Front

Ice floats on water because the ice is less dense than liquid water.

Back

True

Front

Our body and our cells contain an average of: 10% of water, 50% of water, 70% of water, 100% of water

Back

70% of water

Front

Atoms of a polar molecule share their atoms ___________.

Back

Unequally

Front

Why is it difficult to wash oil from your hands with plain water?

Back

Water is polar, and oil is nonpolar, so they will not combine.

Front

The boiling point of polar molecules is __________ the boiling point of nonpolar molecules.

Back

higher than

Front

A compound that is being dissolved is called a

Back

Solute

Front

Solvent

Back

substance into which the solute dissolves

Front

Why can a water strider skate along the top of a pond?

Back

hydrogen bonds result in water cohesion (surface tension)

Front

Why can water have no net charge but have slight charges in different parts of the molecule?

Back

The oxygen end is slightly negative and the hydrogen end is slightly positive

Front

Attractions between water molecules are called

Back

Hydrogen bonds