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Verre à montre Photos ❘ Science Photo Library
13244091 - Manganese dioxide on a watch glas
13243085 - Coarse iron filings on a watch glass
13243084 - Potassium dichromate on a watch glass
13243098 - Copper metal turnings on a watch glass
13243089 - Potassium permanganate on a watch glass
13471718 - Copper (I) oxide on a watch glass
13471716 - Iron (II) chloride on a watch glass
13243086 - Copper II oxide on a watch glass.
12395292 - Copper (II) oxide (CuO) on a watch glass
11520150 - Evaporating water using a sand tray
11520261 - Evaporating water from a brine solution
11712275 - Alarm clock inside a bell jar
11712276 - Alarm clock inside a bell jar
13244544 - Zinc oxide with hazard pictograms
11726036 - Evaporite of hard water
11712696 - Salt
11726035 - Evaporites of hard and distilled water
11712695 - Iron filings and sulphur
11726037 - Evaporite of hard water
11726038 - Evaporites of hard and distilled water
11712665 - Sodium
12030259 - Separating mixture by solution (2 of 2)
12030254 - Sand is insolvable in water
12030257 - Separating mixture by solution
12030252 - Sugar dissolves in water (1 of 2)
12030251 - Sugar dissolves in water
11520270 - Bottle and pellets of sodium hydroxide
12018244 - Ice Melting
12030255 - Sand is insolvable in water (1 of 2)
12030253 - Sugar dissolves in water (2 of 2)
12018242 - Ice Melting
12018243 - Ice Melting
12018241 - Ice Melting
13360841 - Sodium
12639409 - Potassium
12639407 - Lithium
12639408 - Sodium
13619013 - Sodium burning and exploding
13619258 - Lead and galena
13619321 - Potassium
13619239 - Lithium
12636035 - Salt evaporation residue
12639410 - Alkali Metals
12635619 - Iron
13619324 - Potassium
13619240 - Lithium
13619091 - Sodium thiosulfate
13619009 - Sodium burning and exploding
13244537 - Sodium carbonate with hazard pictograms
13360992 - Hard water evaporation residue
13619008 - Sodium burning and exploding
13361007 - Truvia sweetener
13243093 - Magnesium metal with hazard pictograms
13244541 - Calcium chloride with hazard pictograms
13243092 - Iron II sulphate 7 water on watch glass
13619257 - Lead
13619011 - Sodium burning and exploding
13360918 - Calcium chloride
13243097 - Nickel II nitrate 6 water on watch glass
13243099 - Iron II sulphate 7 water on watch glass
13243091 - Zinc metal granules on watch glass
13243083 - Magnesium metal powder in watch glass
13242849 - Flowers of Sulphur on watch glass
13360886 - Sweeteners
12635562 - Ethanol burns
13361014 - Water evaporation residues
13360827 - Sweet'n Low sweetener
13244547 - Zinc II chloride with hazard pictograms
13242845 - Copper II sulphate on watch glass
13619010 - Sodium burning and exploding
13360829 - Splenda sweetener
13619081 - Potassium iodide
13495979 - Iron(II) ammonium sulfate
13361134 - Dry ice sublimating
13245048 - Copper II oxide photographed at 1:
13244548 - Copper II sulphate with hazard pictograms
13244539 - Copper II sulphate with hazard pictograms
13243096 - Potassium permanganate hazard pictograms
13242856 - Zinc Sulphate with hazard pictograms
13444257 - Sodium
13242846 - Iron II Sulphide with hazard pictogram
12651688 - Cobalt(II) nitrate
12649713 - Ammonium dichromate volcano, 1 of 5
13244538 - Calcium oxide with hazard pictograms
12630546 - Calcium Oxide Reacts with Water
13244545 - Copper II sulphate with hazard pictograms
13242861 - Chromium III chloride 6 water
13242858 - Copper II sulphate with hazard pictograms
12651691 - Cobalt(II) chloride
12649710 - Ammonium dichromate volcano, 5 of 5
13361180 - Dry ice
13242859 - Flowers of Sulphur with hazard pictograms
12655365 - Nickel(II) chloride
12651689 - Lead oxidation states
13471714 - Copper (II) chloride on watch glass
13501168 - Chemicals
13471709 - Dried starch powder
13361223 - Equal sweetener
13244542 - Manganese dioxide with hazard pictograms
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