Question

question 10 (5 points)
which of the following is an unusual property of water?
a) its a polar molecule.
b) its charge is balanced evenly around the atom.
c) it doesnt exist in the gaseous state on earth.
d) its atoms are bound by ionic bonds.

Explanation:

• Option A: Water is a polar molecule (due to electronegativity difference between O and H), which is a key property, not unusual in the context of its unique behaviors compared to other molecules. But among the options, let's analyze others.
• Option B: Water's charge is not balanced evenly; it's a polar molecule with partial positive on H and partial negative on O, so this is incorrect.
• Option C: Water does exist as gas (water vapor) on Earth, so this is false.
• Option D: Water molecules have covalent bonds (O - H bonds) within the molecule, not ionic. However, re - evaluating Option A: Wait, actually, the "unusual" here might be misphrased, but among the options, the only correct statement about a property (even if "unusual" is a bit off - but relative to the wrong options) is A. Wait, no, let's correct:

Wait, no, let's re - examine. The question is about unusual property. Wait, maybe the question has a typo, but let's check each:

• A: Water is polar, which is a property that leads to its unique behaviors (like high specific heat, cohesion, etc.). Compared to non - polar molecules, being polar is a property that makes water unusual in many ways.
• B: Incorrect, as water is polar, charge is not evenly balanced.
• C: Incorrect, water vapor is gaseous water on Earth.
• D: Incorrect, water has covalent bonds.

So the correct answer is A.

Answer:

A) It's a polar molecule.