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- Water contains hydrogen and oxygen. 水含有氢和氧。
- covalent hydrogenate 共价型氢化物
- Water is composed of hydrogen and oxygen. 水由氢和氧组成。
- Water is composed of the elements hydrogen and oxygen. 水是由氢元素和氧元素组成的。
- In covalent bonding, atoms share electrons. 在共价键联中，原子共有电子。
- Sharing of electrons and form a strong covalent. 彼此分享各自的电子而形成了坚固的共价键
- Water may be resolved into hydrogen and oxygen. 水可以分解为氢和氧。
- High temperatures are required, however, because the metal atoms grip the hydrogen with strong covalent bonds. 然而，温度还是要够高，因为金属原子会以键结力强的共价键抓住氢。
- The hydrogen is the known the lightest element. 氢是已知的最轻的元素。
- Hydrogen and oxygen combine/Hydrogen combines with oxygen to form water. 氢与氧化合成水。
- A molecule of water consists of two atoms of hydrogen and one atom of oxygen. 水分子含有两个氢原子和一个氧原子。
- Water can be dissolved into hydrogen and oxygen. 水能分解成氢和氧。
- Both hydrogen and oxygen are elements. 氢和氧都是化学元素。
- Hydrogen is a one-valence element. 氢是一价的元素。
- The atom that contributes no electrons to a covalent bond. 受体没有给共价键提供电子的原子。
- Water is a compound of hydrogen and oxygen. 水是氢和氧的化合物。
- The moiety can provide covalent interaction with sugars. 其含有硼酸部分，可以与醣类分子以共价键键结。
- This metal acts on water to set hydrogen free. 这种金属作用于水，就释放了氢气。
- Water can be broken down into hydrogen and oxygen. 水可以分解为氢和氧。
- Water is made up of oxygen and hydrogen. 水是由氢和氧构成的。
