Elementary Household Chemistry: An Introductory Textbook for Students of Home EconomicsMacmillan, 1914 - 307 σελίδες |
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Σελίδα 26
... molecules would appear larger than small shot but smaller than cricket balls . Even invisible gases are regarded as composed of molecules , and it has been estimated that one cubic centimeter of gas ( measured at ordinary tempera- ture ...
... molecules would appear larger than small shot but smaller than cricket balls . Even invisible gases are regarded as composed of molecules , and it has been estimated that one cubic centimeter of gas ( measured at ordinary tempera- ture ...
Σελίδα 29
... molecules one the molecule of calcium oxide , the other the molecule of carbon dioxide . The molecules of compounds are conceived to be made up of particles of the constituent elements of the compounds . Such particles of the elements ...
... molecules one the molecule of calcium oxide , the other the molecule of carbon dioxide . The molecules of compounds are conceived to be made up of particles of the constituent elements of the compounds . Such particles of the elements ...
Σελίδα 30
... molecules . Heating , for example , is believed to make the molecules move faster . But any change which results in a disruption of the molecule or a rearrangement of the atoms so as to form new molecules is a chemical change . In ...
... molecules . Heating , for example , is believed to make the molecules move faster . But any change which results in a disruption of the molecule or a rearrangement of the atoms so as to form new molecules is a chemical change . In ...
Σελίδα 31
... molecules of silver chloride ; and the sodium atoms , originally united with the chlorine atoms , transfer their allegiance from chlorine to nitrogen and oxygen . AgCl + NaNO3 AgNO3 + NaCl = By measuring the proportions in which the ...
... molecules of silver chloride ; and the sodium atoms , originally united with the chlorine atoms , transfer their allegiance from chlorine to nitrogen and oxygen . AgCl + NaNO3 AgNO3 + NaCl = By measuring the proportions in which the ...
Σελίδα 32
... ( molecules ) of every compound are made up of atoms of the elements of that compound , originated with Dalton . The word atom ( Greek , atomos , from a , not , and temno , cut ) implies indivisibility . Until recently the atoms of the ...
... ( molecules ) of every compound are made up of atoms of the elements of that compound , originated with Dalton . The word atom ( Greek , atomos , from a , not , and temno , cut ) implies indivisibility . Until recently the atoms of the ...
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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.