Elementary Household Chemistry: An Introductory Textbook for Students of Home EconomicsMacmillan, 1914 - 307 σελίδες |
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Σελίδα 33
... Aluminium Al 27.1 Neodymium Nd 144.3 Antimony Sb I 20.2 Neon Ne 20.2 Argon A 39.88 Nickel Ni 58.68 Arsenic As 74.96 Niton ( radium ema- Barium Ba 137-37 nation ) . Nt 222.4 Bismuth Bi 208.0 Nitrogen . N 14.01 Boron B II.O Osmium Os ...
... Aluminium Al 27.1 Neodymium Nd 144.3 Antimony Sb I 20.2 Neon Ne 20.2 Argon A 39.88 Nickel Ni 58.68 Arsenic As 74.96 Niton ( radium ema- Barium Ba 137-37 nation ) . Nt 222.4 Bismuth Bi 208.0 Nitrogen . N 14.01 Boron B II.O Osmium Os ...
Σελίδα 87
... aluminium sul- phate Al2 ( SO4 ) 3 , rather than Al2S3O12 . For the same reason , in writing the formulas of the ... aluminium atom replaces three atoms of hydrogen . The formulas of aluminium nitrate , sulphate , and phosphate are ...
... aluminium sul- phate Al2 ( SO4 ) 3 , rather than Al2S3O12 . For the same reason , in writing the formulas of the ... aluminium atom replaces three atoms of hydrogen . The formulas of aluminium nitrate , sulphate , and phosphate are ...
Σελίδα 88
An Introductory Textbook for Students of Home Economics John Ferguson Snell. Aluminium has a valence of three . It is trivalent . Some metals have one valence in one set of compounds and another valence in another set . Thus , iron in ...
An Introductory Textbook for Students of Home Economics John Ferguson Snell. Aluminium has a valence of three . It is trivalent . Some metals have one valence in one set of compounds and another valence in another set . Thus , iron in ...
Σελίδα 92
... aluminium . To what class do all three of these substances belong ? Lay the sodium on filter paper for a few seconds to free it from oil , then wrap it in the lead foil ( or oiled paper ) leaving a small opening at one end . Fill a test ...
... aluminium . To what class do all three of these substances belong ? Lay the sodium on filter paper for a few seconds to free it from oil , then wrap it in the lead foil ( or oiled paper ) leaving a small opening at one end . Fill a test ...
Σελίδα 93
... Aluminium foil inch inch , two or three pieces . ( a ) Put a piece of aluminium foil in a test tube of hot water . ( b ) Heat the liquid left in the dish in Experiment 44 , and put in a piece of aluminium foil . What difference do you ...
... Aluminium foil inch inch , two or three pieces . ( a ) Put a piece of aluminium foil in a test tube of hot water . ( b ) Heat the liquid left in the dish in Experiment 44 , and put in a piece of aluminium foil . What difference do you ...
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.