Crude oil is a major source of raw material for the petrochemical industry.
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A question of balance
Many chemical reactions can be reversed. When this happens we can describe a forward reaction and a back reaction. Sometimes the for...
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​ Students should: 1.3 understand how the results of experiments involving the dilution of coloured solutionsand diffusion of gases can be expla...
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An exothermic reaction
3.1 Energetics Students should: 3.1 know that chemical reactions in which heat energy is given out are described asexothermic, and those i...
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Universal indicator solution can be used to indicate the acidity or alkalin
Enter your text here ... IntroductionPearson specification A lot of everyday substances including some foods contain Acids. You can f...
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Ethanol is the alcohol in alcoholic drinks
4.29. Handle with care The alcohols are another homologous series like the alkanes and the alkenes. Alcohols contain a functional grou...
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Limonene is an alkene which can be found in the skin of citrus fruits
4.23 Meet the alkenes The Alkenes are another Homologous series of Hydrocarbons. They differ from the Alkanes because they contain in their mole...
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Butane is used as a fuel. It is the fourth member of the alkanes.
4.19 Some saturated hydrocarbons The Alkane series is a family of hydrocarbons. The technical name for this sort of "...
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Butane is used as a fuel. It is the fourth member of the alkanes.
4.19 Some saturated hydrocarbons The Alkane series is a family of hydrocarbons. The technical name for this sort of "...
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Organic chemistry is concerned with the compounds of the element carbon. Here we introduce the basic principles of this huge topic.
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most salts are crystalline ionic compounds
Defining salts Common "table" salt ( sodium chloride) is found dissolved in large quantities in seawater. Sodium Chloride is&nbs...
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IntroductionPearson Specification Analytical chemistry involves the identification of chemical substances using a variety of methods. Althou...
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most salts are crystalline ionic compounds
2.34 Defining salts Common "table" salt ( sodium chloride) is found dissolved in large quantities in seawater. Sodium Chloride i...
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Fireworks get their colours from the metal cations in them
2.45 - 2.46 Up in flames Fireworks produce a whole range of different colours. All fireworks release energy in the form of heat energy and are t...
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The pH of everyday substances and their pH values can be found using universal indicator
Acids and alkalis are all around us; many everyday foods, drinks, cleaning products are acidic or alkaline. Study the image of the pH scale "wheel". T...
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Classic reactions of the alkali metals with water
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​This is a test to see if the glossary works with Easyblog A metal atom . Enter your text here ... Enter your text here ...
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Electrolysis is often used to give metal objects a decorative coating. This is known as electroplating.
1.55 Using electrolysis Electrolysis happens when an electric current is passed through an ionic compound which has been melted or dissolved.&nb...
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2.23 Activity 3. Aluminium extraction Electrolysis is used to extract reactive metals from their ores. Aluminium is a good example of this....
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