WATER BASICS

surface tension

cohesion of water molecules at the surface of a body of water

The oxygen side of a water molecule is _____.

slightly negative

adhesion

water's attraction to other substances

cohesion

water's attraction to other water molecules

1. adhesion water's attraction to other substances 2. cohesion water's attraction to other water molecules 3. compound molecular condition in which one end has a slightly positive charge and the other a slightly negative charge 4. polarity two or more elements joined together to create a new substance 5. surface tension cohesion of water molecules at the surface of a body of water 6. solvent substance in which another substance is dissolved

1. attraction to other substances 2. attraction to other water molecules 4. molecular condition in which one end has a slightly positive charge and the other a slightly negative charge 3. two or more elements joined together to create a new substance 5. cohesion of water molecules at the surface of a body of water 6. substance in which another substance is dissolved

Which of the following statements is true?

Water is easily polluted because it can dissolve harmful chemicals.

Cohesion describes water's _____.

attraction to itself

Water _____.

boils at 100°C

Hot water _____.

is beneficial to living organisms in aquatic ecosystems

Surface tension _____.

is caused by cohesion between water molecules on the surface

solvent

substance in which another substance is dissolved

compound

two or more elements joined together to create a new substance

Ice floats in water because it _____.

is less dense than water

The "hardness" of water describes _____.

its level of dissolved minerals

polarity

molecular condition in which one end has a slightly positive charge and the other a slightly negative charge