The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 103
... metal ion , the oxide ion donating shares in two pairs of electrons to the metal . The fluoride ion is too electronega- tive to donate electrons in this fashion . Low oxidation states occur with so - called back - bonding ligands , such ...
... metal ion , the oxide ion donating shares in two pairs of electrons to the metal . The fluoride ion is too electronega- tive to donate electrons in this fashion . Low oxidation states occur with so - called back - bonding ligands , such ...
Page 572
... metal : 2Cr2O3 + 3Si = 4Cr + 3SiO2 . This reaction is carried out in an electric furnace since it is not self - sustaining . The resulting metal may contain up to 0.8 % silicon . Carbon may also be used as a reducing agent for Cr2O , to ...
... metal : 2Cr2O3 + 3Si = 4Cr + 3SiO2 . This reaction is carried out in an electric furnace since it is not self - sustaining . The resulting metal may contain up to 0.8 % silicon . Carbon may also be used as a reducing agent for Cr2O , to ...
Page 823
... metal content of coins , and even complete withdrawal of precious metals from coinage systems . Certain govern- ments resorted to gradual reduction , especially in the case of silver coins ; the effect of such debasement was a ...
... metal content of coins , and even complete withdrawal of precious metals from coinage systems . Certain govern- ments resorted to gradual reduction , especially in the case of silver coins ; the effect of such debasement was a ...
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