a, \(Ca\left(OH\right)_2\)
\(PTK_{Ca\left(OH\right)_2}=40+16.2+1.2=74đvC\)
b, \(Al_2\left(CO_3\right)_3\)
\(PTK=27.2+12.3+16.9=234đvC\)
c, Cu(NO3)2
\(PTK_{Cu\left(NO_3\right)_2}=64+14.2+16.6=188đvC\)
d, \(Fe_2O_3\)
PTKFe\(_2O_3\) = \(56.2+16.3=160đvC\)