Atoms & Properties of Water Quiz

What type of bond holds the hydrogen and oxygen atoms together in a water molecule?

• Metallic bond

• Ionic bond

• Covalent bond

• Hydrogen bond

Electrons have a ____ charge?

• Positive

• Negative

• Neutral

• Both Positive and Negative

What is the significance of surface tension in water and how is it formed?

• Surface tension in water is significant because it allows small insects to walk on water and helps water to form droplets.

• Surface tension in water is significant because it allows water to freeze at a lower temperature and helps water to form ice.

• Surface tension in water is significant because it allows water to conduct electricity and helps water to form steam.

• Surface tension in water is significant because it allows fish to breathe underwater and helps water to form waves.

Describe the difference between cohesion and adhesion in the context of water.

• Cohesion is the attraction between water and oil, while adhesion is the attraction between water molecules.

• Cohesion is the attraction between molecules of different substances, while adhesion is the attraction between molecules of the same substance.

• Cohesion is the tendency of water to repel other substances, while adhesion is the tendency of water to attract other substances.

• Cohesion is the attraction between molecules of the same substance, while adhesion is the attraction between molecules of different substances.

How does cohesion contribute to the phenomenon of water droplets forming on a surface?

• Cohesion causes water droplets to form on a surface.

• Cohesion prevents water droplets from forming on a surface.

• Cohesion only affects the size of water droplets on a surface.

• Cohesion has no effect on the formation of water droplets on a surface.

Explain the process of capillary action in water and provide an example of where it can be observed in nature.

• Capillary action is the movement of water from the leaves to the roots of a plant

• When water is absorbed by the roots of plants and moves up through the stem to the leaves.

• When water is absorbed by the roots of plants and moves down to the roots

• Capillary action occurs when water moves sideways through the soil

The atomic number of an atom is the same as the number of

• electrons

• protons

• atomic weight

• electron shells

What is the name of the center of the atom that contains the protons and neutrons?

• nucleus

• electron shell

• covalent

• center mass

How does the cohesive nature of water molecules contribute to its ability to support small objects on its surface?

• Boiling point

• Density

• Surface tension

• Adhesion

Adhesion assists in which of the following?

• Water moving up against gravity - capillary action

• Water sticking to itself

• Surface tension

• Adhesion is not important in everyday life and has no impact on water