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Formulae & Equation
Chemical formulae and equation
Term | Definition |
---|---|
RAM | RAM of an element is the number of times the mass of an atom is greater than 1/12 of the mass of a carbon-12 atom. |
RMM | RMM of a molecule is the number of time the mass of molecule is greater than 1/12 of the mass of a carbon-12 atom. |
RFM | RFM of a substance is the number of times the mass of an ionic substance greater than 1/12 of a carbon-12 atom. |
Molar volume | of a gas is the volume of 1 mol of gas under certain condition. |
+ | NH4,K,Na,Ag,H,Li,Rb,Cu,Hg |
+2 | Ba,Ca.Ni,Cu,Fe,Pb,Zn,Mg,Sn,Hg,Mn,Co |
+3 | Al,Fe,Cr |
- | F,Cl,Br,I,OH,NO3,MnO4,NO2,CIO3,CH3COO,H,HCO3 |
-2 | CO3,O,S,SO4,SO3,S2O3,Cr2O7,CrO4 |
-3 | PO4,PO3 |