Potassium permagnate +ferrous sulphate+ sulphuric acid molecular formula

KMnO4 + 2FeSO4 + H2SO4 ==> MnSO4 + H2O + Fe2(SO4)3 + K2SO4

2Fe atoms change from +4 on left to +6 on right.
Mn changes from +7 on the left to +2 on the right. Can you finish? The usual problem students have is they don't start with that preliminary 2 for FeSO4.

To determine the molecular formula of potassium permanganate (KMnO4), ferrous sulfate (FeSO4), and sulfuric acid (H2SO4), you need to know the chemical symbols of the elements involved and the ratio in which they combine.

The molecular formula of potassium permanganate is KMnO4. This formula tells us that the compound consists of one atom of potassium (K), one atom of manganese (Mn), and four atoms of oxygen (O).

The molecular formula of ferrous sulfate is FeSO4. This formula indicates that the compound consists of one atom of iron (Fe), one atom of sulfur (S), and four atoms of oxygen (O).

The molecular formula of sulfuric acid is H2SO4. This formula reveals that the compound consists of two atoms of hydrogen (H), one atom of sulfur (S), and four atoms of oxygen (O).

Therefore, the molecular formulas are as follows:

Potassium permanganate: KMnO4
Ferrous sulfate: FeSO4
Sulfuric acid: H2SO4