January 2019 2 91 Report
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Boleh menggunakan gambar maupun huruf latex
Bertanya di komentar!

Kalor yang dihasilkan dari pembakaran 15 gram etana (C₂H₆) (Ar C = 12 dan Ar H = 1)
Menurut reaksi :

2C₂H₆ (g) + 7 O₂ (g) →→→→ 4 CO₂ (g) + 6 H₂) ΔH = - 3.084 kJ

adalah....

A. -385,5 kJ
B. -771 kJ
C. -1.542 kJ
D. -1.850 kJ
E. -3.084 kJ
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