Exploring the Properties of Water

What are water molecules composed of?

• Two hydrogen atoms and two oxygen atoms

• One hydrogen atom and one oxygen atom

• Two hydrogen atoms and one oxygen atom

• Two oxygen atoms and one hydrogen atom

Which element in a water molecule has a higher electronegativity?

• Hydrogen

• Oxygen

• Both have the same electronegativity

• Neither has electronegativity

What happens to the charges of hydrogen and oxygen in a water molecule due to electronegativity?

• Both become slightly positive

• Both become slightly negative

• Oxygen becomes slightly negative and hydrogen becomes slightly positive

• Oxygen becomes slightly positive and hydrogen becomes slightly negative

What type of bonds form between water molecules?

• Metallic bonds

• Covalent bonds

• Ionic bonds

• Hydrogen bonds

What is the term for attractions that occur between separate molecules?

• Intramolecular attractions

• Intermolecular attractions

• Covalent attractions

• Ionic attractions

What property of water allows it to support weight at the surface?

• Capillary action

• Cohesion

• Adhesion

• Surface tension

How does cohesion affect the boiling point of water?

• It makes the boiling point unpredictable

• It raises the boiling point

• It has no effect on the boiling point

• It lowers the boiling point

What is the process called when water sticks to other substances?

• Surface tension

• Adhesion

• Evaporation

• Cohesion

What is an example of adhesion in biology?

• Water forming droplets

• Water freezing

• Water boiling

• Water sticking to the bottom of a leaf

What is the term for the process of water climbing up through a plant's stem?

• Cohesion

• Evaporation

• Capillary action

• Surface tension