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symbolic flame
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America
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Cupola Furnace
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Cupola Furnace
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Cupola Furnace
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Man holding chemical heat pad to warm his hands
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Combustion reaction illustration
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MODEL RELEASED Young man lighting a small campfire from tamarisk twigs in Southern Utah USA Fire is the rapid oxidation of a material in the exothe
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Reaction of a gram of marble in acid A gram of marble powder (L) and a gram of marble chips (R) are immersed in a solution of 25cc of dilute hydrochl
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Strike a light A match bursts into flames after being struck This match of the strike anywhere kind consists mainly of phosphorus sesquisulphide
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Potassium reacting with water
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High voltage electrical discharge
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High voltage electrical discharge
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High voltage electrical discharge
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High voltage discharge
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Decomposition of hydrogen peroxide A spatula of manganese dioxide has been added to hydrogen peroxide solution The manganese dioxide catalyses the d
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Iron burning in chlorine gas Iron (Fe) producing flames as it reacts with chlorine gas (Cl2) in a gas jar producing brown fumes of iron (III) chlori
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Thermite reaction demonstration
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Potassium reacting with water Potassium (K) is a highly reactive metallic element It reacts violently with water to produce hydrogen (H2) gas and po
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Strike a light A match bursts into flames after being struck This match of the strike anywhere kind consists mainly of phosphorus sesquisulphide
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Potassium reacting with water Potassium (K) is a highly reactive metallic element It reacts violently with water to produce hydrogen (H2) gas and po
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Sodium reacting with water
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Lithium reacting with water Lithium (Li) is a highly reactive metallic element It reacts violently with water to produce hydrogen (H2) gas and lithi
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Elephants toothpaste experiment
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Elephants toothpaste experiment
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Steel wool burning in air Steel wool is a mat of very fine sharp edged fibres of steel When heated they react with air to form iron oxide in an exo
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Steel wool being heated with a bunsen flame in air Steel wool is a mat of very fine sharp edged fibres of steel When heated they react with air to
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Steel wool being heated with a bunsen flame in air Steel wool is a mat of very fine sharp edged fibres of steel When heated they react with air to
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Copper metal reacting with nitric acid The products of this vigorous reaction are copper (II) nitrate water and nitrogen dioxide gas (brown) The re
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Sodium burning in pure oxygen image 1 of 2 This is an exothermic reaction (it releases heat) as seen by the bright flame here Sodium (Na) is a ver
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Compost thermometer Temperature probe and digital display for monitoring the temperature inside a decomposing pile of compost Compost is a mixture o
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Lithium reacting with water Lithium (Li) is a highly reactive metallic element It reacts violently with water to produce hydrogen (H2) gas and lithi
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Lithium reacting with water
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Lithium reacting with water Lithium (Li) is a highly reactive metallic element It reacts violently with water to produce hydrogen (H2) gas and lithi
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Potassium burning in water
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Potassium burning in water
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Potassium burning in water When water and metallic potassium come into contact they react to form potassium hydroxide and hydrogen gas The reaction
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Sodium burning in water When water and metallic sodium come into contact they react to form sodium hydroxide and hydrogen gas The reaction is exothe
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Sodium burning in water
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Potassium reacting with water Potassium (K) is a highly reactive metallic element On contact with water it undergoes an exothermic (heat-producing)
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Potassium burning in chlorine A piece of potassium metal has been dropped into a flask containing chlorine gas At the bottom of the flask is damp sa
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Sodium burning in chlorine A piece of sodium metal has been dropped into a flask containing chlorine gas At the bottom of the flask is damp sand Th
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Chemical hand warmer
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Metal tray with explosive thermite reaction occurring
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Preparation of ethyne exothermic reaction of water and calcium carbide
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Iron-chlorine reaction
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Organic synthesis Reflux apparatus used to make phenylamine The pear-shaped reaction flask is in a beaker of water to prevent the reaction mixture f
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Nitrobenzene preparation Benzene being added to a mixture of concentrated nitric acid and sulphuric acid When heated one or two of the hydrogen ato
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Steel wool experiment Computer artwork of the equipment needed for the steel wool in vinegar experiment The steel wool is soaked in vinegar for abou
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Concentrated sulphuric acid (H2SO4) being added to water The hydration reaction of sulphuric acid is highly exothermic and can cause the water to boi
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Hydrogenation process artwork
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Magnesium-acid reaction Magnesium reacting with an acid in a test tube This is an example of a metal-acid reaction The reaction proceeds vigorously
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Sodium-chlorine reaction Sodium reacting with chlorine to form sodium chloride (NaCl common salt) A combustion spoon holding a piece of the alkali
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Iron-chlorine reaction
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Combustion of sodium Sodium burning in oxygen in a gas jar This is an exothermic reaction (one that releases heat) as seen by the bright flame here
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Magnesium reacting with acid
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Chemical hand warmer This product consists of a pad containing a supersaturated sodium acetate solution Supersaturation is where a chemical is prese
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Calcium oxide reacting with water Calcium oxide (CaO) reacts vigorously with water releasing a large amount of heat (exothermic) to produce calcium h
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Investigating combustion of hydrogen Image 3 of 3 Experiment to demonstrate the highly reactive nature of hydrogen in air Fireball produced after a
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Iron reacting with sulphur in a test tube This is an addition reaction that produces iron sulphide The equation for this reaction is Fe S --- Fe
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Investigating combustion of hydrogen Image 2 of 3 Experiment to demonstrate the highly reactive nature of hydrogen in air Balloon filled with hydro
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Investigating combustion of hydrogen
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Thermite reaction Apparatus used to demonstrate the extremely violent reaction of thermite when ignited Thermite is a pyrotechnic composition of a m
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Differential scanning calorimetry Close-up of a sample being tested in a differential scanning calorimeter (DSC) DSC is a technique used to measure
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Sodium reacting in water
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Glucose burning in oxygen Glucose on a metal spoon being burnt in a glass gas jar filled with oxygen Glucose is a hydrocarbon and as such reacts wi
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Match bursting into flame
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Organic synthesis Reflux apparatus used to make phenylamine The pear-shaped reaction flask is in a beaker of water to prevent the reaction mixture f
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Organic synthesis Reflux apparatus used to make phenylamine The pear-shaped reaction flask is in a beaker of water to prevent the reaction mixture f
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Copper carbonate reacting with nitric acid This exothermic reaction produces carbon dioxide gas (CO2) and a green precipitate of copper nitrate
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Organic synthesis
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Strike a light A match bursts into flames after being struck This match of the strike anywhere kind consists mainly of phosphorus sesquisulphide
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Adding water to de-hydrated copper sulphate Water being added to a test tube containing de-hydrated (anhydrous) copper (II) sulphate (CuSO4 white)
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Reaction of magnesium carbonate in acid Digital thermometer (top) being used to measure the temperature of a chemical reaction The reading is 23 deg
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Reaction of water and calcium oxide
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Heat of hydration of copper sulphate Water being poured from a test tube onto anhydrous copper (II) sulphate (white) The copper (II) sulphate forms
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Copper oxide and zinc reaction
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Potassium hydroxide pellets absorbing water in a petri dish This has caused the pellets to dissolve Potassium hydroxide is a hygroscopic (absorbs wa
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Metal displacment reaction
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Lithium reacting with water Lithium (Li) is a highly reactive metallic element that floats on water and reacts with it This exothermic (heat- produc
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Copper II sulphate with hazard pictograms
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Copper II sulphate with hazard pictograms
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Copper II sulphate with hazard pictograms
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Copper II sulfate pentahydrate large crystals; CuSO45H2O; Molar mass 249685 gmol Also known as copper sulphate blue vitriol bluestone vitriol of
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Copper II sulfate pentahydrate fine powder; CuSO45H2O; Molar mass 249685 gmol Also known as copper sulphate blue vitriol bluestone vitriol of cop
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Copper II sulfate pentahydrate granular; CuSO45H2O; Molar mass 249685 gmol Also known as copper sulphate blue vitriol bluestone vitriol of copper
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Copper II sulfate anhydrous on watch glass (CuSO4) Molar mass 159609 gmol Also known as copper sulphate blue vitriol bluestone vitriol of copper
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Copper II sulfate anhydrous (CuSO4) Molar mass 159609 gmol Also known as copper sulphate blue vitriol bluestone vitriol of copper Roman vitriol
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Potassium reacting with water in a water bath with phenolphthalein (pink) indicating the presence of an alkali (here potassium hydroxide) Potassium
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Sodium reacting with chlorine to form sodium chloride (NaCl common salt) The flat-bottomed flask is full of the halogen gas chlorine (Cl2) A combus
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Potassium reacting with water
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Exothermic and endothermic chemical reactions illustration The combustion of wood is an exothermic reaction water electrolysis is an endothermic re
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Campfire
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Hot ice molecular model Hot ice is formed when a solution of sodium acetate is cooled below its melting point causing crystallisation This is an e
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Sodium acetate Molecular models of sodium acetate dissolved in water (left) and as a solid (right) When a solution of sodium acetate is cooled below
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Sodium acetate Molecular models of sodium acetate dissolved in water (left) and as a solid (right) When a solution of sodium acetate is cooled below
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Sodium acetate Molecular models of sodium acetate dissolved in water (left) and as a solid (right) When a solution of sodium acetate is cooled below
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Sodium acetate Molecular models of sodium acetate dissolved in water (left) and as a solid (right) When a solution of sodium acetate is cooled below
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Sodium acetate Molecular models of sodium acetate dissolved in water (left) and as a solid (right) When a solution of sodium acetate is cooled below
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Volcano effect by thermal dissociation A sample of ammonium dichromate powder (orange) dissociating by heat When heat is applied to the powder the
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