As an Ice Cube Floating in a Glass of Water

question 47

Multiple Choice

As an ice cube floating in a glass of water melts, what happens to the water level?

• A)The water level rises to the point where the ice floats above the water.
• B)As the ice melts, the water level does not change-the melting ice "caves in" and exactly fills the open spaces.
• C)The melting ice "caves in" and fills the open spaces-therefore the water level is lower after the ice melts.

---

Definitions:

Equivalent Atoms

Equivalent atoms are atoms in a molecule that are indistinguishable from each other in their chemical environment, resulting in identical physical and chemical properties.

Lone Pairs

Pairs of valence electrons that are not shared with another atom and not involved in bonding in a molecule.

Acetylene

A hydrocarbon and the simplest alkyne, with the formula C2H2, used as a fuel and a chemical building block.

Ethyne

A colorless hydrocarbon gas with the formula C2H2, known for its use in welding as acetylene.