配套习题-化学方程式的配平 -【青果学院】

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1.2013年6月，我国拟用长征二号改进型火箭发射神舟十号载人飞船，火箭所用的燃料液态偏二甲肼（C₂H₈N₂）与N₂O₄发生的反应可写作：C₂H₈N₂+2N₂O₄═3N₂↑+2CO₂↑+nH₂O↑，则n等于

A: 2

B: 3

C: 4

D: 5

提示1：5qC55o2u5Y+N5bqU5YmN5ZCO5Y6f5a2Q55qE5Liq5pWw5LiN5Y+Y77yM5Y+N5bqU54mp5Lit5Y+q5pyJ5rC05Lit5pyJ5rCi5Y6f5a2Q77yM5bCx5LuO5rCi5Y6f5a2Q55qE5Liq5pWw5YWl5omL44CC5YaN5Lul5rCn5Y6f5a2Q55qE5Liq5pWw5qOA6aqM44CC
答案：Qw==
55Sx6aKY5oSP77yM54Gr566t5omA55So55qE54eD5paZ5ray5oCB5YGP5LqM55Sy6IK877yIQzxzdWI+Mjwvc3ViPkg8c3ViPjg8L3N1Yj5OPHN1Yj4yPC9zdWI+77yJ5LiOTjxzdWI+Mjwvc3ViPk88c3ViPjQ8L3N1Yj7lj5HnlJ/nmoTlj43lupTlj6/lhpnkvZzvvJpDPHN1Yj4yPC9zdWI+SDxzdWI+ODwvc3ViPk48c3ViPjI8L3N1Yj4rMk48c3ViPjI8L3N1Yj5PPHN1Yj40PC9zdWI+4pWQM048c3ViPjI8L3N1Yj7ihpErMkNPPHN1Yj4yPC9zdWI+4oaRK25IPHN1Yj4yPC9zdWI+T+KGke+8jOagueaNruWPjeW6lOWJjeWQjuawouWOn+WtkOeahOaVsOebruebuOetie+8jOWImTg9Mm7vvIxuPTTvvI48YnI+5pWF6YCJ77yaQ++8jg==

本课配套习题挑战模式2/5

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2.配平8Al+3Fe₃O₄

XFe+4Al₂O₃反应式时，Fe前面的系数X应是

A: 3

B: 6

C: 9

D: 12

提示1：5qC55o2u5Y+N5bqU5YmN5ZCO5Y6f5a2Q55qE5Liq5pWw5LiN5Y+Y77yM5LuO6ZOB5Y6f5a2Q55qE5Liq5pWw5YWl5omL44CC
答案：Qw==
5qC55o2u5Y+N5bqU55qE5YyW5a2m5pa556iL5byPOEFsKzNGZTxzdWI+Mzwvc3ViPk88c3ViPjQ8L3N1Yj48aW1nIHdpZHRoPTUwIGhlaWdodD00MCBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0QwL0Q4L3JCQUNKbFpOZVRLRFlNc1hBQUFCLW9Qd2ZDSTYzNi5wbmciID5YRmUrNEFsPHN1Yj4yPC9zdWI+TzxzdWI+Mzwvc3ViPu+8jOWPjeW6lOWJjeWQjumTgeWOn+WtkOaVsOebruebuOetie+8jOWImTPDlzM9WCDvvJsgWD0577yO

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3.2013年4月，四川雅安发生了7.0级地震．震后灾区人民的饮用水可用漂白粉消毒．漂白粉的制取原理为：2Cl₂+xCa（OH）₂═CaCl₂+Ca（ClO）₂+2H₂O，此反应中x的数值为

A: 1

B: 2

C: 3

D: 4

提示1：5qC55o2u5Y+N5bqU5YmN5ZCO5Y6f5a2Q55qE5pWw55uu5LiN5Y+Y77yM5LuO5rCv56a75a2Q5oiW6ZKZ56a75a2Q5YWl5omL5Z2H5Y+v44CC
答案：Qg==
6LSo6YeP5a6I5oGS5a6a5b6L77ya5Y+N5bqU5YmN5ZCO5ZCE5Y6f5a2Q55qE5pWw55uu5LiN5Y+Y77yM5Y+N5bqU5YmN5ZCO6ZKZ5Y6f5a2Q5Liq5pWw55u4562J77yM5YiZeD0xKzHvvIx4PTLvvI48YnI+5pWF6YCJQu+8jg==

本课配套习题挑战模式4/5

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4.神州十号载人飞船发射时，其中的一个反应为：N₂H₄+2H₂O₂═N₂↑+x H₂O，式中x的值是

A: 1

B: 2

C: 3

D: 4

提示1：5Y+N5bqU5YmN5ZCO77yM5Y6f5a2Q56eN57G744CB5pWw55uu5Z2H5LiN5Y+Y77yM5o2u5q2k55Sx5Y+N5bqU55qE5YyW5a2m5pa556iL5byP6K6h566X5Ye6eOeahOaVsOWAvOWNs+WPr+OAgg==
答案：RA==
55Sx5Y+N5bqU55qE5YyW5a2m5pa556iL5byP5piv77yaTjxzdWI+Mjwvc3ViPkg8c3ViPjQ8L3N1Yj4rMkg8c3ViPjI8L3N1Yj5PPHN1Yj4yPC9zdWI+4pWQTjxzdWI+Mjwvc3ViPuKGkSt4SDxzdWI+Mjwvc3ViPk/vvIznlLHlj43lupTliY3lkI7msKfljp/lrZDmlbDnm67nm7jnrYnvvIzliJkyw5cyPXjDlzHvvIx4PTTvvI48YnI+5pWF6YCJ77yaRO+8jg==

本课配套习题挑战模式5/5

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5.化学方程式aC₂H₂+bO₂

cH₂O+dCO₂配平后a、b、c、d之和为

A: 15

B: 14

C: 13

D: 10

提示1：5pys6aKY5Y+v5Lul6YeH55So6KeC5a+f5rOV6YWN5bmz77yM5bCGQzxzdWI+Mjwvc3ViPkg8c3ViPjI8L3N1Yj7kvZzkuLrln7rlh4bnianotKjvvIzljrvphY3lubPlhbbku5bnianotKjjgII=
答案：Qw==
6aaW5YWI6YWN5bmz5YyW5a2m5pa556iL5byP77yaMkM8c3ViPjI8L3N1Yj5IPHN1Yj4yPC9zdWI+KzVPPHN1Yj4yPC9zdWI+PGltZyB3aWR0aD01MCBoZWlnaHQ9NDAgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC9EMC9EOC9yQkFDSmxaTmVTbURBM21nQUFBQi1BY1pMTW81NjkucG5nIiA+Mkg8c3ViPjI8L3N1Yj5PKzRDTzxzdWI+Mjwvc3ViPu+8jOWGjeaKiuWQhOezu+aVsOeahOWSjOWKoOi1t+adpe+8mjIrNSsyKzQ9MTPvvIzlm6DmraRB44CBQuOAgUTpgInpobnpg73plJnor6/vvI4=

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