Hints on the Teaching of Elementary Chemistry in Schools and Science ClassesLongmans, Green, 1896 - 76 páginas |
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Página 3
... character of the substance , and gave it the name chlorine , which refers solely to the yellowish - green colour of the gas , and not to any hypothesis as to its nature . But Davy succeeded only very gra- dually in getting rid of errors ...
... character of the substance , and gave it the name chlorine , which refers solely to the yellowish - green colour of the gas , and not to any hypothesis as to its nature . But Davy succeeded only very gra- dually in getting rid of errors ...
Página 7
... character , and graduated so as to lead on to more difficult operations , which should only be undertaken after some time and after demonstration by the teacher . It is a mistake to suppose that the great theories of chemistry can be ...
... character , and graduated so as to lead on to more difficult operations , which should only be undertaken after some time and after demonstration by the teacher . It is a mistake to suppose that the great theories of chemistry can be ...
Página 9
... differing in character : solution of alum mixed with ammonia gives a gelatinous precipitate ; calcium chloride with carbonate of ammonia a flocculent precipitate which becomes sandy on heating or Observation - Qualitative 9.
... differing in character : solution of alum mixed with ammonia gives a gelatinous precipitate ; calcium chloride with carbonate of ammonia a flocculent precipitate which becomes sandy on heating or Observation - Qualitative 9.
Página 11
... , before applying tests , an account of the appear- ance and more obvious characters of the substance analysed . CHAPTER II OBSERVATION - QUANTITATIVE QUANTITATIVE experiments may be gravimetric Observation - Qualitative II.
... , before applying tests , an account of the appear- ance and more obvious characters of the substance analysed . CHAPTER II OBSERVATION - QUANTITATIVE QUANTITATIVE experiments may be gravimetric Observation - Qualitative II.
Página 28
... character of such an answer may be thought to be exceptional ; but though it is true that such a crude form of statement is not common , the fact remains that names and formulæ are 28 Teaching of Elementary Chemistry.
... character of such an answer may be thought to be exceptional ; but though it is true that such a crude form of statement is not common , the fact remains that names and formulæ are 28 Teaching of Elementary Chemistry.
Otras ediciones - Ver todas
Hints on the Teaching of Elementary Chemistry in Schools and Science Classes ... William A. Tilden Sin vista previa disponible - 2018 |
Hints on the Teaching of Elementary Chemistry in Schools and Science Classes William A. Tilden Sin vista previa disponible - 2007 |
Términos y frases comunes
ammonia analysis ANATOMY apparatus Art Department ASTRONOMY atomic weight B.Sc BOTANY BUILDING CONSTRUCTION carbon chemical College of Science Coloured composition compounds containing copper Crown 8vo crucible D.Sc Diagrams Edition ELECTRICITY ELEMENTARY elements Engineering equivalent Examination Papers Examples experiment experimental formulæ gases gram homologous series Hospital hydrochloric acid hydrogen chloride Illus INORGANIC Lecturer LL.D Lond London magnesium Manual Maps MECHANICS metals molecular weight molecule of hydrogen neutralise nitrate nitric nitric acid nitrogen observation oxide oxygen Pathology Ph.D PHYSICS PHYSIOLOGY potassium potassium chlorate PRACTICAL precipitate Price Professor of Chemistry properties proportions pupil quantity REESE LIBRARY Royal 8vo Royal College salt SCHÄFER Science and Art sodium solution specific heat stage STRENGTH OF MATERIALS Students substances sulphate sulphuric acid Surgeon Syllabus teacher tellurium temperature TEXT-BOOK THEORETICAL theory tions trations TREATISE tube UNIVERSITY OF CALIFORNIA vapour densities vols volume of hydrogen Whitworth Scholar WILLIAM Woodcuts zinc
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