When determining the equilibrium concentrations for the reaction ; a simplifying assumption can be used under certain conditions to avoid solving a quadratic equation. Classify each situation by whether the simplifying assumption can be used or whether the quadratic formula is required. Use simplifying assumptions - Quadratic formula required 1. [AB] = 0.0178 M; 2. [AB] = 0.00204 M; 3. [AB] =0.451 M; = 0.000905 4. [AB] = 0.0174 M; = 0.0000925 5. [AB] = 0.396 M; = 0.00228

When the value of the equilibrium constant is much smaller than [AB], simplifying assumption can be used.

However, if the value of the equilibrium constant is closer to [AB], quadratic formula is required.

Explanation:

see picture

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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