
Testing for carbon dioxide gas with limewater
Soil pH meter
Blue litmus paper in acid
Sodium chloride burns with a bright yellow flame
Cabbage as pH indicator
Litmus paper
Detecting acid formation
Phenolphthalein at pH9.3
Zinc granules in sulphuric acid
Iron in sulphuric acid
Red cabbage indicator
Reaction rates
Hydrogen chloride preparation
Phenolphthalein indicator
Bromothymol blue indicator
Water samples coloured with beetroot
Investigating pH and neutralisation.
Zinc granules in weak hydrochloric acid
Litmus solution added to acid
Universal indicator paper in rainwater
Marble in acid demonstration
Copper sulphate reactions
Soil settling out of water
Immiscible liquids
Cobalt chloride test for water
Positive cobalt chloride test for water
The cobalt chloride test for water
Methyl orange in acid
Indicator paper in acid
Indicator solution in acid
Hydrochloric acid fumes
Acids react with alkalis producing a salt
Iron and tin in sulphuric acid
Lump of sulphur
Copper (II) sulphate crystals
Benzoic acid precipitate
Equipment used in a titration.
Litmus paper test on a lemon
Litmus paper test on an orange
Ethanal reaction
Copper sulphate dissolving in water
Copper sulphate reaction
Measuring pH
Zinc reacting with sulphuric acid
Titration technique
Decomposition of hydrogen peroxide
Formation of Lead (II) iodide
Transition element salts
Transition elements and their salts
Using a 'makeshift' calorimeter
Test for carbon dioxide
Litmus paper in acid
Zinc/acid reaction
Brass analysis
Magnesium reacting with acid
Comparative reaction of marble in acid
Gaston Plante, French physicist
Effect of pH on action of amylase
Organic synthesis
Methyl orange
Sulphuric acid added to water
Universal indicator test on a lemon
Universal indicator test on an orange
Gold ring in acid
Copper sulphate solutions
Two copper oxide reactions
Daniell electrochemical cell
Magnesium-acid reaction
Bromine reaction
Sugar changed to black carbon
Ligand substitution
Transition element salts in solution
Reading a burette
Measuring jug and bulb pipette
Bottle of sulphuric acid
Precipitates of transition metal salts
Positive test for carbon dioxide
Ammonia test
Magnesium ribbon in ethanoic acid
Cobalt (II) chloride solution
Methyl orange indicator
Reaction of metals in hydrochloric acid
Copper sulphate electrolysis
Zinc chloride and zinc sulphate
Finding moles of iron in a sample
Litmus indicator dropping from pipette into beaker for pH test
Red litmus paper in alkali
Bromide reaction
実験道具
School Science Lesson
Salol crystals on a chilled microscope slide
Copper in hydrochloric acid
Lead in hydrochloric acid
Formation of ammonium chloride
Sulfuric acid molecule
Displacement reaction
Beakers of acidic and basic solutions after litmus indicator has been added. Litmus changes its colour depending on the pH of the solution
Plant acid-base indicator
Measuring acidity
Acid-base indicators
Sulphuric acid
Acid bottles
Reagent bottle of 2M sulfuric acid
Bottle of 1M sulphuric acid
Reagent bottle of sulfuric acid
Checking the quality of tap water with a water test kit
Litmus solution added to alkali
Germany, Bavaria, Munich, Measuring beaker with green liquid for medical research
実験
フラスコ