Elementary Chemistry |
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Page 2
... physical ; certain aspects of them we call chemical . A fire burns on the hearth : when the fire was kindled the grate was filled with lumps of coal ; as the fire sparkles and blazes up the black coal changes to a light - giving ...
... physical ; certain aspects of them we call chemical . A fire burns on the hearth : when the fire was kindled the grate was filled with lumps of coal ; as the fire sparkles and blazes up the black coal changes to a light - giving ...
Page 6
... physical change . The differences and resem- blances between these two kinds of change must be more fully illustrated . Iodine is a definite kind of matter , distinguished from other kinds by its lustre , greyish purple colour , opacity ...
... physical change . The differences and resem- blances between these two kinds of change must be more fully illustrated . Iodine is a definite kind of matter , distinguished from other kinds by its lustre , greyish purple colour , opacity ...
Page 7
... physical change ; if the water is placed in a retort arranged as shewn in fig . 3 , the water - gas ( or steam ) produced by heating the water is condensed to liquid water which is found in the small flask . But water may also be ...
... physical change ; if the water is placed in a retort arranged as shewn in fig . 3 , the water - gas ( or steam ) produced by heating the water is condensed to liquid water which is found in the small flask . But water may also be ...
Page 8
... physical change . Into a small quantity of water are thrown one or two pieces of the metal sodium ; the metal swims on the surface of the water ; a gas is produced which may be collected and examined ; when the sodium has disappeared ...
... physical change . Into a small quantity of water are thrown one or two pieces of the metal sodium ; the metal swims on the surface of the water ; a gas is produced which may be collected and examined ; when the sodium has disappeared ...
Page 9
... physical class . The emission of light by the burning magnesium , the conduction of heat through the mass of lead nitrate , the heating and volatilisation of water in the interaction of sugar and sulphuric acid ; these are physical ...
... physical class . The emission of light by the burning magnesium , the conduction of heat through the mass of lead nitrate , the heating and volatilisation of water in the interaction of sugar and sulphuric acid ; these are physical ...
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Common terms and phrases
acids to form affinity alcohol alkali allotropy ammonia ammonium ammonium chloride antimony aqueous solution atom of carbon atom of hydrogen atom of oxygen atomic theory atomic weight basic oxides bismuth bromine Chap chemical change chemical properties chlorine chromium combining weight composed composition copper decomposed definite directly interacting elements and compounds energy form salts gaseous molecules gases gasified grams H₂O H₂SO haloid compounds heat hydrides hydrochloric acid hydrogen and oxygen hydrogen chloride hydroxide interact with acids iodine iron kinds of matter liquid M₂O magnesium mass mercury metals mixture molecular and atomic molecular weight nitric acid nitrogen non-metallic obtained occur oxidised oxygen phosphorus physical potash potassium chloride produced quantity ratio reacting weight reactions represented rubidium selenion shew shewn sodium solid specific gravity structural formulae substances sulphate sulphide sulphuric acid tellurium temperature tube valency vols weight of hydrogen weight of oxygen zinc