Applied Chemistry: An Elementary Text Book for Secondary SchoolsC.V. Mosby Company, 1922 - 461 σελίδες |
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Σελίδα 28
... pound ends in ate , with few exceptions which need not be mentioned here , the compound contains oxygen , in ad- dition to the other elements named . Thus , sodium chlo- S Fig . 2. Showing the " north " end of a magnetic needle being ...
... pound ends in ate , with few exceptions which need not be mentioned here , the compound contains oxygen , in ad- dition to the other elements named . Thus , sodium chlo- S Fig . 2. Showing the " north " end of a magnetic needle being ...
Σελίδα 31
... pounds . Such a change is spoken of as " Metathesis " or " Double Decomposition . " It may be illustrated by add- ing a few cubic centimeters of a solution of potassium io- dide to one of mercuric chloride in a test tube . Two new ...
... pounds . Such a change is spoken of as " Metathesis " or " Double Decomposition . " It may be illustrated by add- ing a few cubic centimeters of a solution of potassium io- dide to one of mercuric chloride in a test tube . Two new ...
Σελίδα 47
... pound is dissolved . The amount of blue vitriol present is so small as to have no appreciable effect upon the human system , but is destructive to the algæ . By some it is thought that the copper enters into combination with the albumin ...
... pound is dissolved . The amount of blue vitriol present is so small as to have no appreciable effect upon the human system , but is destructive to the algæ . By some it is thought that the copper enters into combination with the albumin ...
Σελίδα 73
... pound . At that time , the presence of argon was not known and the apparent unvarying proportion of oxygen and nitrogen led chemists to believe they were in com- bination . 3. Proportions of These Constituents . By volume the oxygen in ...
... pound . At that time , the presence of argon was not known and the apparent unvarying proportion of oxygen and nitrogen led chemists to believe they were in com- bination . 3. Proportions of These Constituents . By volume the oxygen in ...
Σελίδα 74
... pound consists of two or more elements in unvarying proportions . In the air the oxygen may vary as much as three - fourths of 1 per cent . Not only these , but other proofs make it sure that the air is a mixture and not a compound . By ...
... pound consists of two or more elements in unvarying proportions . In the air the oxygen may vary as much as three - fourths of 1 per cent . Not only these , but other proofs make it sure that the air is a mixture and not a compound . By ...
Άλλες εκδόσεις - Προβολή όλων
Applied Chemistry: An Elementary Text Book for Secondary Schools (Classic ... Fredus N. Peters Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Applied Chemistry: An Elementary Text Book for Secondary Schools (Classic ... Fredus N. Peters Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Συχνά εμφανιζόμενοι όροι και φράσεις
2H₂O alcohol alkali alloys alum aluminum ammonia ammonium amount antimony arsenic arsine atomic weight blue boiling bromine burning calcium called carbon dioxide carbon monoxide cent Characteristics chemical coal color combustion common salt compounds contain copper crystals decomposed dissolved elements equation Exercises for Review ferric ferrous flame foods formula furnace gases Give glass grams H₂O H₂SO heat hence hydrate hydrochloric acid hydrogen chloride hydroxide ignited iodine ions iron known light lime liquid liter magnesium melting mercury metal method mixed mixture molecular weight molecules monoxide Name nitrate nitric acid nitrogen obtained occurs oxide oxygen ozone phosphorus platinum potassium potassium chlorate pounds powder prepared pressure produced quantities reaction removed seen silicate silver soap soda sodium carbonate sodium hydroxide solid soluble in water solution starch substances sugar sulphate sulphide sulphur dioxide sulphuric acid temperature tion tube usually valence vapor variety volume yellow zinc zine
Δημοφιλή αποσπάσματα
Σελίδα 173 - ... gas may be expelled from a liquid, viz. : 1. When the liquid is supersaturated, the excess gas is expelled. 2. By heating the liquid, when some of the gas is expelled due to an increase in its volume. 3. By pressure reduction, as in the Elmore vacuum process, where, according to the law of Henry,14 "the amount of gas dissolved by a liquid is proportional to the pressure to which the gas is subjected.
Σελίδα 100 - Weights. — The molecular weight of a substance is the sum of the weights of the atoms constituting a molecule of that particular substance.
Σελίδα 251 - ... in the form of a fine powder, known as flowers of sulphur, and composed of minute crystals.
Σελίδα 266 - In this way he had lithium, glucinum, boron, carbon, nitrogen, oxygen, fluorine, sodium, magnesium, aluminum, silicon, phosphorus, sulphur, chlorine, potassium, calcium, and so on.
Σελίδα 96 - Risteen's work upon molecules (now for many years a standard authority), the distance from the center of one molecule to the center of its neighbor is put, on the average, as ten times the molecular diameter.
Σελίδα 101 - Avogadro that equal volumes of all gases under the same pressure and temperature contain the same number of molecules.
Σελίδα 89 - In the mercurial barometer at sea level, the pressure of the air supports a column of mercury 30 inches in height or, in other words, the weight of 30 inches of mercury.
Σελίδα 266 - Mendeleeff arranged the elements in the order of their atomic weights, beginning with the lightest, but omitting hydrogen.
Σελίδα 384 - Orichalcum may be defined as an alloy of copper and zinc in which the proportion of zinc is high enough to give it a color that is appreciably different from that of copper, and in which the proportion of any other metal, or combination of other metals, is considerably lower than that of the zinc.
Σελίδα 26 - Per Cent Oxygen 49.98 Silicon 25.30 Aluminum 7.26 Iron 5.08 Calcium 3.51 Magnesium , 2.50 Sodium 2.28 Potassium 2.23 Hydrogen 0.94 Titanium 0.30 Carbon 0.21 Chlorine and Bromine 0.15 Phosphorus 0.09 Manganese 0.07 All others . 0.10 Total 100.00 Table II.