The New Encyclopaedia Britannica, Volume 24Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 242
... acid . Hydrogen chloride may be formed by direct combination of chlorine ( Cl2 ) gas and hydro- gen ( H2 ) gas when the mixture is heated above 250 ° C ( 482 ° F ) . The reaction , given in the equation H2 + Cl2 → 2HCl , is accompanied ...
... acid . Hydrogen chloride may be formed by direct combination of chlorine ( Cl2 ) gas and hydro- gen ( H2 ) gas when the mixture is heated above 250 ° C ( 482 ° F ) . The reaction , given in the equation H2 + Cl2 → 2HCl , is accompanied ...
Page 243
... acid is prepared by dissolving gaseous hydro- gen iodide in water or by reaction of iodine with hydrogen sulfide in solution , the equa- tion being 12 + H2S S + 2HI . The aque- ous solution is a strong acid ; i.e. , in water , the ...
... acid is prepared by dissolving gaseous hydro- gen iodide in water or by reaction of iodine with hydrogen sulfide in solution , the equa- tion being 12 + H2S S + 2HI . The aque- ous solution is a strong acid ; i.e. , in water , the ...
Page 457
... acid ( cis ) НС - СООН || HOOC - CH fumaric acid ( trans ) As a result of their different configurations , these two substances have widely different properties . Maleic acid melts at 130 ° C ; fu- maric acid , at 270 ° C. When heated ...
... acid ( cis ) НС - СООН || HOOC - CH fumaric acid ( trans ) As a result of their different configurations , these two substances have widely different properties . Maleic acid melts at 130 ° C ; fu- maric acid , at 270 ° C. When heated ...
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19th century acid Africa agricultural ancient Arabic atoms became behaviour British Buddhist called centimetres central centre chemical China Chinese Christian church classification courtesy culture death dynasty early east eastern elected emperor England English French genus German Greek Han dynasty hexachord Hittite Hoa Hao Holy Hurrian hydrogen hydrogen chloride illus important Indian industrial influence island Japan Japanese Jewish king known Lake land language later literary London major ment metres modern mountain Museum Muslim National National Portrait Gallery North northern organization origin painting passim philosopher plant poems poet political port produced Province reactions reform region religious River Roman served social southern species sq km structure style Taoist text article covers text biography theory tion town tradition University West West Germany western World World War II