January 2019 1 34 Report
2H2 + O2 --> 2H2 O , ∆H= -570 KJ
2Ca + O2 --> CaO, ∆H= -1270 kj
CaO + H2O--> Ca (OH)2, ∆H= -64 KJ
Entalpi pembentukanCa(OH)2 Adalah...
a. -984 kj
b. -856 kj
c. -1161 kj
d. -1966 kj
e. -1904 kj
pake cara ya. pliss bgt

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