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.
Answer:
2Mg^+ +O2 right arrow 2MgO
Explanation:
Iron filings can be attracted by the magnet whereas salt can not. So the mixture can be separated by a magnet
The answer is true the answer has to be 20 words long so true true true true true true
Answer is 3Mg + N2 —--> Mg3 N2
