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Unformatted text preview: 3 O 4 + CO => CO 2 + Fe, is balanced and the coefficients are expressed as the LOWEST set of integers, the sum of the balancing coefficients is: a. 10 b. 12 c. 14 d. 16 Q8 If the skeleton equation, Na + H 2 O => NaOH + H 2 , is balanced and the coefficients are expressed as the LOWEST set of integers, the sum of the balancing coefficients is: a. 7 b. 8 c. 10 d. 12 Q9 Which of the following molecules formed in interstellar space contains a triple bond? a. Water b. Ammonia c. HCN d. CH 4 Q10 One of the major technologies in agriculture involves the production of fertilizer. The key reaction in the production of nitrogen fertilizers involves the reaction of nitrogen and hydrogen to produce ammonia. In 2000, the world production of ammonia was 130 million tonnes. How many tonnes of hydrogen were consumed by the production of ammonia worldwide? (A tonne is 1000 kg.) a. 130 M tonnes. b. 22.9 M tonnes. c. 6.4 M tonnes. d. 15.3 M tonnes....
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This note was uploaded on 10/19/2011 for the course CHEM 83 taught by Professor Bonk,j during the Fall '08 term at Duke.
- Fall '08