Elementary Household Chemistry: An Introductory Textbook for Students of Home EconomicsMacmillan, 1914 - 307 σελίδες |
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Σελίδα
... REACTIONS OF ACIDS WITH BASES AND WITH BASIC OXIDES . IONIZATION 98 XVIII . METAL TARNISHES . 105 XIX . IRON RUST 109 XX . STRONG AND WEAK ACIDS AND BASES 114 XXI . HYDROLYSIS OF SALTS 117 XXII . HARD WATER 121 XXIII . AMMONIA AND THE ...
... REACTIONS OF ACIDS WITH BASES AND WITH BASIC OXIDES . IONIZATION 98 XVIII . METAL TARNISHES . 105 XIX . IRON RUST 109 XX . STRONG AND WEAK ACIDS AND BASES 114 XXI . HYDROLYSIS OF SALTS 117 XXII . HARD WATER 121 XXIII . AMMONIA AND THE ...
Σελίδα 9
... reactions " in which new substances are formed . Chemical changes seldom , if ever , occur without the accom- paniment of physical changes . In Experiment 2 , for example , not only is a new substance formed in place of the magne- sium ...
... reactions " in which new substances are formed . Chemical changes seldom , if ever , occur without the accom- paniment of physical changes . In Experiment 2 , for example , not only is a new substance formed in place of the magne- sium ...
Σελίδα 14
... react to form slaked ( or slacked ) lime , and slaked lime dissolves slightly in water , yielding limewater . The student will have observed that in each of the above experiments ( Nos . 13-17 ) one substance is converted into two or ...
... react to form slaked ( or slacked ) lime , and slaked lime dissolves slightly in water , yielding limewater . The student will have observed that in each of the above experiments ( Nos . 13-17 ) one substance is converted into two or ...
Σελίδα 16
... 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 . The oxygen is generated in the flask ...
... 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 . The oxygen is generated in the flask ...
Σελίδα 25
... reactions , as they are often called , are represented by equations , one side of which is made up of the formulas of the reacting substances ( together with certain figures ) , the other side of the formulas of the products of the reaction ...
... reactions , as they are often called , are represented by equations , one side of which is made up of the formulas of the reacting substances ( together with certain figures ) , the other side of the formulas of the products of the reaction ...
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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.