英语 无机物的命名.doc

The oxoacids?（含氧酸）are molecular（分子）?compounds that can be regarded as the parents of the oxoanions. The formulas of oxoacids are derived（衍生，得到）?from those of the corresponding（相应地）?oxoanions by adding enough hydrogen ions to balance the charges. For example, the sulfate ion, SO42-, needs two H+ ions to cancel(取消,平衡) its negative(负) charge, so sulfuric acid is the ?compound H2SO4. Similarly, the phosphate ion, PO43-, needs three H+ ions, so its parent(母体) acid is compound H3PO4, phosphoric acid. As these examples illustrate(描述), the names of the parent oxoacids are derived from those of the corresponding oxoanions by replacing the?–ate suffix with?–ic acid. In general, -ic oxoacids are the parents of?–ate oxoanions and?–ous oxoacids are the parents of?–ite oxoanions. The formulas of oxoacids are derived（衍生，得到）?from those of the corresponding（相应地）?oxoanions by adding enough hydrogen ions to balance the charges. 主语： the names of the parent oxoacids 谓语： are derived from 宾语： those of the corresponding oxoanions As these examples illustrate(描述), the names of the parent oxoacids are derived from those of the corresponding oxoanions by replacing the?–ate suffix with?–ic acid. ·主语： an ionic compound ·谓语： is named ·宾语： the cation name , the name of the anion 含氧酸可以被视为含有氧阴离子根源的分子化合物。 含氧酸的分子式是通过增加足够的氢离子数目与相应的含氧酸根阴离子化合价达到价态平衡而形成的。 例如，硫酸根离子需要两个氢离子来与它的负价平衡，所以硫酸的化学式是 。 同样地，磷酸跟离子需要三个氢离子，所以它的酸的母体化学式是 ，即磷酸。 就像这些例子描述的一样，含氧酸根的名字是将那些相关的含氧阴离子的后缀-ate替换成-ic acid。 一般而言，以-ic结尾的含氧酸的母体都是以-ate结尾的含氧阴离子，而以-ous结尾的其母体则是以-ite结尾的含氧阴离子。 Oxoacid→oxygen+acid hydrogen→hydro+-gen compound→com-+pound derive→de-+rive correspound→co-+repond balance→balan+-ce molecular→mole+cular oxoanion→oxygen+anion negative→negate+-ive sulfate→sulfur+-ate sulfuric→sulfur+-ic similarily→simila+-ry(similary)+-iy repalce→re-+palce general→gener+-al phosphate→phosphorus+-ate phosphoric→phorphorus+-ic