例句與造句

1. EDTA, ethylenediaminetetraacetic acid, has four carboxyl groups and two amine groups that can act as electron pair donors, or Lewis bases.
2. The pair of cysteines may be oxidized ( forming an internal disulfide ) or reduced ( as free thiols ), and thus allows for oxidoreductase activity by serving as an electron pair donor or acceptor, depending on oxidation state.
3. Alternate definitions of bases include electron pair donors ( Lewis ), as sources of hydroxide anions ( Arrhenius ) and can be ( commonly ) thought of as any chemical compound that, when dissolved in water, gives a solution with a pH higher than 7.0.
4. Because the oxygen atom in water has two lone pairs, water often acts as a Lewis base, or electron pair donor, in reactions with Lewis acids, although it can also react with Lewis bases, forming hydrogen bonds between the electron pair donors and the hydrogen atoms of water.
5. Because the oxygen atom in water has two lone pairs, water often acts as a Lewis base, or electron pair donor, in reactions with Lewis acids, although it can also react with Lewis bases, forming hydrogen bonds between the electron pair donors and the hydrogen atoms of water.
6. It's difficult to find electron pair donor in a sentence. 用electron pair donor造句挺難的