Question

rusting of an iron nail is a - - - - - - - - - - - - - - reaction.
A. combination
B. displacement
C. decomposition
D. double displacement

Answer 1

⭐⭐hay user here is ur answer⭐⭐
⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️⬇️
Option A.is correct combination reaction because the to substance combine together to form a new substance for example
1. 2Ca + O2 → 2CaO
2. N2 + 3H2 → 2NH3 
✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔

I hope it will helpful for u and please mark mee brainlist or follow me






@badboy❤

Answer 2

Rusting of an iron nail is a combination reaction.

i.e.a] combination