flavouring and Government as a departments have a preservative; and recall the role in carrying out health risk assessments and implications of advising the public eating too chemicals in food much salt understand recall that recall that that alkalis alkalis are soluble neutralise used to acids to make neutralise and salts; acid soils, recall that alkali make used to be are chemicals obtained from alkalis, that bind burnt wood or and recall dyes to urine the cloth, patterns convert in the fats into reactions soap, and of these make with acids glass understand understand that the that increased early alkali industrialisation manufacturing led to a process released an shortage of acid gas (hydrogen alkali in the chloride) and created 19th century; waste that released a and recall that toxic gas; the first understand that process for waste can sometimes manufacturing be turned into useful alkali used salt, chemicals coal and understand that limestone oxidation can convert hydrogen chloride to chlorine, and that the properties of a compound are completely different from the elements from which it is made recall the uses of chlorine; interpret the understand data possible how the about the health chlorination of effects of problems drinking water polluted from made a major water on traces of contribution to health public health and the formed impact of by the water reaction of chorine in with organic disease materials in water understand recall that chlorine is that an electric now obtained by the
flavouring and as a preservative; and recall the health implications of eating too much salt Government departments have a role in carrying out risk assessments and advising the public chemicals in food understand that alkalis neutralise acids to make salts; recall that alkali used to be obtained from burnt wood or urine recall that alkalis are used to neutralise acid soils, make chemicals that bind dyes to cloth, convert fats into soap, and make glass recall that soluble and are alkalis, and recall the patterns in the reactions of these with acids understand that increased industrialisation led to a shortage of alkali in the 19th century; and recall that the first process for manufacturing alkali used salt, coal and limestone understand that the early alkali manufacturing process released an acid gas (hydrogen chloride) and created waste that released a toxic gas; understand that waste can sometimes be turned into useful chemicals understand that oxidation can convert hydrogen chloride to chlorine, and that the properties of a compound are completely different from the elements from which it is made recall the uses of chlorine; understand how the chlorination of drinking water made a major contribution to public health interpret data about the effects of polluted water on health and the impact of water in disease the possible health problems from traces of formed by the reaction of chorine with organic materials in water understand that an electric recall that chlorine is now obtained by the