Sound waves need a medium to travel though. A) True
B) False

Sound travels faster in water than it does in air.
A) True
B) False

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

Adrop of acetone (nail polish remover) has a mass of 35 mg and a density of 0.788 g/cm3. what is its volume in cubic centimeters?

How many miles of water are produced if 5.43 mol pbo2 are consumed