Water properties?

Question

the anomalous physical properties of water can be attributed to..
1. open network structure of ice.
2. strong hydrogen bonding intermolecular foces
3. its large dipole moment
4. its relatively low molecular weight
5. its relatively high density.

im thinking its 2? right?

Answer 1

Answer:
(2) strong hydrogen bonding intermolecular forces.

Since the hydrogen and oxygen atoms in the molecule carry opposite (though partial) charges, nearby water molecules are attracted to each other like tiny little magnets. The electrostatic attraction between the ð+ hydrogen and the ð- oxygen in adjacent molecules is called hydrogen bonding.

Answer 2

You are right

The ability of water to form strong hydrogen bonds gives it very strong intermolecular attraction, leading to the other listed properties (except 3, which is kind of redundant--a hydrogen bonding interaction is just a specific, especially strong, type of dipole interaction).

Answer 3

it isn't (1). you said "water". that includes solid, liquid and vapor. not just ice.

it isn't (4) there are many substances that have similar or lower mw. methane for example

it isn't (5). it's density isn't all that high

leaving (2) and (3).

hydrogen bonding explains why ice is less dense than water (ie. it explains choice (1) ).

the large dipole moment explains waters high boiling point, and it's ability to dissolve salts, etc.

Most importantly, the large dipole moment is the reason hydrogen bonding occurs in the first place!

My vote is for number (3)

and it's the right answer!

Answer 4

One major anomalous (unusual) property of water is its high boiling point compared to compounds of similar molecular weight and size. This high boiling point is caused by choices 2 & 3.

Another anomalous (unusual) property of water is that it’s solid phase floats upon its liquid phase. This is caused by choice #1.

#4 & 5 are relative, but relative to what? These are bad choices because they are incomplete.

If your teacher is looking for a single answer to this question, you should start looking for a better teacher.

Answer 5

Water has strong hydrogen bonding

Answer 6

Electronegative Polarity Water has a partial adverse fee (?-) close to the oxygen atom because of the unshared pairs of electrons, and partial useful prices (?+) close to the hydrogen atoms. In water, this happens because the oxygen atom is extra electronegative than the hydrogen atoms — it truly is, it has a more suitable "pulling skill" on the molecule's electrons, drawing them nearer (alongside with their adverse fee) and making the area around the oxygen atom extra adverse than the area round both between the hydrogen atoms.

Answer 7

perhaps