Question

the four diagrams below model the results of mixing atoms of different substances. each atom is represented by a different symbol. which diagram correctly models a chemical change?

Explanation:

Step1: Recall chemical - change characteristics

In a chemical change, new substances are formed with different chemical properties. This means atoms are rearranged to form new chemical bonds.

Step2: Analyze Option A

In Option A, the atoms are just mixed together without forming new combinations. It is a physical mixture.

Step3: Analyze Option B

In Option B, the black and white atoms combine to form new molecules. New chemical bonds are formed, indicating a chemical change.

Step4: Analyze Option C

In Option C, the atoms are just inter - mixed without forming new substances. It is a physical mixture.

Step5: Analyze Option D

In Option D, the atoms are just mixed together without any new bond formation. It is a physical mixture.

Answer:

B