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Wednesday, 26 November 2008. Try this Air Quality Game. Affect Air Quality in a City.
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One important group of chemicals is acids. Some common acids are Hydrochloric Acid. Acids are always used in the liquid form in the laboratory. There are many acids present in our everyday lives. Lemon juice contains citric acid, ant and nettle stings contain methanoic acid, tea contains tannic acid and vinegar contains ethanoic acid. Acids have many properties that distinguish them from other substances.
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SEVENTH DAY ADVENTIST REFORM MOVEMENT GENERAL CONFERENCE. The morn-ing worship started with the singing of the hymn entitled The Great Physician Now is Near.