Question

use the chart above. which best describes the relationship between the material and the speed of sound as shown in this chart? the more tightly packed the molecules in the material, the faster the speed of sound. the more tightly packed the molecules in the material, the slower the speed of sound. the more opaque the material, the slower the speed of sound. the more transparent the material, the faster the speed of sound.

Explanation:

Sound travels fastest in solids (where molecules are tightly - packed) as the molecules are close together, allowing for quicker transfer of energy (vibrations). In liquids, molecules are less tightly - packed than in solids, so sound is slower. In gases, molecules are far apart, and sound is slowest. Transparency or opacity of a material is not directly related to the speed of sound. For example, a transparent diamond (a solid) has a very high speed of sound because of its tightly - packed molecular structure.

Answer:

The more tightly packed the molecules in the material, the faster the speed of sound.