Monday 3 March 2014

Water can be used to dissolve many substances due to ________? a. it has a nonpolar molecular structure b. it has a unique linear shape c. it...

Choice a is incorrect. Water has a polar molecular structure. Polar substances have asymmetric structures with uneven charge distributions. Nonpolar substances are more symmetrical with even charge distributions


Choice b is incorrect. Water has a bent shape due to the presence of unshared electrons on the central oxygen atom.


Choice c is correct. The side of the water molecule with the oxygen atom has a partial negative charge due to the presence of...

Choice a is incorrect. Water has a polar molecular structure. Polar substances have asymmetric structures with uneven charge distributions. Nonpolar substances are more symmetrical with even charge distributions


Choice b is incorrect. Water has a bent shape due to the presence of unshared electrons on the central oxygen atom.


Choice c is correct. The side of the water molecule with the oxygen atom has a partial negative charge due to the presence of unshared electrons. The side of the water molecule with the two hydrogen atoms has a partial positive charge. The partial charges on the water molecule allow it to interact with charged solutes and facilitate dissolution. 


Choice d is incorrect. Although the water molecule does have one oxygen atom, its presence is not responsible for the ability of water to act as an effective solvent.

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