Question

a scientist has two beakers. the list below describes the contents of each beaker.

• beaker 1 contains a solid that is very cold. the solid is composed of molecules that all consist of one carbon atom chemically bonded to two oxygen atoms.
• beaker 2 contains two room - temperature liquids. the liquids have separated into layers. the liquid on top appears green, and the bottom liquid is colorless.

how should the contents of each beaker be classified?
a beaker 1 contains an element, and beaker 2 contains a compo
b beaker 1 contains a compound, and beaker 2 contains a mixtur
c beaker 1 contains a compound, and beaker 2 contains an elem
d beaker 1 contains an element, and beaker 2 contains a mixtur

Explanation:

• Beaker 1: A compound is a substance formed when two or more elements are chemically bonded together. The solid in Beaker 1 has molecules with one carbon atom and two oxygen atoms (\(CO_2\)), so it is a compound.
• Beaker 2: A mixture is a combination of two or more substances that are not chemically bonded. The two - layer liquid in Beaker 2 (with different physical properties like color) is a mixture.

Answer:

B. Beaker 1 contains a compound, and Beaker 2 contains a mixture.