Elementary Household Chemistry: An Introductory Textbook for Students of Home EconomicsMacmillan, 1914 - 307 σελίδες |
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Σελίδα 7
... contain rennin ) and mix . Allow to stand for 15 min- utes . Shake the test tube and pour the contents on a filter , Has a chemical change occurred in the milk ? Experiment 9. ' Materials : Potassium iodide crystals . Mercuric chloride ...
... contain rennin ) and mix . Allow to stand for 15 min- utes . Shake the test tube and pour the contents on a filter , Has a chemical change occurred in the milk ? Experiment 9. ' Materials : Potassium iodide crystals . Mercuric chloride ...
Σελίδα 16
... contain . It then passes through the heated glass tube containing the charcoal , and finally through the second wash bottle , which contains limewater . ( Experiment 19. ) Examine the product formed from the copper , comparing it with ...
... contain . It then passes through the heated glass tube containing the charcoal , and finally through the second wash bottle , which contains limewater . ( Experiment 19. ) Examine the product formed from the copper , comparing it with ...
Σελίδα 17
... containing a 30 per cent solution of potassium hydroxide . Small combustion furnace ( with 4-10 burners ) . Hard ... contains no carbon dioxide . When this style of generator is employed limewater may be used in both the wash bottles ...
... containing a 30 per cent solution of potassium hydroxide . Small combustion furnace ( with 4-10 burners ) . Hard ... contains no carbon dioxide . When this style of generator is employed limewater may be used in both the wash bottles ...
Σελίδα 24
... contain , and whether these elements are present in the free state or com- bined into compounds . Chemical analysis is the art of finding out the composition of bodies . Chemistry is the science which treats of the composition of bodies ...
... contain , and whether these elements are present in the free state or com- bined into compounds . Chemical analysis is the art of finding out the composition of bodies . Chemistry is the science which treats of the composition of bodies ...
Σελίδα 25
... contains no elements but sodium and chlorine ; ferrous sulphide , none but iron and sulphur ; calcium oxide , none but ... contain : ( 1 ) Calcium oxide , ( 2 ) Magnesium nitrate , ( 3 ) Silver chloride , ( 4 ) Hydrogen sulphide , ( 5 ) ...
... contains no elements but sodium and chlorine ; ferrous sulphide , none but iron and sulphur ; calcium oxide , none but ... contain : ( 1 ) Calcium oxide , ( 2 ) Magnesium nitrate , ( 3 ) Silver chloride , ( 4 ) Hydrogen sulphide , ( 5 ) ...
Άλλες εκδόσεις - Προβολή όλων
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.