When electrons are removed from the outermost shell of a calcium atom, the atom becomes A)an anion that has a larger radius than the atom.

B) an anion that has a smaller radius than the atom.

C)a cation that has a larger radius than the atom.

D) a cation that has a smaller radius than the atom.

A cation that has a smaller radius than the atom.

Explanation: when electrons are removed from the outermost shell of a calcium atom, the atom becomes a cation that has a smaller radius than the atom.

dynamic equilibrium is the answer.

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

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