Select the correct answer. In a reaction where A + B AB, what does an equilibrium position of A= 14%, B = 14%, and AB= 72% indicate about the reaction? A. Because A and B are equal, the reaction has reached equilibrium. B. There is more A and B than AB at equilibrium, and the reaction favors the reactants. C. There is more AB than A and B at equilibrium, and the reaction favors the products. D. There is more AB than A and B at equilibrium, and the reaction favors the reactants. E. The reaction is not at equilibrium.

 C. There is more AB than A and B at equilibrium, and the reaction favors the products.

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alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.