Chemistry, 06.11.2019 05:31 majesticfart7736
B) 2c2h2(g) + 5o2(g)⟶4co2(g) + 2h2o(l) 6.54 calculate the heats of combustion for the following reactions from the standard enthalpies of formation listed in appendix 2: (a) c2h4(g) + 3o2(g) ⟶2co2(g) + 2h2o(l) (b) 2h2s(g) + 3o2(g) ⟶2h2o(l) + 2so2(g)
Answers: 2
Chemistry, 22.06.2019 12:00
Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.
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Chemistry, 22.06.2019 14:00
650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal
Answers: 2
B) 2c2h2(g) + 5o2(g)⟶4co2(g) + 2h2o(l) 6.54 calculate the heats of combustion for the following reac...
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