Dialogues in Chemistry: Intended for the Instruction and Entertainment of Young People : in which the First Principles of that Science are Fully Explained : to which are Added, Questions and Other Exercises for the Examination of Pupils

Első borító
James Eastburn and Company, 1818

Részletek a könyvből

Gyakori szavak és kifejezések

Népszerű szakaszok

31. oldal - ... turn, is soon deprived of some heat, and prepared to descend in like manner; and thus there is a constant flow of warm air from around to the sides of the ice, and a descent of the same in a cold state from the lower part of the mass, during which operation the ice must necessarily receive a great quantity of heat. It is, therefore, evident, that the melting ice receives heat very fast, but the only effect of this heat is to change it into water, which is not in the least sensibly warmer than...
35. oldal - OXYGEN, in chemistry, is one of the most important agents in nature ; there is scarcely a single process, either natural or artificial, in which oxygen has not a share, but it is known only in combination with other bodies. " Oxygen,
55. oldal - When a globule of the basis of potash is placed upon ice, it instantly burns with a bright flame, and a deep hole is made in the ice, which is found to contain a solution of potash.
55. oldal - ... it upon moistened paper tinged with turmeric. At the moment that the globule comes into contact with the water, it burns, and moves rapidly upon the paper, as if in search of moisture, leaving behind it a deep reddish brown trace, and acting upon the paper precisely as dry caustic potash.

Bibliográfiai információk