Suggestions to Teachers: Designed to Accompany the Elementary Principles of ChemistryD. Appleton, 1901 - 48 pagini |
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Pagina 7
... heat ( Chapter V , Law 2 ) , which , like the preceding , involve no chemical re- actions . These experiments and the accompanying calcu- lations are very helpful in clarifying the student's ideas . Especially is this true as to the ...
... heat ( Chapter V , Law 2 ) , which , like the preceding , involve no chemical re- actions . These experiments and the accompanying calcu- lations are very helpful in clarifying the student's ideas . Especially is this true as to the ...
Pagina 11
... heat sufficiently before pouring into water ; if so , I have them try again . As there is no change in weight in passing from the plastic to the brittle condition , it is , of course , important that the sam- ple shall be well dried ...
... heat sufficiently before pouring into water ; if so , I have them try again . As there is no change in weight in passing from the plastic to the brittle condition , it is , of course , important that the sam- ple shall be well dried ...
Pagina 12
... heat is applied slowly and the mixture shaken . Number 15 / 2 - I have found magnesium in the form of ribbon preferable for this and similar experiments . Number 15 / 4 - The oxidation of the lead is slow , espe- cially if the powder is ...
... heat is applied slowly and the mixture shaken . Number 15 / 2 - I have found magnesium in the form of ribbon preferable for this and similar experiments . Number 15 / 4 - The oxidation of the lead is slow , espe- cially if the powder is ...
Pagina 16
... heat of reaction . evaporates the alcohol if too much be not used . In color the mercuric and the mercurous iodide are somewhat variable , and they are sensitive to light . The former sometimes responds well to the tests even if the ...
... heat of reaction . evaporates the alcohol if too much be not used . In color the mercuric and the mercurous iodide are somewhat variable , and they are sensitive to light . The former sometimes responds well to the tests even if the ...
Pagina 17
... heating . Then , too , the porcelain is likely to be corroded by reduction , and I have seen the nitride formed in some instances . The product is often very dark - colored . On the other hand , the second method gives a cleaner ...
... heating . Then , too , the porcelain is likely to be corroded by reduction , and I have seen the nitride formed in some instances . The product is often very dark - colored . On the other hand , the second method gives a cleaner ...
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