What property makes water unusual?

Answer 1

Water has several unusual properties. 1. it expands when cooled to a solid. 2. it has an unusually large liquid range. 3. It can dissolve both ionic and covalent molecules.

This property is essential to life in that water then freezes from the top to the bottom. The ice is less than dense than the liquid water and floats on top making life possible under the surface of the ice.

If ice was more dense than liquid water the ice would sink to the bottom. The lake or ocean would fill up with ice and the organisms in the liquid water would freeze solid and die.

With a smaller liquid range, life would not be possible or would have to rely on a different solvent.

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Answer 2

Natalie Anton

Water's unusual property is its high specific heat capacity.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.