Fourteen Weeks in ChemistryAmerican Book Company, 1873 - 310 σελίδες |
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
absorbs acetic acid alcohol allotropic ammonia ammonium anhydride atomic weight blue boiling bottle burn calcium called candle carbonate charcoal chemical chemical affinity chloride CO₂ coal color colorless combine combustion compound contains copper cork crystals decomposed dilute dissolved drop elements ether exposed fermentation filter fire flame flask formed gases glass tube H₂O H₂SO hard water heat HNO3 hydrate hydrogen ignite insoluble iodide iron lamp light lime liquid melted metals mixed mixture molecular weight molecule nitrate nitric nitric acid obtained odor oxalic acid oxide pass phosphorus piece plants poisonous potash potassium potassium carbonate potassium chlorate powder Preparation produced Properties quantity salt silver soda sodium sodium carbonate soluble solution Specific Gravity starch substance sugar sulphate sulphide sulphur sulphuric acid Symbol and molecular test-tube vapor white precipitate yellow zinc
Δημοφιλή αποσπάσματα
Σελίδα 238 - Your worm is your only emperor for diet: we fat all creatures else to fat us, and we fat ourselves for maggots: your fat king and your lean beggar is but variable service; two dishes, but to one table: that's the end.
Σελίδα 238 - Full fathom five thy father lies, Of his bones are coral made : Those are pearls that were his eyes, Nothing of him that doth fade, But doth suffer a sea change, Into something rich and strange.
Σελίδα 238 - Imperious Caesar, dead and turn'd to clay, Might stop a hole to keep the wind away : O, that that earth, which kept the world in awe, Should patch a wall to expel the winter's flaw ! But soft ! but soft ! aside : here comes the king.
Σελίδα 177 - And sees them, when the rain is done, On the bridge of colors seven Climbing up once more to heaven, Opposite the setting sun. Thus the Seer, With vision clear, Sees forms appear and disappear, In the perpetual round of strange, Mysterious change From birth to death, from death to birth, From earth to heaven, from heaven to earth ; Till glimpses more sublime Of things, unseen before, Unto his wondering eves reveal The Universe, as an immeasurable wheel Turning forevermore In the rapid and rushing...
Σελίδα 237 - It was found that everything had passed into oblivion. The shape of the coffins could only be traced by a black line of carbonaceous matter. The rusted hinges and nails, and a round wooden knot, alone remained in one grave ; while a sinr le lock of braided hair was found in the other.
Σελίδα 21 - That each element is composed of indivisible* atoms which are exactly equal in size and weight. 2. That the atomic weights represent the relative weights of the atoms of various kinds. 3. That compounds are formed by the union of atoms of different kinds in the proportion of their atomic weights or multiples of them. 4. That the molecular weight of a compound is equal to the sum of the atomic weights of its elements. A Binary Compound is a union of two elements.
Σελίδα 184 - In the process of ripening, or by heat, acids, etc., it is turned into pectin. We find this abundant in the thick juice which exudes from an apple while baking. In the making of jellies, pectose is converted into a mixture of pectosic and pectic acids.
Σελίδα 146 - Iron bridges span onr rivers, Iron pens are used for writing, Iron ink our thoughts inditing, Iron stoves for cooking victuals, Iron ovens, pots, and kettles, Iron horses draw our loads, Iron rails compose our roads, Iron anchors hold in sands, Iron bolts and rods and bands, Iron houses, iron walls, Iron cannon, iron...
Σελίδα 254 - Dissolve 100 parts, by weight, of sodium acetate in 15 parts hot water, and carefully pour it in the same glass ; the latter will form an overlying layer on the surface of the former, and will not mix with it. When cool there will be two supersaturated solutions. If a crystal of sodium hyposulphite be attached to a thread and carefully...