Chemistry, 14.09.2019 09:30, des7900

Data: a h f values: ch 4( g), -74.8 kj; co 21 g), -393.5 kj; h 20( 1), -285.8 kj. using the a h f data above, calculate a h xn for the reaction below. reaction: ch 4( 9) + 20 2( 9) => co 2(g) + 2h 2011) selected d. -890.3 kj correct d. -890.3 kj

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Data: a h f values: ch 4( g), -74.8 kj; co 21 g), -393.5 kj; h 20( 1), -285.8 kj. using the a h...