在H、C、O、Na四种元素中，选择一种或若干种用化学式填写下列空格
侯英超 |
发布日期：2010-05-11 05:54:07
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在H、C、O、Na四种元素中，选择一种或若干种用化学式填写下列空格： ⑴金属单质________ ⑵有毒的氧化物________ ⑶相对分子质量最小的氧化物________ ⑷家庭厨房中蒸馒头的一种盐________ ⑸雪碧等饮料中常含的一种酸________ ⑹能支持动物呼吸的一种单质________。 |
