Practical Chemistry: A Course of Laboratory Work |
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Page 1
... presents the same appearance as before it was heated . The magnesium also glows ; but in addition to this , it is burnt : a white powder is produced , unlike the magnesium ; this white powder is called magnesia . The change produced in ...
... presents the same appearance as before it was heated . The magnesium also glows ; but in addition to this , it is burnt : a white powder is produced , unlike the magnesium ; this white powder is called magnesia . The change produced in ...
Page 5
... present , and can be recognised by its ordinary properties as being present , during and after the physical change . When a substance is chemically changed , the original substance disappears and at least one new substance is produced ...
... present , and can be recognised by its ordinary properties as being present , during and after the physical change . When a substance is chemically changed , the original substance disappears and at least one new substance is produced ...
Page 9
... present it can be proved that the difference between these weights is the weight of the oxygen which has combined with the copper . The change which occurs when magnesium , or iron , is burnt , also consists in combination of the ...
... present it can be proved that the difference between these weights is the weight of the oxygen which has combined with the copper . The change which occurs when magnesium , or iron , is burnt , also consists in combination of the ...
Page 14
... present you must be content with such a rough proof as is afforded by comparing , by means of the senses , the red solid you have obtained with the copper given you at the beginning of the experiment . In this experiment you produced a ...
... present you must be content with such a rough proof as is afforded by comparing , by means of the senses , the red solid you have obtained with the copper given you at the beginning of the experiment . In this experiment you produced a ...
Page 15
... present before the change began . * Note to Demonstrator . The piece of zinc should be such that when it dissolves in acid hydrogen is produced sufficient to fill the tube about ths . 08 grams zinc produce about 25-30 c.c. hydrogen ...
... present before the change began . * Note to Demonstrator . The piece of zinc should be such that when it dissolves in acid hydrogen is produced sufficient to fill the tube about ths . 08 grams zinc produce about 25-30 c.c. hydrogen ...
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Common terms and phrases
acetic acid alcohol alkali allow to cool ammonia ammonium carbamate ammonium chloride apparatus aqueous solution atomic weight barium barium oxide basin beaker boiling bottle bulb Bunsen-lamp calcium carbamate carbon dioxide Chap chemical change chromium trioxide colour combined composition compound concentrated sulphuric acid copper sulphate cork crucible crystallising crystals decomposed Demy 8vo determine dilute sulphuric acid dissolve drop ELEMENTARY CHEMISTRY elements equivalent evaporate evolved exit tube experiments ferric chloride ferrous sulphate filter filtrate flask grams H₂O hard glass heat hydriodic acid hydrochloric acid hydrogen hydroxide interact iodide iodine iron liquid litmus magnesium mass mercury metal mixture nitric acid nitrogen obtained oxalic acid oxidised oxygen pass permanganate phosphorus platinum potassium potassium chlorate prepared produced prove pure ratio reacting weight reaction salt shew shewn in Fig solid specific gravity sulphocyanide sulphuric acid temperature trioxide vapour warm wash weight of oxygen zinc
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