Suggestions to Teachers: Designed to Accompany the Elementary Principles of ChemistryD. Appleton, 1901 - 48 pagini |
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Pagina 32
... flame . It will serve through many repetitions . It is best always to wrap a towel about the generator . The phenomenon may be shown also with coal gas thus : Hold the sponge in the flame of a Bunsen burner , extinguish the flame , and ...
... flame . It will serve through many repetitions . It is best always to wrap a towel about the generator . The phenomenon may be shown also with coal gas thus : Hold the sponge in the flame of a Bunsen burner , extinguish the flame , and ...
Pagina 33
... flame is very smoky and the action quiet , but with the suitable quantity of air there is a flash of bright light and a sharp report . By calculation the maximum effect should be when 2 volumes of acetylene are mixed with 25 volumes of ...
... flame is very smoky and the action quiet , but with the suitable quantity of air there is a flash of bright light and a sharp report . By calculation the maximum effect should be when 2 volumes of acetylene are mixed with 25 volumes of ...
Pagina 34
... flame . Push up the sliding tube until its open end is about one half inch from the flame . Blow gently through this tube , and the stream of air from the lungs ignites at the gas flame . Then gently draw down the air tube , and the ...
... flame . Push up the sliding tube until its open end is about one half inch from the flame . Blow gently through this tube , and the stream of air from the lungs ignites at the gas flame . Then gently draw down the air tube , and the ...
Pagina 39
... flame when dropped in the chlorine . Sometimes the paper only chars . In the third jar , show the bleaching effect on some colored stuff - e . g . , some brightly colored flower . Into the fourth jar , lower a piece of phosphorus ...
... flame when dropped in the chlorine . Sometimes the paper only chars . In the third jar , show the bleaching effect on some colored stuff - e . g . , some brightly colored flower . Into the fourth jar , lower a piece of phosphorus ...
Pagina 40
... flame . 2. Place in a mortar a small quantity of potassium chlo- rate , hardly more than a pin - head in size , and shake on this a little sulphur powder . Rub with the pestle under some pressure , and the mixture explodes with ...
... flame . 2. Place in a mortar a small quantity of potassium chlo- rate , hardly more than a pin - head in size , and shake on this a little sulphur powder . Rub with the pestle under some pressure , and the mixture explodes with ...
Alte ediții - Afișează-le pe toate
Suggestions to Teachers: Designed to Accompany the Elementary Principles of ... A. V. E. Young Nu există previzualizare disponibilă - 2015 |
Suggestions to Teachers: Designed to Accompany the Elementary Principles of ... Abram Eps Van Young Nu există previzualizare disponibilă - 2016 |
Suggestions to Teachers: Designed to Accompany the Elementary Principles of ... A. V. E. Young Nu există previzualizare disponibilă - 2018 |
Termeni și expresii frecvente
2H₂O 2HCl 2NaOH acetylene alcohol Ammonium chloride apparatus APPLETON AND COMPANY barium chloride Botany bottle Boyle's Law CaCl2 calcium carbide carbonate catalogues cents Charles's Law chemical chlorate class results class room Clodd Cloth CO₂ College color combining weight Combustion commercial cork crys dealers diameter dilute dioxide dust Evaporating dish experiment flame give glass grams Green & Company H₂O heat hydrochloric acid hydrogen hydroxide ignite Illustrations inches instructor iodine laboratory lecture table liters magnesium matter mercury method MgSO4 naphthalene nitrate nitric acid Number oxide oxygen paper phosphorus Plant Relations potassium potassium chlorate powd powder preferable PRINCIPLES OF CHEMISTRY Professor pupil pure quantitative result quantity quizzing ratio reaction recommended rubber sample SHELDON AMOS side table sodium Sodium carbonate sodium oxide solution specific gravity stopper student sulphuric acid supplied temperature test-tubes tion topics tube TWENTIETH CENTURY TEXT-BOOKS University volume zinc