Answer:
In our case, the equation 2KI + F2 → 2 KI + I2 is a single-replacement (also called single- displacement) reaction.
Step-by-step explanation:
Step 1: The balanced equation:
2KI + F2 → 2 KI + I2
Step 2: What kind of reaction
Since we start with 2 reactants and end with 2 products, we can say it won't be a synthesis or decomposition reaction.
In our case, It looks like it's a replacement reaction.
- A single-replacement reaction is a reaction in which one element replaces a similar element in a compound. The general form of a single-replacement reaction is: A+BC→AC+B
where element A is a metal and replaces element B , also a metal, in the compound.
When the element that is doing the replacing is a nonmetal, it must replace another nonmetal in a compound.
- A double-replacement reaction is a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds. The general form of a double-replacement reaction is: AB+CD→AD+BC
In our case, the equation 2KI + F2 → 2 KI + I2 is a single-replacement (also called single- displacement) reaction.