Elementary Household Chemistry: An Introductory Textbook for Students of Home EconomicsMacmillan, 1914 - 307 σελίδες |
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Σελίδα 13
... Compare the behavior of the two gases . One of these gases is the substance already met with in Experiments 13 and 14. What is its name ? The other is hydrogen . Which of the gases is obtained in the larger quan- tity ? Careful ...
... Compare the behavior of the two gases . One of these gases is the substance already met with in Experiments 13 and 14. What is its name ? The other is hydrogen . Which of the gases is obtained in the larger quan- tity ? Careful ...
Σελίδα 16
... comparing it with the original copper and sulphur as regards color , cohesion , etc. ( Ordinarily there will be a considerable quantity of unchanged sulphur left in the test tube , but this is readily distinguished from the new ...
... comparing it with the original copper and sulphur as regards color , cohesion , etc. ( Ordinarily there will be a considerable quantity of unchanged sulphur left in the test tube , but this is readily distinguished from the new ...
Σελίδα 23
... compare with the unheated portion . Make the following tests upon each of these two powders , comparing the results : see 66 ( a ) Pass a magnet through the powder . If both powders are attracted by the magnet , shake the magnet and ...
... compare with the unheated portion . Make the following tests upon each of these two powders , comparing the results : see 66 ( a ) Pass a magnet through the powder . If both powders are attracted by the magnet , shake the magnet and ...
Σελίδα 26
... comparing masses . All the mole- cules of any given substance , such as water , are equal in weight , but the weight of a water molecule is different from that of an alcohol molecule . The molecules of a substance cannot be in any way ...
... comparing masses . All the mole- cules of any given substance , such as water , are equal in weight , but the weight of a water molecule is different from that of an alcohol molecule . The molecules of a substance cannot be in any way ...
Σελίδα 39
... sometimes used to denote that the compound named has more of a certain element 1 Compare such words as dangerous , beauteous , mysterious , and tyrannous . ( usually oxygen ) than some other compound . Thus COMPOUNDS OF THE SAME ELEMENTS ...
... sometimes used to denote that the compound named has more of a certain element 1 Compare such words as dangerous , beauteous , mysterious , and tyrannous . ( usually oxygen ) than some other compound . Thus COMPOUNDS OF THE SAME ELEMENTS ...
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.