Elementary Household Chemistry: An Introductory Textbook for Students of Home EconomicsMacmillan, 1914 - 307 σελίδες |
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Σελίδα 14
... carbon dioxide , and the residue left in the crucible after all the carbon dioxide has been driven out is quicklime or calcium oxide . Quicklime is commonly made from limestone , a less pure calcium carbonate than marble . Quicklime and ...
... carbon dioxide , and the residue left in the crucible after all the carbon dioxide has been driven out is quicklime or calcium oxide . Quicklime is commonly made from limestone , a less pure calcium carbonate than marble . Quicklime and ...
Σελίδα 16
... carbon ( charcoal ) in a current of oxygen . The oxygen is generated in the flask by heating potassium chlorate . By bubbling through 30 per cent potassium hydroxide in the first wash bottle , it is freed from any carbon dioxide it may ...
... carbon ( charcoal ) in a current of oxygen . The oxygen is generated in the flask by heating potassium chlorate . By bubbling through 30 per cent potassium hydroxide in the first wash bottle , it is freed from any carbon dioxide it may ...
Σελίδα 17
... carbon into the limewater . What occurs ? has been formed ? What gas If the ... carbon . This substance , when raised to a sufficiently high temperature ... dioxide . When this style of generator is employed limewater may be used in ...
... carbon into the limewater . What occurs ? has been formed ? What gas If the ... carbon . This substance , when raised to a sufficiently high temperature ... dioxide . When this style of generator is employed limewater may be used in ...
Σελίδα 17
... carbon dioxide ( carbonic acid gas ) are produced . ( See Expt . 17. ) But carbon dioxide , as we have seen ( Expt . 19 ) , is composed of the simpler substances , carbon and oxygen . Similarly , quicklime is a compound of a metal ...
... carbon dioxide ( carbonic acid gas ) are produced . ( See Expt . 17. ) But carbon dioxide , as we have seen ( Expt . 19 ) , is composed of the simpler substances , carbon and oxygen . Similarly , quicklime is a compound of a metal ...
Σελίδα 19
... carbon dioxide as elements of limestone , though we may call them the constituents of limestone . The elements of limestone are calcium , carbon , and oxygen . In science every word has a very definite meaning , and words of slightly ...
... carbon dioxide as elements of limestone , though we may call them the constituents of limestone . The elements of limestone are calcium , carbon , and oxygen . In science every word has a very definite meaning , and words of slightly ...
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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.