Monday, 14 March 2016

Pure and Impure Chemical Substances




Pure chemical substances

Pouring water into a glass from a bottle
A glass of mineral water is not pure water
Food and drink may be advertised as ‘pure’. For example, you may see cartons of ‘pure orange juice’ or ‘pure mineral water’. This means that nothing else was added to the orange juice or mineral water during manufacture. However, these substances are not pure to a scientist. In science, a pure substance contains only one element or compound.
Mineral water is mostly water, but there are other substances mixed with it. These are the ingredients that you see listed on the bottle’s label.
Sparkling water mineral content. This label lists the various minerals contained within the water in milligrams per litre (mg/litre)



                                                      Learn More At: Pure and Impure Substances

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