Answer :
The formation of rust (equation above) is an example of both combustion and Synthesis
What is a synthesis reaction?
- A synthesis reaction is a classification of responses in which multiple reactants connect to form a single product.
- If we observe the equation, no replacement is accepted place hence, single and double replacements are wrong choices.
- In decomposition reaction there is only one reactance which gets disintegrate and form multiple product.
- Synthesis reactions are reactions that occur when two additional atoms or molecules interact to form a separate molecule or compound. Most of the time, when a synthesis reaction occurs, energy is discharged and the reaction is exothermic. However, an endothermic consequence is also feasible.
learn more about synthesis reaction, refert o:
brainly.com/question/24936069
#SPJ4