The New ChemistryD. Appleton and Company, 1897 |
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Pagina 21
... solution of soap . If , on standing , the solution settles perfectly clear , you are prepared for the next step ; if not , pour off the liquid and add more water to the same shav- ings , shaking as before . The second trial will hardly ...
... solution of soap . If , on standing , the solution settles perfectly clear , you are prepared for the next step ; if not , pour off the liquid and add more water to the same shav- ings , shaking as before . The second trial will hardly ...
Pagina 47
... solution was one of the most important contributions to science of the late Prof. Maxwell He , however , has shown it to be a necessary deduction from the well - known principles of mechanics that when molecules , like those of oxygen ...
... solution was one of the most important contributions to science of the late Prof. Maxwell He , however , has shown it to be a necessary deduction from the well - known principles of mechanics that when molecules , like those of oxygen ...
Pagina 51
... solution of ammonic chloride ( sal - ammoniac ) , and with this I will now smear the surface of a small glass plate . Placing this before our lantern , and using a lens of short focus , so as to form a greatly - enlarged image on the ...
... solution of ammonic chloride ( sal - ammoniac ) , and with this I will now smear the surface of a small glass plate . Placing this before our lantern , and using a lens of short focus , so as to form a greatly - enlarged image on the ...
Pagina 52
... solution in alcohol of a solid FIG . 9. - Crystallization of Urea . substance called urea , with which we will experiment in precisely the same way as before . . . . The process of crystallization , which is here so beautifully ...
... solution in alcohol of a solid FIG . 9. - Crystallization of Urea . substance called urea , with which we will experiment in precisely the same way as before . . . . The process of crystallization , which is here so beautifully ...
Pagina 57
... solution of urea , I will place it in the focus of my lens before the polarizer . The field is now perfectly dark , but , as soon as the crystals begin to form , you see these colored needles shoot out on the dark ground , presenting a ...
... solution of urea , I will place it in the focus of my lens before the polarizer . The field is now perfectly dark , but , as soon as the crystals begin to form , you see these colored needles shoot out on the dark ground , presenting a ...
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Termeni și expresii frecvente
acetic ether aëriform alcohol alizarine alkali atom of oxygen atomic weights atoms of hydrogen burning butyric acid called carbonic dioxide charcoal chemical change chemical processes chemist chemistry chlorine color combustion compounds condition consists contain copper criths cubic cubic centimetres cules definite proportions density effect elementary substances elements equal ether evidence example experiment facts flame gases glass grammes heat of formation Hence hydrate hydrochloric acid hydrogen hydrogen gas hydrogen-atoms Illustrations iron lecture light liquid litre magnet mass material metallic microcriths mole molecular structure molecular weight molecule of water molecules nitric nitric acid nitro-glycerine nitrogen nitrous oxide notice obtained oxygen oxygen gas particles phenomena polarized poles potassic pounds pressure principle quantity quantivalence radical reaction relations result salt simple sodic sodium solid solution specific gravity stances sugar sulphur symbols temperature tension theory tion vapor volatile volume wholly
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