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Dark blue copper-ammonia complex
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Red litmus paper turning blue in ammonia
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Red litmus paper turned blue by ammonia
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Add sodium hydroxide solution to hydrochloric acid to neutralize it
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After adding BTB solution to hydrochloric acid add sodium hydroxide solution Alkaline
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Corrosion test Nails being tested for corrosion (blue spots) They are in a petri dish containing agar (brown) A chemical indicator called ferroxyl
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Actinolite crystals (calcium magnesium iron silicate hydroxide) This mineral is the intermediate member of a magnesium-iron series of minerals with d
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Investigating pH and neutralisation
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Sodium hydroxide added to iron II sulfate The precipitate of this transition metal ion is a dark green A precipitate may be formed when a few drops
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Metal precipitates Four test tubes showing the colours of metal ion solutions and the formation of the solid precipitates of the metal hydroxides Fr
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Biuret reagent test for protein Add the blue Biuret solution to test tubes of protein solution at concentrations 00 01 04 2 and 10 mgdm3 The s
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Cobalt hydroxide precipitate Experiment showing the formation of a precipitate of cobalt hydroxide salt When sodium hydroxide (NaOH clear) is added
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Sodium hydroxide and nickel sulphate
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Sodium hydroxide and copper II sulphate Test tube containing sodium hydroxide solution reacting with copper II sulphate This reaction produces a blu
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Sodium hydroxide and iron II sulphate Test tube containing sodium hydroxide solution reacting with iron II sulphate This reaction produces a dark gr
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Sodium hydroxide and transition metals Test tubes containing sodium hydroxide solution reacting with various transition metal salts From left to rig
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Sodium hydroxide and iron III sulphate Test tube containing sodium hydroxide solution reacting with iron III sulphate This reaction produces a dark
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Sodium hydroxide molecule
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Potassium hydroxide Molecular model of the inorganic compound potassium hydroxide (KOH) used as a precursor to most soft and liquid soaps as well as
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Metal hydroxides image 2 of 2 formed from the addition of sodium hydroxide (NaOH) to solutions containing metal ions From left to right are precipi
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Electrolysis of sodium chloride solution Apparatus used to pass a current through sodium chloride (table salt) dissolved in water Passing an electri
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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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Aluminium in excess sodium hydroxide When sodium hydroxide is added to a solution of aluminium sulphate a white precipitate of aluminium hydroxide f
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Aluminium precipitate in sodium hydroxide When sodium hydroxide is added to a solution of aluminium sulphate a white precipitate of aluminium hydrox
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Measuring pH
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Metal hydroxides formed by the addition of sodium hydroxide (NaOH) to solutions of metal ions From left are precipitates of iron (Fe2) (Fe3) copp
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Testing for carbon dioxide production
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Forms of copper ore Selection of four types of copper ore clockwise from lower left native copper bornite azurite and a mixture of malachite and
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Talc crystal structure
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Sodium hydroxide
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Bases Jars containing calcium carbonate (Ca2CO3) copper oxide (CuO) and sodium hydroxide (NaOH) These compounds are classified as bases because th
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Cobalt hydroxide precipitate
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Hydroxide precipitates Two test tubes containing from the left copper (II) and iron (II) Both test tubes have had ammonia added to them This has
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Hydroxide precipitates Three test tubes containing from the left copper (II) iron (II) and cobalt (II) All three test tubes have had sodium hydro
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Hydroxide precipitates Three test tubes containing from the left chromium (III) iron (III) and aluminium (III) All three test tubes have had sodi
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Biuret test for protein Test tubes containing negative (left) and positive (right) tests for proteins using biuret reagent The biuret reagent compri
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Haloalkane test
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Haloalkane test Image 7 of 7 Adding concentrated ammonia to test tubes containing silver halide precipitate The precipitates are a result of using
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Haloalkane test Image 6 of 7 Adding concentrated ammonia to test tubes containing silver halide precipitate The precipitates are a result of using
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Haloalkane test Image 5 of 7 Adding dilute ammonia to test tubes containing silver halide precipitate The precipitates are a result of using silver
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Haloalkane test
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Haloalkane test Image 3 of 7 Adding silver nitrate to test tubes containing haloalkane and sodium hydroxide to determine the halogen present Haloal
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Haloalkane test
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Chromium hydroxide precipitate
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Metal ion solutions image 1 of 2 From left to right are solutions of calcium (Ca) magnesium (Mg) copper (Cu) iron (II) (Fe2) iron (III) (Fe3)
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Cobalt hydroxide precipitate formed by adding sodium hydroxide (NaOH) to a solution containing cobalt ions Cobalt hydroxide (Co(OH)2) is precipitated
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Silver hydroxide precipitate formed by adding sodium hydroxide (NaOH) to a solution containing silver ions Silver hydroxide (AgOH) is precipitated ou
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Aluminium hydroxide precipitate formed by adding sodium hydroxide (NaOH) to a solution containing aluminium ions Aluminium hydroxide (Al(OH)3) is pre
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Nickel hydroxide precipitate formed by adding sodium hydroxide (NaOH) to a solution containing nickel ions Nickel hydroxide (Ni(OH)2) is precipitated
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Iron (II) hydroxide precipitate
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Manganese hydroxide precipitate
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Lead hydroxide precipitate formed by adding sodium hydroxide (NaOH) to a solution containing lead ions Lead hydroxide (Pb(OH)2) is precipitated out o
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Zinc hydroxide precipitate
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Sodium hydroxide molecular model Caustic metallic base mostly used as a strong chemical base in the production of pulp and paper textiles drinking
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Potassium hydroxide molecular model Inorganic compound which is the precursor to most soft and liquid soaps as well as of numerous potassium-contain
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Iron (III) hydroxide precipitate formed by adding sodium hydroxide (NaOH) to a solution containing iron (III) ions Iron (III) hydroxide (Fe(OH)3) is
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Sodium hydroxide molecule
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Potassium hydroxide molecular model Inorganic compound which is the precursor to most soft and liquid soaps as well as of numerous potassium-contain
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Sodium hydroxide molecular model Caustic metallic base mostly used as a strong chemical base in the production of pulp and paper textiles drinking
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Potassium hydroxide molecular model Inorganic compound which is the precursor to most soft and liquid soaps as well as of numerous potassium-contain
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Sodium hydroxide molecular model Caustic metallic base mostly used as a strong chemical base in the production of pulp and paper textiles drinking
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Potassium hydroxide molecular model Inorganic compound which is the precursor to most soft and liquid soaps as well as of numerous potassium-contain
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Sodium hydroxide (lye caustic soda) chemical structure Stylized skeletal formula (chemical structure) Atoms are shown as color-coded circles with
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Sodium hydroxide chemical structure illustration
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Sodium hydroxide chemical structure illustration
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Copper hydroxide precipitate formed by adding sodium hydroxide (NaOH) to a solution containing copper ions Copper hydroxide (Cu(OH)2) is precipitated
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Sodium hydroxide chemical structure illustration
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Sodium hydroxide (lye caustic soda) chemical structure Stylized skeletal formula (chemical structure) Atoms are shown as color-coded circles conne
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Sodium hydroxide chemical structure illustration
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Sodium hydroxide chemical structure illustration
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Sodium hydroxide chemical structure illustration
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Hydroxide anion chemical structure Stylized skeletal formula (chemical structure) atoms are shown as color-coded circles with thick black outlines
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Hydroxide anion chemical structure illustration
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Hydroxide anion chemical structure White skeletal formula on dark teal gradient background with hexagonal pattern
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Hydroxide anion chemical structure Blue skeletal formula on white background
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Calcium hydroxide precipitate formed by adding sodium hydroxide (NaOH) to a solution containing calicum ions Calcium hydroxide (Ca(OH)2) is precipita
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Iron (III) hydroxide precipitation Test tube containing sodium hydroxide solution reacting with iron (III) chloride This reaction produces an orange
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Iron (II) hydroxide precipitation Test tube containing sodium hydroxide solution reacting with iron (II) sulphate This reaction produces a dark gree
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Magnesium hydroxide precipitate formed by adding sodium hydroxide (NaOH) to a solution containing magnesium ions Magnesium hydroxide (Mg(OH)2) is pre
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Acid and alkali Bottles of sulphuric acid and sodium hydroxide or caustic soda (an alkali or base) solutions Acids are substances which produce an e
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Conductivity test Assorted solutions being tested for electrical conductivity All the bulbs are connected to batteries (out of frame to the right) a
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