The active agent in many hair bleaches is hydrogen peroxide. The amount of H2O2 in 14.8 g of hair bleach was determined by titration with a standard potassium permanganate solution: 2MnO4-(aq) 5H2O2(aq) 6H (aq) -> 5O2(g) Mn2 (aq) 8H2O(l) If 43.2 mL of 0.105 M KMnO4 was needed to reach the endpoint, what the mass % of H2O2 in the sample of hair bleach

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.

it is the most commonly accepted one