The equilibrium constant, kp, equals 3.40 at 25°c for the isomerization reaction: cis-2-butene ⇌ trans-2-butene. if a flask initially contains 1.00 atm of each gas, in what direction will the system shift to reach equilibrium?

The reaction will proceed to the right (favoring the products).

Explanation:

Let's consider the following isomerization reaction.

cis-2-butene ⇌ trans-2-butene

To predict in what direction will shift to reach equilibrium, we have to calculate the reaction quotient (Qp).

Since Qp (1.00) < Kp (3.40), the reaction will proceed to the right, so that the pressure of the product increases, the pressure of the reactant decreases, and Qp reaches the value of Kp.

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- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms