举一反三
- In an ionic solid, positive and negative ions are bound in the lattice by ionic bonding forces.
- The solubility of an insoluble compound is independent of the ionic strength of the solution.
- Ionic compounds have the following properties except for ________. A: have high melting and boiling points. B: are soluble in water C: can conduct electricity D: shatter easily
- The non-covalent intermolecular forces described in this video behave differently. How are the forces ranked in terms of their energy? A: Van Der Waals > Ionic > Hydrogen bonds B: Ionic > Van Der Waals > Hydrogen bonds C: Ionic > Hydrogen bonds > Van Der Waals D: Hydrogen bonds > Ionic > Van Der Waals
- The solubility product expression for the ionic compound AxByis A: [Ay-]y[Yx-]x B: [Ay-][Yx-] C: [Ay-]x[Yx-]y D: [Ax-]x[Yy-]y
内容
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The active pharmacodynamic conformation of flexible small molecules is generally A: Conformation in the lattice B: Conformation in a vacuum C: A local low energy conformation D: Solution conformation
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Of the compounds below, __________ has the smallest ionic separation. A: K2S B: RbCl C: SrBr2 D: KF E: RbF
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Hydrogen, which is ______ than off, is pretty easy to produce and does no harm to the environment. A: much energy more abundant source B: an energy source more abundant C: a much more energy abundant source D: a much more abundant energy source
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At a constant pH and ionic strength, the solubility of most proteins increases with increasing temperature in the range of 0 to ( ) °C. A: 20 B: 40 C: 60 D: 80
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An ionic crystal consists of cations and anions, therefore, the ionic crystal can conduct electricity.