試験管に入った薬
試験管
丸フラスコ
実験
実験イメージ
三角フラスコ
液体を試験管に入れる
試験管とスポイド
試験管と葉っぱ
複数の試験管
水と油
Benzoic acid precipitate
Test tube with red liquid
試験管と泡
試験管と手
De-colourised bromine water
フラスコ
Row of test tubes with liquid, yellow background
Germany, Bavaria, Munich, Droplet being dispensed from pipette into test tube
Iron (III) chloride solution
Ammonia test
4個のシャーレ
Cobalt chloride test for water
Positive cobalt chloride test for water
The cobalt chloride test for water
The ammonia test
Positive ammonia test
Poitive ammonia test
Lab samples in test tubes
スポイド
Phenol reactions
Copper-silver metal displacement reaction
Magnesium ribbon in ethanoic acid
Ethanal and Brady's reagent
フラスコの中の金魚
Healthcare And Medicine
Cobalt (II) chloride solution
Copper (II) chloride solution
Close up of pipette in test tube
Biological research, conceptual image
Precipitate of copper (II) chloride in sodium hydroxide
Water
小さな芽の入った試験管
Row of test tubes with liquid
Row of test tubes with liquid, red background
Germany, Bavaria, Munich, Test tubes in test tube rack
Germany, Bavaria, Munich, Test samples stored in ice
試験管とスポイト
シャーレ
Healthcare And Medicine,Glassware,Laboratory Glassware,Utensil,,Test Tube