Answer:
Sound waves are travelling vibrations of particles in media such as air, water or metal. So it stands to reason that they cannot travel through empty space, where there are no atoms or molecules to vibrate.
Explanation:
<span>the formation of a gas
</span>
Mass is always conserved in a physical change. Energy may be released or absorbed when a substance changes from one physical state to another. In a chemical change, a chemical reaction yields a completely new substance. A substance's particles are changed during a chemical reaction.
Answer: Water is made out of 3 atoms, 2 hydrogens and 1 oxygen.
Therefor, there answer will be A.
Hope this helps! :D
-TanqR
(Please give me brainliest)