what is kind of reaction is 2C(s)+mno2(s)Mn(s)+2co(g)

oxidation reduction ?

single replacement?

The given chemical equation represents a redox reaction, specifically a combustion reaction. In this reaction, solid carbon (C) combines with solid manganese(IV) oxide (MnO2) to produce solid manganese (Mn) and gaseous carbon monoxide (CO).

To identify the type of reaction, you can follow these steps:

1. Determine the oxidation state of each element in the reaction.
- In this case, carbon (C) has an oxidation state of 0 in its standard state or when it is in its elemental form (C(s)).
- Manganese(IV) oxide (MnO2) contains Mn with an oxidation state of +4, and oxygen (O) has an oxidation state of -2.
- Manganese (Mn) in its standard state is uncharged, so it has an oxidation state of 0 in this reaction.
- Carbon monoxide (CO) has carbon (C) with an oxidation state of +2 and oxygen (O) with an oxidation state of -2.

2. Compare the oxidation states of each element before and after the reaction:
- The carbon in C(s) has an oxidation state of 0, and in CO, it has an oxidation state of +2. Thus, it has undergone oxidation.
- The manganese in MnO2 has an oxidation state of +4, and in Mn it has an oxidation state of 0. Thus, it has undergone reduction.

3. Based on the changes in oxidation states, we can determine that this reaction is a redox (reduction-oxidation) reaction.

Furthermore, since carbon is burning and combining with oxygen, this reaction can be specifically classified as a combustion reaction, as it involves the rapid oxidation of carbon in the presence of an oxidizing agent, which is manganese(IV) oxide (MnO2) in this case.