Iron sulphide in hydrochloric acid
Sulphur and iron in hydrochloric acid
Sulphur in hydrochloric acid
Iron in hydrochloric acid
Iron reacting with hydrochloric acid
Copper in hydrochloric acid
Lead in hydrochloric acid
Zinc reacting with hydrochloric acid
Magnesium carbonate in hydrochloric acid
Calcium reacting with hydrochloric acid
Magnesium reacting with hydrochloric acid
Bottle of hydrochloric acid
Gold ring in acid
Iron sulphide compound
Reaction rate demonstration
Litmus test strip in hydrochloric acid
Zinc granules in weak hydrochloric acid
Zinc/acid reaction
Non-magnetic iron sulphide
Iron pyrite crystals
Hydrochloric acid fumes
Acid/salt reaction
Hydrochloric acid
Bottle of dilute hydrochloric acid
Ethanal reaction
Copper sulphate reactions
Metals in acid
Iron and sulfur reaction
Copper sulphate reaction
Investigating pH and neutralisation.
Positive ammonia test
The ammonia test
Limestone and acid
Reagent bottle of 36% hydrochloric acid
Reagent bottle of hydrochloric acid CP
Iron pyrite
Detecting acid formation
Reaction of metals in hydrochloric acid
Poitive ammonia test
Comparative reaction of marble in acid
Ligand substitution
Phosphorus chloride reacting with acid
Dilute hydrochloric acid reactions
Eggshell reacting with hydrochloric acid
Magnesium reacting with acid
Galenite in pyrite
Zinc reacting with sulphuric acid
Making hydrogen gas
Iron and tin in sulphuric acid
Reagent bottle of 4.0M hydrochloric acid
Lit splint test for hydrogen gas
Nugget of Fool's Gold, iron pyrites
Cabbage as pH indicator
Pyrite
Copper (II) reaction
Comparison between acid reactions
Organic synthesis
Litmus paper test
Pouring hydrochloric acid onto zinc nuggets in petri dish
Magnesium reacting in acid
Common acids and bases
Iron pyrites crystals (fool's gold)
Quartz and pyrite
Ammonium chloride formation
Iron pyrites
Banded iron ore
Phosphorus pentachloride hydrolysis
Acid bottles
Pyritised Ammonite Fossil
Octahedral crystals of Pyrite
Sample of pyrite
Orpiment on pyrite
Limestone reacting with acid
Formation of ammonium chloride
Ammonium chloride
Pyrite mineral stone
Two copper oxide reactions
Rates of reaction experiment
Chalcopyrite specimen
Arsenopyrite crystals
Iron in sulphuric acid
Displacement reaction
Testing pH
Lithium chloride burns with a bright crimson flame
Sodium chloride burns with a bright yellow flame
Extracting tinder from tinder fungus
Pyrite crystals
Trilobite triarthus eatoni legs preserved
Marcasite crystals on chalk groundmass
Tin in sulphuric acid
Digestion experiment
Iron pyrite crystal
Brass analysis
Fool's Gold, iron pyrites crystals
Acyl chloride reaction with water
黄鉄鉱
Iron pyrite, light micrograph
Cubic pyrite crystals
Marcasite stepped crystals
Pyrite with Hematite, Italy
Pyrite Sun
Pyrite crystals, Spain
Marcasite, New York, USA
Pyrite Stalagtite
Quartz and Pyrite crystals
Marcasite.
Marcasite
Pyrites Ammonite spiral Calcite crystals
Andelusite crystals in slate
Lapis lazuli
A fossil crinoid, Pentacrinites fossils
Fossil ammonite
Ammonite fossil
Pyritized ammonite
Pyrite bead necklace
Slate with pyrite
Finding moles of iron in a sample
Copper ion solutions
Testing for carbon dioxide gas with limewater
Marble reacting with an acid
Reaction of magnesium in acid
Reaction of calcium in acid
Reaction of sodium carbonate in acid
Nickel II nitrate 6 water on watch glass
Bottle of sulphuric acid
Hydrogen halides molecule
Container of the food additive E507
Marcasite in chalk groundmass, close-up
Digestion experiment.
Pyrite crystals in their host rock
Hydrothermal quartz vein
Chalcopyrite mineral
Oxynoticeras ammonite fossil
Copper (II) oxide reacting with sulphuric acid
Sample of the mineral pyrite.
Polished lapis lazuli stone
Galenite and marcasite
Ammonite, pyritized
Jarosite on rock
Iridescent pyrite in a clay nodule
Deformation structure in schist
Marcasite mineral
Lapis lazuli crystals
Marcasite bracelet
Arsenopyrite with siderite and pyrite crystals
Ranitidine peptic ulcer disease drug, molecular model
Acids and alkalis
Leopold Gmelin
Hydrogen chloride preparation
Measuring reaction rate