Question

question 5
a water molecule bonds with other water molecules with weak, ______ bonds.
ionic
aquatic
oxygen
hydrogen

question 6
a water strider (insect) is able to walk on the top of a pond because of waters
nonpolar bonds
evaporative cooling
surface tension
high density

Explanation:

Analyze intermolecular bonding in water

The first question asks about the weak bonds that form between different water molecules. Water molecules are polar, with a partial negative charge on oxygen and a partial positive charge on hydrogen. This polarity allows the partially positive hydrogen of one water molecule to attract the partially negative oxygen of an adjacent water molecule, forming a weak intermolecular attraction known as a hydrogen bond.

Analyze surface properties of water

The second question asks why a water strider can walk on top of a pond. This phenomenon is due to the cohesive forces between water molecules at the liquid-gas interface, which create a "film" on the surface. This property is called surface tension, allowing the surface of the water to resist external forces.

Answer:

Question 5

• ionic
• aquatic
• oxygen
• hydrogen (Correct answer)

Question 6

• nonpolar bonds
• evaporative cooling</mcq-correct>
• surface tension (Correct answer)

<mcq-option>high density