Which prefix will we add the the beginning of oxide (oxygen)? octa penta trị mono

## Step 1<br />The problem is asking for the correct prefix to be added to the beginning of the word "oxide" to indicate the presence of one oxygen atom. In the field of chemistry, prefixes are used to indicate the number of atoms of a particular element in a compound. <br /><br />## Step 2<br />The prefixes "mono", "di", "tri", "tetra", "penta", "hexa", "hepta", "octa", "nona", and "deca" are used to indicate the number of atoms of a particular element in a compound. <br /><br />## Step 3<br />The prefix "mono" is used to indicate the presence of one atom of a particular element. Therefore, when we want to indicate the presence of one oxygen atom in a compound, we would use the prefix "mono".