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.
B). Visible Light. Hope that helps
Answer:
Phosphorus
Sulphur
And chlorine are non metals when bonded covalently gain electronic configuration of argon
Like PCl3
SO2 and HCl
Explanation:
It is 10 kg, because the gravity of the Earth is 10N/kg. Mark Brainliest.
1.
2.Unconformity
3. Folding
4. Law of superposition