Question

one of the reactions can be conducted as two?? which one and what are the two reactions??
types of reactions: single replacement, double replacement, synthesis, decomposition, combustion
reactions:
1. Iron (IIII) and copper (II) sulfate solution
2.Lead (II) nitrate and potassium iodide solutions
3. Magnesium metal ribbon and hydrochloric acid solution
4. Electrolysis of water
5. Burning magnesium

Answer 1

i must say im confused about this question, probably cause of difference in language

Answer 2

burning magnesium, i guess, it can be a synthesis and combustion reaction.

Answer 3

thank you!!