The New ChemistryHenry S. King & Company, 1874 - 326 páginas |
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Página 14
... Charcoal , for example , is only known in the solid state ; alcohol has never been frozen , but can easily be volatilized ; while , as every one knows , water can most readily be changed both into solid ice and into aëriform steam . Let ...
... Charcoal , for example , is only known in the solid state ; alcohol has never been frozen , but can easily be volatilized ; while , as every one knows , water can most readily be changed both into solid ice and into aëriform steam . Let ...
Página 87
... charcoal . Evidently , this charcoal must have come from the sugar . The crucible is unchanged , and , be- sides the air , the sugar and platinum were the only substances present . Let me , however , enforce this con- clusion by still ...
... charcoal . Evidently , this charcoal must have come from the sugar . The crucible is unchanged , and , be- sides the air , the sugar and platinum were the only substances present . Let me , however , enforce this con- clusion by still ...
Página 88
... charcoal has been evolved out of a considerable mass of sugar ; but the result would have been the same could we experiment on the individual molecules . It is evident , therefore , that the charcoal has been formed out of the sugar ...
... charcoal has been evolved out of a considerable mass of sugar ; but the result would have been the same could we experiment on the individual molecules . It is evident , therefore , that the charcoal has been formed out of the sugar ...
Página 95
... charcoal , and out of water come oxygen and hydrogen gases . Such changes as these are called chemical changes . They are caused by a change in the old molecules . New ones are formed , and hence new substances are formed . In some ...
... charcoal , and out of water come oxygen and hydrogen gases . Such changes as these are called chemical changes . They are caused by a change in the old molecules . New ones are formed , and hence new substances are formed . In some ...
Página 96
... charcoal and water , we mean merely that these two substances may be evolved from sugar ; and the evidence that they ... charcoal and oxygen , our asser- tion is based on the fact that , in the process of burning , the oxygen gas appears ...
... charcoal and water , we mean merely that these two substances may be evolved from sugar ; and the evidence that they ... charcoal and oxygen , our asser- tion is based on the fact that , in the process of burning , the oxygen gas appears ...
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Términos y frases comunes
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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