The New ChemistryHenry S. King & Company, 1874 - 326 páginas |
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Página 53
... salt as the solution evaporates . . . . Notice that , first , small particles appear , and then from these nuclei the crystals shoot out and ramify in all directions , soon covering the plate with a beautiful net - work of the fila ...
... salt as the solution evaporates . . . . Notice that , first , small particles appear , and then from these nuclei the crystals shoot out and ramify in all directions , soon covering the plate with a beautiful net - work of the fila ...
Página 59
... salt under these conditions . I will , there- fore , take another glass plate , and , having smeared it as before with the solution of urea , I will place it in the focus of my lens before the polarizer . The field is now perfectly dark ...
... salt under these conditions . I will , there- fore , take another glass plate , and , having smeared it as before with the solution of urea , I will place it in the focus of my lens before the polarizer . The field is now perfectly dark ...
Página 85
... salt must have all the saline properties which we associate with this substance . Dissolve the salt in water , and you simply divide the mass into molecules . Convert the salt into vapor , as you readily can , and again you isolate the ...
... salt must have all the saline properties which we associate with this substance . Dissolve the salt in water , and you simply divide the mass into molecules . Convert the salt into vapor , as you readily can , and again you isolate the ...
Página 86
... salt in precisely the same way that a lump of sugar differs from a lump of salt . In a word , what is true of the substance in mass is true of its molecules . Hence it is that , in studying the chemi- cal relations of substances , we ...
... salt in precisely the same way that a lump of sugar differs from a lump of salt . In a word , what is true of the substance in mass is true of its molecules . Hence it is that , in studying the chemi- cal relations of substances , we ...
Página 118
... we can break up the molecules , and the parts of the mole- cule thus brought to our knowledge are the atoms . Take , for example , common salt : THE RELATIVE WEIGHTS OF ATOMS . 119 The smallest particle 118 COMBINING PROPORTIONS .
... we can break up the molecules , and the parts of the mole- cule thus brought to our knowledge are the atoms . Take , for example , common salt : THE RELATIVE WEIGHTS OF ATOMS . 119 The smallest particle 118 COMBINING PROPORTIONS .
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Palavras e frases frequentes
acetic ether aëriform alcohol alkali atom of oxygen atomic weights atoms of hydrogen burning butyric acid calcic called carbonic dioxide charcoal chemical change chemistry chlorine color combination combustion compounds consists contain Cornhill criths Crown 8vo cubic cubic centimetres cule definite Edition elementary substances elements energy equal ether evidence experiment facts flame formic acid gases Gazette glass grammes heat Hence hydrate hydrochloric acid hydrogen hydrogen gas hydrogen-atoms illustrate iron lecture light liquid litre mass material metal microcriths mole molecular structure molecular weight molecule of oxygen molecule of water molecules nitric nitric acid nitro-glycerine nitrogen obtained oxide oxygen oxygen gas particles Paternoster Row phenomena phosphorus polarized pole potassic pounds pressure Price Prof Published by Henry quantivalence radical reaction result salt simple sodium solid solution specific gravity sugar sulphur symbol temperature theory tion vapor volatile volume
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