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For an experimental test of these ideas, you can see how a charged object interacts with the dipolar molecules of water

A) Electrostatic repulsion
B) Magnetic attraction
C) Inductive charging
D) Ionization of water

User Sam Bull
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1 Answer

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Final answer:

The interaction between a charged object and the dipolar molecules of water is called ion-dipole attraction, which causes polarized water molecules and ions dissolved in water to be attracted to the charged object.

Step-by-step explanation:

When investigating how a charged object interacts with the dipolar molecules of water, it's essential to understand the nature of ion-dipole attractions. Such interactions occur due to the electrostatic attraction between an ion, which is charged, and the partial charges found in a water molecule, which is polar. The question you have asked, referring to Figure 13.3.2 or similar figures in different sections, involves understanding why water molecules are affected by charged objects.

Considering the GRASP CHECK options provided, the correct answer is (c), which states that the charged object attracts the polarized water molecules and ions that are dissolved in the water. This is because water molecules have a dipole moment, where one end is slightly positive and the other is slightly negative. The end with the opposite charge to that of the nearby ion will orient itself towards that ion, creating an ion-dipole interaction. This concept also explains why substances like sodium chloride, or table salt, dissolve well in water, forming dipole-ion bonds. In contrast, nonpolar substances like oils do not mix with water due to a lack of these electrostatic attractions.

User Axiixc
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