Elementary Household Chemistry: An Introductory Textbook for Students of Home EconomicsMacmillan, 1914 - 307 σελίδες |
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Σελίδα 14
... give a large number of de- composition products . A great many also are decomposed by the electric current , and a special name , electrolysis , is applied to decomposition so effected . The decomposition products , we say , are simpler ...
... give a large number of de- composition products . A great many also are decomposed by the electric current , and a special name , electrolysis , is applied to decomposition so effected . The decomposition products , we say , are simpler ...
Σελίδα 16
... give out light . Many of the chemical reactions which produce great quantities of heat belong to the class we are now considering , viz . combinations . ( See Expt . 19. ) — FIG . 19. Burning carbon ( charcoal ) in a current of oxygen ...
... give out light . Many of the chemical reactions which produce great quantities of heat belong to the class we are now considering , viz . combinations . ( See Expt . 19. ) — FIG . 19. Burning carbon ( charcoal ) in a current of oxygen ...
Σελίδα 23
... gives an odor identical with that given by the iron itself ? If the differences between the mixture of iron and sulphur and the compound prepared in this ex- periment are not sufficiently marked ( as may happen if some of the iron and ...
... gives an odor identical with that given by the iron itself ? If the differences between the mixture of iron and sulphur and the compound prepared in this ex- periment are not sufficiently marked ( as may happen if some of the iron and ...
Σελίδα 25
... gives the names and symbols of all the eighty - three substances accepted as elements in the year 1913 by the International Committee of Chemists referred to above ( p . 19 ) . The twenty - six elements of chief interest to the house ...
... gives the names and symbols of all the eighty - three substances accepted as elements in the year 1913 by the International Committee of Chemists referred to above ( p . 19 ) . The twenty - six elements of chief interest to the house ...
Σελίδα 35
... give 56 grains of cal- cium oxide and 44 grains of carbon dioxide ; 100 ounces of calcium carbonate give 56 ounces of calcium oxide and 44 ounces of carbon dioxide ; and so on for pounds , tons , grams , kilograms , and all other units ...
... give 56 grains of cal- cium oxide and 44 grains of carbon dioxide ; 100 ounces of calcium carbonate give 56 ounces of calcium oxide and 44 ounces of carbon dioxide ; and so on for pounds , tons , grams , kilograms , and all other units ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
100-Calorie portion acetic acid action alcohol alkali aluminium ammonia ammonium Apparatus atoms bases beaker bisulphite bleaching boiling burning calcium Calories carbohydrates carbon dioxide carbon monoxide cellulose cent per cent CHAPTER chemical change chemistry coal color combustion compounds constituents contain copper cotton crystals dilute dish dissolved dyes elements esters ethyl Experiment Expt ferric fibers filter flame formula fuel value gases glass glucose glycerol grams H₂O hydrochloric acid hydrogen hydrolysis inch insoluble iron limewater liquid liter litmus paper magnesium Materials metal mixture molecules nitrate nitrogen odor ounces oxide oxygen phosphorus piece potassium potassium hydroxide pound powder precipitate Protein Fat Carbo proteins radicle reaction reagent residue salts silk soap soda sodium bisulphite sodium carbonate sodium chloride sodium hydroxide solid soluble starch substances sugar sulphate sulphuric acid temperature test tube tion vegetable washing weight wood wool yield zinc
Δημοφιλή αποσπάσματα
Σελίδα 191 - In the dietary studies made in connection with the nutrition investigations of the Office of Experiment Stations of the United States Department of Agriculture...
Σελίδα 294 - Measures of Length 10 millimeters (mm) =1 centimeter cm 10 centimeters =1 decimeter dm 10 decimeters =1 meter m 10 meters =1 dekameter Dm 10 dekameters =1 hektometer Hm 10 hektometers =1 kilometer Km...
Σελίδα 295 - Measures of Weight 10 milligrams (mg) =1 centigram eg 10 centigrams =1 decigram dg 10 decigrams =1 gram g 10 grams =1 dekagram Dg 10 dekagrams =1 hektogram Hg 10 hektograms =1 kilogram Kg...
Σελίδα 26 - Kelvin has shown that if a drop of water were magnified to the size of the earth the molecules of water would be of a size intermediate between that of a cricket ball and of a marble.