Elementary Chemistry |
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Page 197
... atoms . A mass of any element , or compound , was regarded as constituted of a vast number of very small particles of matter , all alike , all having the same weight , but all unlike the atoms of any other element , or compound . The atoms ...
... atoms . A mass of any element , or compound , was regarded as constituted of a vast number of very small particles of matter , all alike , all having the same weight , but all unlike the atoms of any other element , or compound . The atoms ...
Page 198
... atomic weight of hydrogen , one ; then the atomic weight of oxygen is asserted to be 8. Masses of hydrogen and oxygen combine in the ratio 1 8 , to form water ; but an atom of water is formed by the union of atoms of hydrogen and oxygen ...
... atomic weight of hydrogen , one ; then the atomic weight of oxygen is asserted to be 8. Masses of hydrogen and oxygen combine in the ratio 1 8 , to form water ; but an atom of water is formed by the union of atoms of hydrogen and oxygen ...
Page 200
... atom of oxygen is 16 times heavier than an atom of hydrogen ; but the atomic weight of hydrogen is 1 , therefore the atomic weight of oxygen is 16 . Again , 1 volume of chlorine combines with 1 volume of hydrogen to form hydrogen ...
... atom of oxygen is 16 times heavier than an atom of hydrogen ; but the atomic weight of hydrogen is 1 , therefore the atomic weight of oxygen is 16 . Again , 1 volume of chlorine combines with 1 volume of hydrogen to form hydrogen ...
Page 205
... atoms . But we agree to call the atomic weight of hydrogen one , and to make this the standard in terms of which the relative weights of the atoms of other elements are to be stated . Hence the smallest value which we can give to the ...
... atoms . But we agree to call the atomic weight of hydrogen one , and to make this the standard in terms of which the relative weights of the atoms of other elements are to be stated . Hence the smallest value which we can give to the ...
Page 206
... atom of hydrogen and one atom of chlorine . For reasons such as these , we conclude that the molecular weight of hydrogen is almost certainly two ; that is , that the molecule of hydrogen is composed of two atoms , the weight of each of ...
... atom of hydrogen and one atom of chlorine . For reasons such as these , we conclude that the molecular weight of hydrogen is almost certainly two ; that is , that the molecule of hydrogen is composed of two atoms , the weight of each of ...
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Common terms and phrases
acids to form affinity alcohol alkali allotropy ammonia ammonium 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 expressed 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 Thallium tube valency weight of hydrogen weight of oxygen zinc
Popular passages
Page 73 - The fact that two volumes of hydrogen combine with one volume of oxygen to form...
Page 265 - ... the eighth element starting from a given one is a kind of repetition of the first, like the eighth note of an octave in music.
Page 196 - Now it is one great object of this work, to show the importance and advantage of ascertaining the relative weights of the ultimate particles, both of simple and compound bodies, the number of simple elementary particles which constitute one compound particle, and the number of less compound particles which enter into the formation of one more compound particle.
Page 11 - That there abides in nature a certain pure matter, which, being discovered and brought by art to perfection, converts to itself proportionally all imperfect bodies that it touches.
Page 182 - The total energy of any body or system of bodies is a quantity which can neither be increased nor diminished by any mutual action of such bodies, though it may be transformed into any one of the forms of which energy is susceptible.
Page 197 - When only one combination of two bodies can be obtained, it must be presumed to be a binary one, unless some cause appear to the contrary.
Page 175 - Waage formulate the law of mass thus chemical action is proportional to the active mass of each substance taking part in the change.
Page 192 - And it often makes a great difference with what things and in what position the same first-beginnings are held in union and what motions they mutually impart and receive...
Page 49 - Dalton, all substances combine in definite proportions or "equivalents" ; thus, 1 part by weight of hydrogen combines with 8 parts by weight of oxygen to form water.