All Reactions and synthesis articles – Page 3
-
-
ResourceScience concept cartoons: exothermic and endothermic reactions
Spark discussion and stimulate thinking about exothermic and endothermic reactions in a way that encourages pupils to share their ideas.
-
ExperimentThe equilibrium between two coloured cobalt species
In this demonstration the equilibrium between two different coloured cobalt species is disturbed. Le Chatelier’s principle is used to predict a colour change.
-
ExperimentPrecipitation reactions of lead nitrate
Compare the colours of various lead compounds to identify which would be good pigments in this microscale practical. Includes kit list and safety instructions.
-
-
-
ExperimentSome reactions of sulfur dioxide
Observe the reactions of sulfur dioxide with potassium manganate (IV), iodide/iodate mixture and indicator solution. Includes kit list and safety instructions.
-
ExperimentMicroscale reactions of hydrogen sulfide
Observe the reactions of hydrogen sulfide with lead nitrate, silver nitrate and potassium manganate(VII) in this microscale practical. Includes kit list and safety instructions.
-
ExperimentMicroscale reactions of ammonia
Try this practical to explore the reactions of ammonia with indicator solution, copper(II) sulfate solution and Nessler’s reagent. Includes kit list and safety instructions.
-
ExperimentThe chemistry of thiosulfate ions
Sodium thiosulfate has several interesting reactions with a variety of chemicals. This experiment will let students explore and record these reactions. Includes kit list and safety instructions.
-
ExperimentSome reactions of nitrogen dioxide
Using a range of chemicals and solutions, students can create an experiment that will explore some of the reactions of nitrogen dioxide. Includes kit list and safety instructions.
-
ExperimentMass changes in chemical reactions
Perform two chemical reactions to see whether any mass changes occur in this microscale class practical. Includes kit list and safety instructions.
-
ExperimentThe oxidation of cyclohexanol by nitric acid
Perform a ring opening oxidation using nitric acid to produce the dicarboxylic acid, 1,6-hexanedioic acid (adipic acid) – and then use the solid crystals that form to determine a melting point. Includes kit list and safety instructions.
-
ExperimentExploring the chemistry of chromium, molybdenum and tungsten
Discover how transition elements differ in aspects of colour, precipitate formation, changes in oxidation state and equilibria. Includes kit list and safety instructions.
-
ExperimentBrady’s test for aldehydes and ketones
Identify aldehydes and ketones using Brady’s reagent (2,4-dinitrophenylhydrazine) in this microscale experiment. Includes kit list and safety instructions.
-
ExperimentThe chemical properties of phenol
Observe and interpret some of the chemical reactions of hydroxybenzene (phenol), by adding five different substances to a Petri dish, and noting down findings. Includes kit list and safety instructions.
-
ExperimentPreparing ethyne on a microscale
Generate ethyne gas with calcium carbide and test its properties in this microscale class practical. Includes kit list and safety instructions.
-
ExperimentObserving chemical changes
Try this microscale practical to explore the chemical changes in displacement, redox and precipitation reactions. Includes kit list and safety instructions.
-
ExperimentRedox chemistry with dichromate ions
Observe the colour changes that occur with the reduction of dichromate ions by hydrogen peroxide. Includes kit list and safety instructions.
-
ExperimentMicroscale reactions of metals with acids
Try this class practical to explore reactivity series with various metals as they react with acids on a microscale. Includes kit list and safety instructions.