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Modification de couleur Photos ❘ Science Photo Library

Potassium dichromate test for alcohols
12644191 - Potassium dichromate test for alcohols
Phenolphthalein acid-base indicator
12644188 - Phenolphthalein acid-base indicator
Cobalt chloride test for water
11732063 - Cobalt chloride test for water
The cobalt chloride test for water
11732103 - The cobalt chloride test for water
Universal indicator paper
11703661 - Universal indicator paper
Universal indicator paper
11703658 - Universal indicator paper
Universal indicator paper
11703657 - Universal indicator paper
Steel nail heated in a Bunsen flame
11676056 - Steel nail heated in a Bunsen flame
Positive cobalt chloride test for water
11732091 - Positive cobalt chloride test for water
Universal indicator paper
11703660 - Universal indicator paper
Universal indicator paper
11703659 - Universal indicator paper
Benedict's test for sugars
11641578 - Benedict's test for sugars
pH test
11712663 - pH test
Acid reflux experiment
11613366 - Acid reflux experiment
Benedict's test for sugars
11641577 - Benedict's test for sugars
Acid reflux experiment
11613367 - Acid reflux experiment
Acid-base titration
11641569 - Acid-base titration
Benedict's test for sugars
11641579 - Benedict's test for sugars
Acid reflux experiment
11613368 - Acid reflux experiment
Iodine starch test
11618418 - Iodine starch test
Complex metal ions,colour changes
11618413 - Complex metal ions,colour changes
Red cabbage juice indicator,pH range
12033264 - Red cabbage juice indicator,pH range
Frying pan cooking sensor
11588722 - Frying pan cooking sensor
Alkene and bromine water
11589676 - Alkene and bromine water
Autumn leaves on snow
11633589 - Autumn leaves on snow
Colour change due to ligand displacement
11519826 - Colour change due to ligand displacement
Genetically modified carnivorous plants
11591531 - Genetically modified carnivorous plants
Colour changes due to ligand exchange
11519827 - Colour changes due to ligand exchange
Tsetse fly larva melanization
12967652 - Tsetse fly larva melanization
Thermal conduction experiment
11726028 - Thermal conduction experiment
Thermal conduction experiment
11726027 - Thermal conduction experiment
Cobalt chloride test paper
12635820 - Cobalt chloride test paper
H2O2 reduces KMnO4
12629683 - H2O2 reduces KMnO4
Cobalt chloride test paper
12635818 - Cobalt chloride test paper
Red cabbage pH indicator
11727042 - Red cabbage pH indicator
Bromine test for alkenes
12644198 - Bromine test for alkenes
Red cabbage pH indicator
11708377 - Red cabbage pH indicator
Titration experiment
11613830 - Titration experiment
H2O2 reduces KMnO4, 5 of 5
12629688 - H2O2 reduces KMnO4, 5 of 5
H2O2 reduces KMnO4, 3 of 5
12629686 - H2O2 reduces KMnO4, 3 of 5
Litmus paper
11726043 - Litmus paper
Cupping marks from cupping therapy
11730129 - Cupping marks from cupping therapy
Water added to anhydrous copper sulphate
11707985 - Water added to anhydrous copper sulphate
Titration experiment
11613832 - Titration experiment
Cuttlefish chromatophore research
12053082 - Cuttlefish chromatophore research
H2O2 reduces KMnO4, 4 of 5
12629687 - H2O2 reduces KMnO4, 4 of 5
Red litmus paper in alkali
11726045 - Red litmus paper in alkali
Red cabbage pH indicator
11708378 - Red cabbage pH indicator
Blue litmus paper in acid
11726040 - Blue litmus paper in acid
Red cabbage pH indicator
11708379 - Red cabbage pH indicator
Cobalt chloride test paper
12635819 - Cobalt chloride test paper
Iodine test for starch
11520023 - Iodine test for starch
Litmus paper
11726042 - Litmus paper
Testing pH of soils
11726050 - Testing pH of soils
Cobalt chloride test paper
12635821 - Cobalt chloride test paper
H2O2 reduces KMnO4, 2 of 5
12629685 - H2O2 reduces KMnO4, 2 of 5
H2O2 reduces KMnO4, 1 of 5
12629684 - H2O2 reduces KMnO4, 1 of 5
Red cabbage pH indicator
11727043 - Red cabbage pH indicator
Detecting water
11707984 - Detecting water
MRSA bacteria culture
11689225 - MRSA bacteria culture
Blue litmus paper in acid
11726041 - Blue litmus paper in acid
Red litmus paper in alkali
11726044 - Red litmus paper in alkali
Thermal conduction experiment
11726029 - Thermal conduction experiment
Cuttlefish chromatophore research
12053083 - Cuttlefish chromatophore research
Cobalt chloride equilibrium
11672756 - Cobalt chloride equilibrium
Bromine test for alkene
11520030 - Bromine test for alkene
Fehling's test for sugars
11520025 - Fehling's test for sugars
Titration experiment
11613839 - Titration experiment
Copper and acid reactions
11612199 - Copper and acid reactions
Titration experiment
11520031 - Titration experiment
Iodine value test
11672773 - Iodine value test
Neutralisation reaction
11716773 - Neutralisation reaction
Reactivity of magnesium in water
11672729 - Reactivity of magnesium in water
Iodine value test
11672772 - Iodine value test
Universal indicator,neutral solution
11621754 - Universal indicator,neutral solution
Protein test
11520069 - Protein test
Bleach Spot on Shirt
12031141 - Bleach Spot on Shirt
Red maple (Acer rubrum)
11548464 - Red maple (Acer rubrum)
Blackcurrant juice indicator
11520082 - Blackcurrant juice indicator
Bromine test for alkene
11520014 - Bromine test for alkene
Indicator paper in acid
11519949 - Indicator paper in acid
Litmus test for amine solution
11520207 - Litmus test for amine solution
Universal indicator paper in rainwater
11520044 - Universal indicator paper in rainwater
Cobalt chloride paper
11519942 - Cobalt chloride paper
Chemical equilibrium experiment
11831964 - Chemical equilibrium experiment
Titration
11520108 - Titration
Iron test
11520070 - Iron test
Bleach In Action
12030614 - Bleach In Action
Bleach In Action
12030613 - Bleach In Action
Reaction rate experiment
11831859 - Reaction rate experiment
Sugar test experiment
11831858 - Sugar test experiment
Iodine value test
11672774 - Iodine value test
Titration experiment
11613838 - Titration experiment
Liquid crystal strip thermometer
11588727 - Liquid crystal strip thermometer
Litmus solution added to alkali
11520051 - Litmus solution added to alkali
Vitamin B12 oxidation
11520010 - Vitamin B12 oxidation
Litmus paper in alkali
11519952 - Litmus paper in alkali
Litmus paper in acid
11519950 - Litmus paper in acid
Ammonia fountain
11519875 - Ammonia fountain
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