試験管に入った薬
試験管
丸フラスコ
実験
三角フラスコ
実験イメージ
Test tube with red liquid
液体を試験管に入れる
複数の試験管
Benzoic acid precipitate
試験管とスポイド
試験管と葉っぱ
水と油
フラスコ
De-colourised bromine water
Phenol reactions
Row of test tubes with liquid, yellow background
Germany, Bavaria, Munich, Droplet being dispensed from pipette into test tube
Close up of pipette in test tube
Biological research, conceptual image
Iron (III) chloride solution
実験器具
4個のシャーレ
試験管と泡
試験管と手
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
Iron test
Metal displacement reaction
Fehling's reaction
Halogenoalkane reactions
Bromination of phenol
Precipitation reaction
Iron (II) and (III) precipitates
Displacement reaction
Calcium reacting with water
Zinc/acid reaction
スポイド
フラスコの中の金魚
Test tubes in a holder
Drug Development
Magnesium ribbon in ethanoic acid
Ethanal and Brady's reagent
Cobalt (II) chloride solution
Copper (II) chloride solution
Ammonia test
Healthcare And Medicine
Test tubes in a tube rack
Pharmaceutical research, conceptual image