Answer : Chemical energy to thermal energy
Explanation : When the welding torch uses the acetylene fuel for producing flame it is using the chemical acetylene to generate energy in form of light, after the flame is produced the fuel is used for melting a metal which is utilizing the thermal energy. So the ultimate final product is generated from chemical to thermal and so the energy transformation is from chemical energy to thermal energy.
Explanation:
the best way to understand the age of the earth is to estimate the age of matirials in it
Answer:
It’s twice as much as 9+10
Explanation:
Explanation:
the physical and chemical properties of an element are periodic functions of their atomic number.