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Chemistry Tables

Chapter 4

elements oxidation # is zero
monatomic ions oxidation # equals charge on the ion
oxygen oxidation # is -2 on most compounds except peroxides
hydrogen oxidation # is +1 in most compounds, (-1 in metal binary compounds ex CaH2)
halogens oxidation # is -1 in F. Cl, Br, and I is -1 in binary compounds except when the other element is another halogen above it or oxygen
Compounds and ions oxidation # is the sum of numbers in compound=0 sum of numbers in polyatomic ions = charge on ion
CO3 2- evolves to CO2 + H2O
SO3 2- evolves to SO2 + H2O
S 2- evolves to H2S +H2O
Group 1A and NH4+ compounds soluble
C2H3O2- and NO3- soluble
Cl- Br- I- soluble except Ag, Hg, Pb bonded
SO4 2- soluble except Ca, Sr, Ba, Ag, Hg, Pb
CO3 2- insoluble except group 1A and NH4+
PO4 3- insoluble except group 1A and NH4+
S 2- insoluble except group 1A and NH4 +
OH- insoluble except group 1A, Ca, Ba, Sr
Created by: 1445396362142503