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Updated: May 1, 2025
All acids contain one or more atoms of hydrogen capable of being replaced by metals, and when such hydrogen atoms are completely replaced by metals, there result so-called neutral or normal salts, that is, neutral substances having no action on litmus solution.
He had his audience with him; and the satirist had nothing but his inner gush of acids at sight of a planted barb. Colney was asked to explain. He never explained. He performed a series of astonishing leaps, like the branchy baboon above the traveller's head in the tropical forest, and led them into the trap they assisted him to prepare for them. 'No humour, do you say?
I never anywhere saw roads so magnificently kept, and, of course, this acids greatly to the comfort of travellers. Were the roads bad, indeed, what would become of them? After climbing for an hour we suddenly begin to descend, our road sweeping round the mountain sides with tremendous curves for about two hours or more, when all of a sudden we seemed to swoop down upon St.
The comparative inertia of lead to the chemical action of many acids has led to the contention that it should form as good, if not a better, protection of iron than zinc, but in practice it is found to be deficient as a protective coating against corrosion. A piece of lead-coated iron placed in water will show decided evidences of corrosion in twenty-four hours.
When first precipitated the hydroxides are all readily soluble in acids, but aluminium hydroxide dissolves with considerable difficulty after standing or boiling for some time.
In chemistry it is seen in the facts, that the dividing of matter into the four elements was ostensibly based upon the single property of weight; that the first truly chemical division into acid and alkaline bodies, grouped together bodies which had not simply one property in common, but in which one property was constantly related to many others; and that the classification now current, places together in groups supporters of combustion, metallic and non-metallic bases, acids, salts, etc., bodies which are often quite unlike in sensible qualities, but which are like in the majority of their relations to other bodies.
If ground to pass a sieve with twelve meshes to the linear inch, it is very satisfactory, provided that all of the fine dust produced in the grinding is included in the product. You see the soil acids are slightly soluble and they attack the limestone particles and are thus themselves destroyed or neutralized.
Under a wide-spreading sycamore a vendor of eatables, spirituous drinks, and acids for cooling the water, had set up his stall, and close to him, a crowd of boatmen, and drivers shouted and disputed as they passed the time in eager games at morra. A game still constantly played in the south of Europe, and frequently represented by the Egyptians.
This ozonized oxygen, when brought into mixture with many nitrogenized bodies, forms with them nitrous acids, completely destroying their former condition and composition; hence, in the atmosphere, this part of the oxygen becomes a purifier of the whole mass, from which it removes putrescent exhalations, miasmatic vapors, and the effluvia from every source of sea or land.
The same discovery fixed the attention of chemists upon hydrogen as an important element in acids; and more recent discoveries having led to the recognition of its presence in sulphuric, nitric, and many other acids, where its existence was not previously suspected, there is now a tendency to include the presence of this element in the connotation of the word.
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