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acid-former action acts alcohol alloy aluminum ammonia ammonium amount anhydrid arsenic atomic weights base base-former boiling point bromin burning calcium called carbon dioxid charcoal chemical chromium coal color colorless combustion composition compounds contains converted copper crystals decomposes decomposition density dilute dissolves electricity electrolysis elements energy equation equilibrium ferric flame fluorin formula gases glass gold grams H₂O heated hence hydrochloric acid hydrogen chlorid hydrogen sulfid insoluble ions iron known liberated liquid liter magnesium manganese manganese dioxid matter melts mercury metal mixture mole molecules nitrate nitric acid nitrogen non-metallic obtained oxidizing agent oxygen particles phosphate phosphorus potassium chlorate powder prepared pressure properties proportions reacting weight reaction takes place readily resembles salts silicate silicon silver soda sodium hydroxid sodium sulfate solid soluble solution stances substance sugar sulfate sulfur dioxid sulfuric acid tion tube unite valence vapor volume zinc
Page 71 - Again nitrogen and oxygen form five compounds in the following ratios : 28:16, 14:16,28:48, 14:32, and 28:80, in which it will be seen that 7 parts of nitrogen are combined with 4, 8, 12, 16, and 20 parts of oxygen. This was stated by Dalton in the law of multiple proportions: If two elements unite in more than Substance Total weight Weight oxygen Weight hydrogen Weight chlorine Oxveen 32 32 Water 18.
Page 159 - Solution a. A quantity of any substance equal to its molecular weight in grams is a mole of that substance. Further, a mole of any substance contains the same number of molecules as a mole of any other material. This number is called Avogadro's number and equals 6.02 X 10" molecules per mole (Appendix A).
Page 407 - Inches Feet Miles Meters Kilometers Square inches Square yards Square centimeters Square meters Cubic inches Cubic yards Cubic centimeters Cubic meters Fluid ounces Quarts Cubic centimeters Liters Grains Ounces...
Page 28 - In the process of respiration some of the oxygen in the inhaled air is absorbed by the blood and carried to all parts of the body, where it combines with the hydrogen and carbon of the worn-out tissues.
Page v - ... world of industry. He should know that in the past chemistry has been one of the great forces which have determined the civilization and development of mankind, and should feel certain that in the future its importance will not be less. Consequently, the authors have tried to bring out the humanistic side of the science, to use as far as possible that material which is laden with intense human interest because of its significance to the race.