写真素材の検索結果

Zinc chloride and zinc sulphate

Zinc chloride and zinc sulphate

Zinc sulphate crystals.

Copper (II) sulphate crystals

Iron (II) chloride on a watch glass

Iron (II) chloride with hazard pictograms

Zinc granules in weak hydrochloric acid

Iron (II) hydroxide precipitation

Copper II sulfate

Magnesium sulfate heptahydrate crystals

Magnesium sulfate heptahydrate crystals

Lithium chloride burns with a bright crimson flame

Sodium chloride burns with a bright yellow flame

Salol crystals on a microscope slide

Decomposition of hydrogen peroxide

Burning zinc

Burning zinc

Daniell electrochemical cell

Daniell electrochemical cell

Iron (II) chloride solution

Iron (III) chloride solution

Copper (II) chloride solution

Cut apple

Battery and steel wool

Potassium permanganate titration

Potassium permanganate titration

Potassium permanganate titration

Precipitates of transition metal salts

Potassium permanganate titration

Decomposition of hydrogen peroxide

Decomposition of hydrogen peroxide

Positive test for carbon dioxide

Positive ammonia test

Iodine clock reaction

Poitive ammonia test

Test for carbon dioxide

The ammonia test

Copper-silver metal displacement reaction

Transition element salts

Transition elements and their salts

Transition elements and their salts

Sodium sulphate crystallization

Sodium sulphate crystallization

Copper sulphate crystals growing

Copper (II) chloride on watch glass

Copper (II) chloride with hazard pictograms

Copper sulphate electrolysis

Complete combustion experiment

Starch content of leaves

Formation of Lead (II) iodide

Methyl orange

Evaporation experiment

Potassium dichromate test for alcohols

Calcium reacting with water, initial stage

Calcium reacting with water, later stage

Limestone-acid reaction

Iron (III) hydroxide precipitation

Zinc Sulphate with hazard pictograms

Magnesium sulfate heptahydrate crystals

Potassium chromate and silver nitrate

pH in sodium bicarbonate solution

pH in sodium bicarbonate solution

Ammonia test

Reading a burette of permanganate

Reading a burette of permanganate

Reading a burette of permanganate

Testing for carbon dioxide gas with limewater

Rates of reaction experiment

Daniell electrochemical cell

Daniell electrochemical cell

Grinding natural rock salt

Recrystallised rock salt

Zinc Sulphate 7 water on watch glass

Copper (I) oxide on a watch glass

Copper (I) oxide with hazard pictograms

Container of the chemical element barium

Iron (III) sulfate

Alkali dissolving polyester

Zinc granules in sulphuric acid

Moles of solids compared

Moles of solids compared

Cobalt (II) chloride solution

Simple circuit with motor

Parallax demonstration

Placing jam jar over lit candle in dish containing water

Iodine clock reaction

Cobalt chloride test for water

Titration technique

Potassium reacting with water

Starch content of leaves

Formation of Lead (II) iodide

Formation of Lead (II) iodide

Formation of Lead (II) iodide

Formation of Lead (II) iodide

Salol crystals on a chilled microscope slide

Magnesium ribbon in ethanoic acid

Ethanal and Brady's reagent

De-colourised bromine water

Ethanal and Brady's reagent

Magnesium ribbon in ethanoic acid

Ethanal and Brady's reagent

Magnesium ribbon in ethanoic acid

Magnesium ribbon in ethanoic acid

Methyl orange in acid

Methyl orange in acid

Using a 'makeshift' calorimeter

Magnesium burning in air

Positive cobalt chloride test for water

The cobalt chloride test for water

Copper sulphate precipitate

理科室

理科室

理科室

人体模型

人体模型

人体模型

人体模型

理科室

理科室の椅子

School Science Lesson

Ferrous sulphate crystals

Transition element salts in solution

Transition element salts in solution

Transition element salts in solution

Digital colorimeters with cuvettes

Phenolphthalein a single indicator

Transition element salts in solution

Copper (I) chloride with hazard pictograms

Copper sulphate dissolving in water

Iron II sulphate 7 water on watch glass

Copper II sulphate on watch glass

Copper II sulphate with hazard pictograms

Iodine clock reaction

Red cabbage indicator

Iron salts in solid and liquid forms

Sulphate ion test result

実験をしている女子中学生

Universal indicator colour range

Phenolphthalein acid-base indicator

Magnesium-acid reaction

Magnesium-acid reaction

Potassium reacting with water

Potassium reacting with water

Lead crystals, metal displacement reaction

Lead crystals, metal displacement reaction

Lead crystals, metal displacement reaction

Sulfur

Magnetic repulsion

Magnetic field

Metal displacement reaction

Metal displacement reaction

School Science Lesson

Zinc reacting with copper sulphate

Zinc reacting with copper sulphate

Copper (II) sulphate

Hydrated copper sulphate crystals

Copper sulphate crystals

Copper sulphate crystals

Copper sulphate crystals

Copper sulphate crystal

Copper sulphate crystal

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soxhlet extractor

Soil settling out of water

Universal indicator

Transition element salts in solution

Transition element salts in solution

Transition element salts in solution

Immiscible liquids

Immiscible liquids

Immiscible liquids

pH meter in orange juice

Digital colorimeter

Digital colorimeter with cuvettes

Digital colorimeter with cuvettes

pH meter in orange juice

Reading a burette

Reading a burette

Titrating a reactant from a burette

Loudspeaker and microphone

Making a reactant solution

Reading a burette

Transferring a reactant into a flask

Testing pH