Is HMnO4 ionic covalent or a acid?

What is the molecular formula for a compound that is 46.16% carbon, 5.16% hydrogen, and 48.68% fluorine? the molar mass of the compound is 156.12 g/mol

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

Which of the following substances is the most soluble in water? a. sodium chloride b. methane c. bromine d. carbon