Number 2. this is a chemical change cuz numbers 1, 3 and 4 are physical. So if you add the equation of 2 it has two molecules.
Answer:
Sample Response: Viscosity refers to a liquid’s resistance to flow. Liquids with a higher viscosity flow more slowly. In liquids that are more viscous, there is a stronger attraction between atoms.
Explanation:
it's the sample response so it's correct lol, I hope it helps.
Compounds that primarily contain carbon are known as organic compounds.
Answer:
if it gains or loses neutrons
We need to know the statements lol