Question

Drag the tiles to the correct boxes. Not all tiles will be used. The oxidation number of oxygen is -2, and that of chlorine is -1. Use this information to match the names of the compounds to their chemical formulas.

manganese(II) chloride
manganese(IV) chloride
manganese(II) oxide
manganese(IV) oxide

Answer 1

That oxidation number of chlorine is -1 while that of oxygen is -2

Step-by-step explanation:

When it comes to manganese chloride to stabilize the chlorine Ion. Two manganese ions shall be required. Hence the formula for the compound becomes
`M_nCl_2` while the formula for manganese (iv) chloride will be
`M_nCl_4` similarly.

When oxygen and magnesium oxide is considered the Two ions of Manganese will satisfy to ions of oxygen. Which cancels and becomes
`M_nO` while for manganese (iv) oxide the formula becomes
`M_nO_2`.

Answer 2

1) Manganese(II)chloride :
`MnCl_(2)`

2) Manganese(IV)chloride :
`MnCl_(4)`

3) Manganese(II)oxide :
`MnO`

4) Manganese(IV)oxide :
`MnO_(2)`

Step-by-step explanation:

It is given that:

Oxidation number of chlorine (Cl) = -1

Oxidation number of Oxygen (O) = -2

1) Manganese(II)chloride :

The oxidation number of manganese (Mn) is indicated by the roman numeral II = +2

Oxidation number of chlorine (Cl) = -1

Since the molecule is neutral the sum of charges on the cation (Mn) and anion (Cl) should be zero. This is possible only if one mole Mn combines with 2 moles Cl. Therefore, the chemical formula is
`MnCl_(2)`

2) Manganese(IV)chloride :

The oxidation number of manganese (Mn) is indicated by the roman numeral IV = +4

Oxidation number of chlorine (Cl) = -1

Since the molecule is neutral the sum of charges on the cation (Mn) and anion (Cl) should be zero. This is possible only if one mole Mn combines with 4 moles Cl. Therefore, the chemical formula is
`MnCl_(4)`

3) Manganese(II)oxide :

The oxidation number of manganese (Mn) is indicated by the roman numeral II = +2

Oxidation number of Oxygen (O) = -2

Since the molecule is neutral the sum of charges on the cation (Mn) and anion (O) should be zero. This is possible only if one mole Mn combines with 1 mole O. Therefore, the chemical formula is
`MnO`

4) Manganese(IV)oxide :

The oxidation number of manganese (Mn) is indicated by the roman numeral IV = +4

Oxidation number of Oxygen (O) = -2

Since the molecule is neutral the sum of charges on the cation (Mn) and anion (O) should be zero. This is possible only if one mole Mn combines with 2 moles O. Therefore, the chemical formula is
`MnO_(2)`