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Answer the following questions:
   
Answer variants:
\(Fe\) + \(2H^+\) → \(Fe^2{^+}\) + \(H_2\)
Combination reaction: \(NH_3\) + \(HCl\) → \(NH_4Cl\)
   
1. What type of reactions take place when.
Ammonia and hydrogen chloride are mixed?
   
 
2. Suppose any of the following occurs spontaneously; write the balanced net ionic equation. If not, write no reaction. \(Fe\) + \(H^+\) → \(Fe^2{^+}\) + \(H_2\)