November 2018 1 1K Report
Diketahui:
∆H°f CaH2(s)= -189kj/mol
∆H°f H2O(l)= -285kj/mol
∆H°f Ca(OH)2(s)= - 197kj/mol
perubahan entalpi dari reaksi:
CaH2+ (s)+2H2O(l) -> Ca(OH)2(s)+2H2(g) adalah..
mohon banget di jawab sm caranya

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