Quiz Review (Properties of Water and Solubility)

How many oxygen and hydrogen atoms are there in a water molecule?

• 1 oxygen atom, 1 hydrogen atom

• 2 oxygen atoms, 2 hydrogen atoms

• 1 oxygen atom, 2 hydrogen atoms

• 2 oxygen atoms, 1 hydrogen atom

Are the electrons in a water molecule shared equally between the oxygen and hydrogen atoms?

• Yes, they are shared equally

• No, they are closer to the hydrogen atoms

• No, they are closer to the oxygen atom

• Electrons are not present in a water molecule

Which of the following is NOT one of the 7 properties of water listed?

• Capillary Action

• Surface Tension

• Elasticity

• Heat Capacity

What property of water allows it to dissolve many different substances?

• Density

• Heat of Vaporization

• Universal Solvent

• Polarity

What is a polar molecule?

• A molecule with only positive charged regions

• A molecule with only negative charged regions

• A molecule with positive and negative charged regions

• A molecule with no charged regions

Why does oxygen in a water molecule have a partial negative charge?

• Oxygen is less electronegative than hydrogen

• Oxygen shares electrons equally with hydrogen

• Oxygen is more electronegative than hydrogen

• Oxygen does not share electrons with hydrogen

What forms a hydrogen bond in water molecules?

• The oxygen and hydrogen within a single molecule

• The positive hydrogen and negative oxygen between different molecules

• The negative hydrogen and positive oxygen within a single molecule

• The oxygen atoms between different molecules

What is Capillary Action?

• The ability of water to freeze at a higher temperature

• The ability of water to flow upward against the force of gravity, due to cohesion and adhesion

• The process by which water evaporates from the surface of a liquid

• The process by which water molecules bond with solid surfaces

What does cohesion refer to in the context of water molecules?

• The repulsion between water molecules

• The attraction between water and sugar molecules

• The sticking together of two like molecules

• The process by which water molecules turn into ice

What causes water molecules to pull one another upward against gravity?

• Adhesion

• Temperature

• Cohesion

• Evaporation