一个化学式中有三个元素,怎样根据它们的化合价确定它们的角标?比如:AI2O3+NaOH=NaAlO2+H2O(暂不配平)我知道Na+1价,Al+3价,O-2价 怎样得出NaAlO2的角标?
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![一个化学式中有三个元素,怎样根据它们的化合价确定它们的角标?比如:AI2O3+NaOH=NaAlO2+H2O(暂不配平)我知道Na+1价,Al+3价,O-2价 怎样得出NaAlO2的角标?](/uploads/image/z/2256361-25-1.jpg?t=%E4%B8%80%E4%B8%AA%E5%8C%96%E5%AD%A6%E5%BC%8F%E4%B8%AD%E6%9C%89%E4%B8%89%E4%B8%AA%E5%85%83%E7%B4%A0%2C%E6%80%8E%E6%A0%B7%E6%A0%B9%E6%8D%AE%E5%AE%83%E4%BB%AC%E7%9A%84%E5%8C%96%E5%90%88%E4%BB%B7%E7%A1%AE%E5%AE%9A%E5%AE%83%E4%BB%AC%E7%9A%84%E8%A7%92%E6%A0%87%3F%E6%AF%94%E5%A6%82%3AAI2O3%2BNaOH%3DNaAlO2%2BH2O%28%E6%9A%82%E4%B8%8D%E9%85%8D%E5%B9%B3%EF%BC%89%E6%88%91%E7%9F%A5%E9%81%93Na%2B1%E4%BB%B7%2CAl%2B3%E4%BB%B7%2CO-2%E4%BB%B7+%E6%80%8E%E6%A0%B7%E5%BE%97%E5%87%BANaAlO2%E7%9A%84%E8%A7%92%E6%A0%87%3F)
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