Molecules are packed closer together in the ground than they are in the air. will sound travel faster or slower in the ground than in air? explain

It will travel faster in air since there are less molecules that are tightly packed to block the sound as in ground is a solid meaning all the molecules are heavily packed together not letting sound go through easily

Slower because of the molecules being packed closer together therefore sound traveling slower.

The molar mass of a substance is defined as the mass of 1 mol of that substance, expressed in grams per mole, and is equal to the mass of 6.022 × 10 23 atoms, molecules, or formula units of that substance.