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数学
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配平 C19H25NO4+O2==点燃==CO2+NO2(或N2)+H2O
人气:402 ℃ 时间:2019-12-09 18:02:10
解答
4 C19H25NO4 + 97 O2 ==点燃== 76 CO2 + 4 NO2 + 50 H2O
4 C19H25NO4 + 93 O2 ==点燃== 76 CO2 + 2 N2 + 50 H2O
思路很简单,确定C19H25NO4的化学计量数为1,
然后配平C、N、H,
最后数一数右边有几个O,确定反应物O2的化学计量数,
最后乘以公分母,把分数化为整数
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