A0.495 g sample of iron containing salt required 20.22 ml of 0.0194 m permanganate solution to reach the endpointof a titration. what is the percent of iron (55.845 g/mol) in the salt

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Match each statement with the state of matter it describes

Which substance—wood or silver—is the better thermal conductor? a thermal conductor is a material that requires very little heat energy to change its temperature. explain your answer.