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Age 14 - 16

191 Article

Properties of mixtures

Properties of mixtures

Item no.: P7150600

Liquid mixtures

Liquid mixtures

Item no.: P7150700

Mixture separation - evaporation

Mixture separation - evaporation

Item no.: P7150800

Mixture separation - extraction

Mixture separation - extraction

Item no.: P7151000

Separation of a mixture of liquids by distillation

Separation of a mixture of liquids by distillation

Item no.: P1132500

Properties of matter - boiling point

Properties of matter - boiling point

Item no.: P7150300

Volume contraction of liquids

Volume contraction of liquids

Item no.: P7151700

Dissolution of salts

Dissolution of salts

Item no.: P7151900

Comparison of a physical process and a chemical reaction

Comparison of a physical process and a chemical reaction

Item no.: P7151200

Reaction of copper and sulphur

Reaction of copper and sulphur

Item no.: P7151300

Chemical process: synthesis and analysis

Chemical process: synthesis and analysis

Item no.: P1131701

The law of conservation of mass in chemical reactions

The law of conservation of mass in chemical reactions

Item no.: P1134300

The law of definite proportions in chemical reactions

The law of definite proportions in chemical reactions

Item no.: P1134400

Test for hydrogen

Test for hydrogen

Item no.: P7151500

Test for nitrogen

Test for nitrogen

Item no.: P7151600

Salt formation by precipitation reaction - qualitative determination of chlorids and sulphates

Salt formation by precipitation reaction - qualitative determination of chlorids and sulphates

Item no.: P7159700

The importance of air for combustion processes

The importance of air for combustion processes

Item no.: P7153300

Air, a mixture of substances

Air, a mixture of substances

Item no.: P7153400

Structure and mode of operation of a Bunsen burner

Structure and mode of operation of a Bunsen burner

Item no.: P7154100

The candle flame

The candle flame

Item no.: P7154200

Periodic system properties of a group of elements - Group 2

Periodic system properties of a group of elements - Group 2

Item no.: P7152200

Dipole properties

Dipole properties

Item no.: P7152300

Water content of natural substances

Water content of natural substances

Item no.: P7154500

Dissolved components in different waters

Dissolved components in different waters

Item no.: P7154600

Solubility of gases in water

Solubility of gases in water

Item no.: P7154700

Solutions, colloids, suspensions

Solutions, colloids, suspensions

Item no.: P7154800

Solubility of salts in water - comparison with the solubili-ty of gases in water

Solubility of salts in water - comparison with the solubili-ty of gases in water

Item no.: P7154900

Hardness of water

Hardness of water

Item no.: P7155200

Test for water

Test for water

Item no.: P7155300

Water, an oxide

Water, an oxide

Item no.: P7155400

Degradation of water by reducing agents

Degradation of water by reducing agents

Item no.: P7155500

Synthesis of water

Synthesis of water

Item no.: P7155600

Oxidation of metals

Oxidation of metals

Item no.: P7153000

Factors determining the reaction behaviour of metals

Factors determining the reaction behaviour of metals

Item no.: P7153100

Rusting- "slow combustion"

Rusting- "slow combustion"

Item no.: P7154300

Reduction of copper oxide

Reduction of copper oxide

Item no.: P7154400

Quantitative analysis of oxides

Quantitative analysis of oxides

Item no.: P7153700

The effects of acids on metals

The effects of acids on metals

Item no.: P7157500

Salt formation from chemical elementsreaction of zinc and iron with sulphur and iodine

Salt formation from chemical elementsreaction of zinc and iron with sulphur and iodine

Item no.: P7159600

Properties of aluminium

Properties of aluminium

Item no.: P1143400

Production of metal alloys

Production of metal alloys

Item no.: P1143901

Reaction of magnesium and calcium with water - hydroxideformation

Reaction of magnesium and calcium with water - hydroxideformation

Item no.: P1138000

Identifying cations with a flame test

Identifying cations with a flame test

Item no.: P7511200

Water quality - contamination with heavy metals

Water quality - contamination with heavy metals

Item no.: P0990162

We examine our drinking water with Cobra4

We examine our drinking water with Cobra4

Item no.: P1520062

Acidity changes of a watercourse

Acidity changes of a watercourse

Item no.: P1520862

Comparison of soil and air temperatures in the course of a day with Cobra4

Comparison of soil and air temperatures in the course of a day with Cobra4

Item no.: P1520962

The pH value of various soils

The pH value of various soils

Item no.: P1521062

Salinity of soils and plant substrates

Salinity of soils and plant substrates

Item no.: P1521162

Salinity changes of a watercourse

Salinity changes of a watercourse

Item no.: P1521462

We visit a wastewater treatment plant

We visit a wastewater treatment plant

Item no.: P1521662

Mode of operation of an aeration tank (sewage treatmentplant)

Mode of operation of an aeration tank (sewage treatmentplant)

Item no.: P7155000

Water treatment in sewage treatment plants

Water treatment in sewage treatment plants

Item no.: P7155100

Oxygen, cause of oxidation

Oxygen, cause of oxidation

Item no.: P7153200

Properties of oxygen

Properties of oxygen

Item no.: P7153500

Reactions in pure oxygen

Reactions in pure oxygen

Item no.: P7153600

Nitrogen, preparation and properties

Nitrogen, preparation and properties

Item no.: P7153800

Carbon dioxide, preparation and properties

Carbon dioxide, preparation and properties

Item no.: P7153900

Soda-lime glass beads

Soda-lime glass beads

Item no.: P7156400

Properties of sulphur

Properties of sulphur

Item no.: P1139600

Binding of nitrogen by base metals

Binding of nitrogen by base metals

Item no.: P1140500

Graphite and diamond

Graphite and diamond

Item no.: P1142200

General safety precautions to be taken when handling acids

General safety precautions to be taken when handling acids

Item no.: P7157000

Hazardousness of concentrated sulphuric acid

Hazardousness of concentrated sulphuric acid

Item no.: P7157100

Plant pigments as indicators

Plant pigments as indicators

Item no.: P7157200

The effects of acids on indicators

The effects of acids on indicators

Item no.: P7157300

The effects of acids and lyes on natural and commercial

The effects of acids and lyes on natural and commercial

Item no.: P7157400

Acid strength

Acid strength

Item no.: P7157600

Preparation and properties of hydrochloric acid

Preparation and properties of hydrochloric acid

Item no.: P7157700

Preparation and properties of sulphurous acid

Preparation and properties of sulphurous acid

Item no.: P7157800

PVC- a potential hydrochloric acid former

PVC- a potential hydrochloric acid former

Item no.: P7157900

Sulphurous acid- environmental hazards due to the combustionof fossil fuels, acid rain

Sulphurous acid- environmental hazards due to the combustionof fossil fuels, acid rain

Item no.: P7158000

Oxidation of sulphurous acid

Oxidation of sulphurous acid

Item no.: P7158100

Preparation and properties of sulphuric acid

Preparation and properties of sulphuric acid

Item no.: P7158200

Preparation and properties of carbonic acid

Preparation and properties of carbonic acid

Item no.: P7158300

Brönsted acids: conductivity comparison of molten and dis-solved oxalic acid

Brönsted acids: conductivity comparison of molten and dis-solved oxalic acid

Item no.: P7158400

Brönsted acids: acidity comparison of an aqueous and an ace-tonic solution of citric acid

Brönsted acids: acidity comparison of an aqueous and an ace-tonic solution of citric acid

Item no.: P7158500

Safety precautions to be taken when handling lyes

Safety precautions to be taken when handling lyes

Item no.: P7158600

Alkalis - constituents of hous ehold detergents

Alkalis - constituents of hous ehold detergents

Item no.: P7158700

Ammonia- comparison of gas and aqueous solutions

Ammonia- comparison of gas and aqueous solutions

Item no.: P7158750

Aqueous solubility of ammonia

Aqueous solubility of ammonia

Item no.: P7158800

Preparation and properties of a lime water/magnesium hydro-xide solution

Preparation and properties of a lime water/magnesium hydro-xide solution

Item no.: P7158900

Preparation and properties of sodium hydroxide solution

Preparation and properties of sodium hydroxide solution

Item no.: P7159000

Alkali formation due to a reaction of base metals with water - qualitative determination of the conductivity of solution

Alkali formation due to a reaction of base metals with water - qualitative determination of the conductivity of solution

Item no.: P7159100

Alkali formation due to a reaction of metal oxides with wa-ter

Alkali formation due to a reaction of metal oxides with wa-ter

Item no.: P7159200

Acids and their effect on indicators

Acids and their effect on indicators

Item no.: P7510100

The effect of acids and bases on natural and synthetic indicators

The effect of acids and bases on natural and synthetic indicators

Item no.: P7510200

Identification of buffers with indicators

Identification of buffers with indicators

Item no.: P7510300

Temperature behaviour of organic compounds

Temperature behaviour of organic compounds

Item no.: P1149800

The decomposition of organic substances

The decomposition of organic substances

Item no.: P7170000

The detection of carbon by oxidation

The detection of carbon by oxidation

Item no.: P7170200

The detection of oxygen

The detection of oxygen

Item no.: P7170300

The detection of nitrogen

The detection of nitrogen

Item no.: P7170400

The detection of sulphur

The detection of sulphur

Item no.: P7170500

The Beilstein test

The Beilstein test

Item no.: P7170600

Titration of a strong acid with a strong base with the aid of a suitable indicator

Titration of a strong acid with a strong base with the aid of a suitable indicator

Item no.: P7510500

Titration of a strong acid with a strong base with Cobra4

Titration of a strong acid with a strong base with Cobra4

Item no.: P7510562

Titration of a strong acid with a strong base with the aid of several indicators

Titration of a strong acid with a strong base with the aid of several indicators

Item no.: P7510600

Titration of an acidic soft drink with a strong base with Cobra4

Titration of an acidic soft drink with a strong base with Cobra4

Item no.: P7511862

Experimental confirmation: Henderson-Hasselbalch with Cobra4

Experimental confirmation: Henderson-Hasselbalch with Cobra4

Item no.: P7511762