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action of chlorine air or oxygen alkaline ammonium amorphous antimony aqua regia aqueous solution arsenic arsenic acid bismuth bleaching boiling point boric acid boron brittle bromine calcium called carbon dioxide carbon disulphide charcoal chemical Chemical.—Incombustible chiefly chlorine coal color colorless gas combination combustion composition condensed constituent contain crystalline crystals decomposed dilute direct union dissolves distillation energetic flame fluoride formation Formed by burning fuming gases grams graphite HALOGENS hence hydrochloric acid hydrofluoric acid hydrogen hydroxide ignited insoluble Iodide iodine known liquid melting metals mixture moist air molecular weight molecules MONOXIDE nitrates nitric acid nitrogen normal volume obtained Occurs free odor ordinary temperature oxygen ozone Pentoxide phosphoric acid Physical.—Colorless gas platinum poisonous potassium powder pressure Properties proportions reaction readily reagent red heat reducing agent salts Selenium silicates silicon slightly soluble sodium solid solidifies soluble in water specific gravity sulphate sulphide sulphuric acid Tellurium tion trioxide Unites directly vapor yellow
Page 8 - The Specific Gravity of a substance is the ratio of its weight to that of an equal volume of water.
Page 9 - periodic system' is a method of classification of the elements based on the generalisation that if the elements are arranged in the order of their atomic weights, most of the properties of the elements and of their compounds show periodic variations.
Page 78 - Mercury (Hydrargyrum) Molybdenum Nickel Nitrogen . Osmium Oxygen Palladium . Phosphorus Platinum Potassium (Kalium) . Rhodium...
Page 10 - It is the lightest form of matter known, being 14-45 times lighter than air, 11,000 times lighter than water, and 240,000 times lighter than platinum. Its molecular weight is therefore smaller than that of any other substance. For this reason, as shown in the section on diffusion, its diffusibility is higher than that...
Page 23 - At this temperature it is taken as the standard of specific gravity for solids and liquids.
Page 2 - ... compound. When oxygen and hydrogen combine to form water they always combine in the proportion of one part, by weight, of hydrogen to eight parts, by weight, of oxygen; or, expressed in percentage composition, 11.111 per cent., by weight, of hydrogen to 88.889 per cent., by weight, of oxygen. The same compound always contains the same elements combined in the same proportion by weight.