Question

introduction to chemistry unit test how does hydrogen bonding explain the properties of water when it freezes? (1 point) it creates tight spaces between water molecules. it makes ice float on top of water instead of sink. it allows the water to evaporate as it freezes. it causes ice to become more dense than water.

Explanation:

To determine the correct answer, we analyze the effect of hydrogen bonding on water when it freezes:

• Option 1: When water freezes, hydrogen bonds form a hexagonal lattice structure, creating more space between molecules. This makes ice less dense than liquid water, so ice floats. This matches the property explained by hydrogen bonding.
• Option 2: Hydrogen bonding in ice does not create tight spaces; instead, it creates an open lattice with more space. So this is incorrect.
• Option 3: Freezing is the opposite of evaporation, and hydrogen bonding during freezing doesn't allow water to evaporate as it freezes. This is incorrect.
• Option 4: Ice is less dense than water, not more dense. So this is incorrect.

Answer:

It makes ice float on top of water instead of sink.