Chemistry, 18.05.2021 08:10 pmbeachy3102
Methane combusts according to the following thermochemical equation:
CH4(g) + 2O2(g) → CO2(g) + 2H2O(l) ΔH = -891 kJ
If 25 g of methane combusts, how much energy is released in the reaction?
(Show all work and answer with the correct significant figures and units.)
Answers: 2
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Select the correct value for the indicated bond angle in each of the compounds. o−o−oo−o−o angle of o3 90° 109.5° < 109.5° 120° < 120° 180° f−b−ff−b−f angle of bf3 180° < 109.5° < 120° 120° 109.5° 90° f−o−ff−o−f angle of of2 < 120° 120° 90° 109.5° 180° < 109.5° cl−be−clcl−be−cl angle of becl2 90° 109.5° 180° 120° < 109.5° < 120° f−p−ff−p−f angle of pf3 90° 109.5° < 109.5° 180° 120° < 120° h−c−hh−c−h angle of ch4 90° < 109.5° 180° 120° < 120° 109.5°
Answers: 1
Methane combusts according to the following thermochemical equation:
CH4(g) + 2O2(g) → CO2(g) + 2H2...
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