Question

Select the combination reactions between: (i) elements, (ii) compounds and (iii) an element and a compound, for the given reaction.

$$\begin{gathered} 2\mathrm{CO}\left(\mathrm{g}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right)\to 2{\mathrm{CO}}_2\left(\mathrm{g}\right) \\ (\mathrm{Carbon}(\mathrm{Oxygen})(\mathrm{Carbon}\mathrm{dioxide}) \\ \mathrm{monoxide}) \end{gathered}$$

Answer 1

Combination reactions:

The reactions involving the combination of elements or compounds to obtain the products are called combination reactions. The combination of elements or compounds will give rise to more than one product.

Elements:

The elements are the group of atoms of a particular substance. These are pure in their elemental form.

Compounds:

The compounds are molecules composed of different atoms or elements. They can be broken down into simpler ones.

Given equation:
The given reaction is a combination reaction of Carbon monoxide $\left(\mathrm{CO}\right)$ and Oxygen $\left({\mathrm{O}}_2\right)$, to give Carbon dioxide $\left({\mathrm{CO}}_2\right)$.

$$\begin{gathered} 2\mathrm{CO}\left(\mathrm{g}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right)\to 2{\mathrm{CO}}_2\left(\mathrm{g}\right) \\ (\mathrm{Carbon}(\mathrm{Oxygen})(\mathrm{Carbon}\mathrm{dioxide}) \\ \mathrm{monoxide}) \end{gathered}$$

Therefore the given reaction is a combination of (iii) an element and a compound.