Why is kcl soluble in water but not in toluene​

 KCl is a polar compound while benzene is a nonpolar solution...in this case the solute and solvent are not alike in nature causing the insolubility of the KCl

Explanation:

the correct answer is option d

explanation:

i was wrong its d because they dont use cm when calculating square roots

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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~ trueboss72