写真素材の検索結果

Cabbage as pH indicator

Testing pH

Testing pH

Petal colour change in basic solution

Sodium reacting with water

Cabbage as pH indicator

Acids react with alkalis producing a salt

Detecting an alkali

Household products containing alkalis

Litmus paper test

Sodium Hydroxide pearl photographed 1:1

Strong alkalis in laboratory bottles

Sodium hydroxide

Sodium hydroxide with hazard pictogram

Sodium hydroxide pellets on watch glass

Testing pH

pH in sodium bicarbonate solution

pH in sodium bicarbonate solution

Sodium hydroxide

Universal indicator papers

pH measurement of oxide solutions

Hydroxide precipitates

Hydroxide precipitates

Sodium hydroxide

Universal indicator papers

Metal hydroxides

Copper sulphate precipitate

Nickel hydroxide precipitate

Red cabbage pH indicator

Red cabbage pH indicator

Red cabbage pH indicator

Red cabbage pH indicator

Biuret reagent test for protein.

pH indicators, artwork

pH scale, artwork

Precipitates of transition metal salts

Bases

Universal indicator

Plant acid-base indicator

Indicator chemicals

Sodium hydroxide added to iron II sulfate

Equipment used in a titration.

Universal indicator scale

Universal indicator scale

Plant acid-base indicator

Phenolphthalein acid-base indicator

Acid-base indicators

Alkali dissolving polyester

Solutions of transition metals

Soap boiling house

Methyl orange indicator

Digital pH meter

Methyl orange indicator

Cobalt hydroxide precipitate

Bottle and pellets of sodium hydroxide

Copper (II) chloride solution

Iron (II) hydroxide precipitation

Potassium hydroxide pellets

Calcium hydroxide precipitate

Lead hydroxide precipitate

Benedict's test for sugar.

Colour range of Universal Indicator

Litmus indicator

Precipitates of transition metals

Phenolphthalein at pH9.3

Lithium reacting with water

Red cabbage indicator

Litmus solution added to acid

Red cabbage indicator

Haloalkane test

Iron (III) hydroxide precipitation

Haloalkane test

Sink unblocker chemical crystals

Sink unblocker chemical crystals

Universal indicator

Magnesium hydroxide precipitate

Aluminium hydroxide precipitate

ph値測定リトマス紙

Iron (II) chloride solution

Litmus solution added to alkali

Blackcurrant juice indicator

Laboratory pH meter

Testing pH of soils

Universal indicator paper

Universal indicator paper

Neutralisation titration

Red litmus paper turned blue by ammonia.

Phenolphthalein a single indicator

Fibrous mass of Brucite

Detecting acid formation

Universal indicator test on an orange

Blackcurrant juice indicator

Red cabbage as a pH indicator, artwork

Silver mirror test with Tollens' reagent

Universal indicator paper in rainwater

Haloalkane test

Haloalkane test

Haloalkane test

Haloalkane test

Haloalkane test

GHSCC hazard labels

Soil pH meter

Manganese hydroxide precipitate

Zinc hydroxide precipitate

Copper hydroxide precipitate

Iron (II) hydroxide precipitate

Iron (III) hydroxide precipitate

Cobalt hydroxide precipitate

Nickel hydroxide precipitate

Reactivity of magnesium

Reactivity of magnesium

Phenolphthalein indicator

Different coloured strips of litmus paper

Universal indicator colour range

Ammonium hydroxide in bottle

Soil pH meter

Iron precipitation.

Iron III hydroxide precipitate

Bromothymol blue indicator

Metal hydroxides

Common glasswort (Salicorna europaea)

Universal indicator test on a lemon

Silver mirror test

Silver mirror test

Silver mirror test

Acid-base titration

Acid-base titration

Acid-base titration

Acid and alkali indicators

Chromium hydroxide precipitate

Bleach with indicator

Acidic and alkaline chromate solutions

Phenolphthalein a single indicator

Lazulite in groundmass of quartz

Phenolphthalein a single indicator

Calcium reacting with water

Household alkalis

Household alkalis

Universal indicator

Close-up of a silver oxide watch battery.

Investigating pH and neutralisation.

Ammonia fountain

Copper sulphate reaction

Measuring pH

Measuring pH

Lithium reacting with water

Universal indicator colour range

Block of sodium metal

Indicator paper in alkali

Soil pH meter

Soil pH meter

Litmus strip in household cleaning liquid turning green

Neutralisation titration

Household alkalis

Litmus paper

Gibbsite

Gibbsite

Flame tests

Common acids and bases

Common acids and bases

Household ammonia with hazard pictogram.

Checking the quality of tap water with a water test kit

Potassium reacting with water

PH test with universal indicator paper

Brazilianite crystals

Container of the food additive E524

Acids and alkalis

Sodium carbonate water 10 on watch glass

Measuring pH

Copper sulphate reaction

Container of the food additive E526

Litmus pH indicator in acid and basic

Silver hydroxide precipitate

Calcareous soil

Methylene blue reduction time.

Litmus paper test on a lemon

Litmus paper test on a lemon

Litmus paper test on an orange

Litmus paper test on an orange

Container of the food additive E541

Carbon dioxide test

Brass analysis

Precipitation reaction

Precipitation reaction

Iron (II) and (III) precipitates

Checking tap water

Checking tap water

Checking tap water

Checking tap water

Checking tap water

Calcium reacting with water, later stage

Nitric acid molecule, illustration

Smithsonite encrustation

Flame tests

Silver thiosulphate precipitate

Silver chloride precipitate

Container of the food additive E1402

Guanidine molecule

Nickel II nitrate 6 water on watch glass

Eggshell reacting with hydrochloric acid