September 2018 1 2K Report
Diketahui reaksi : 2C2H2(g) + 5O2(g) --> 4CO2(g) + 2H2O(g) . Delta H = -2.600 kj
jika entalpi pembentukan CO2 dan H2O berturut-turut -395 kj dan - 285 kj, entalpi pembentukan C2H2 sebesar ... kj. tolong ya sekaligus caranya
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