What is the percent composition for Fe(NO3)3

Which type of substance ionizes partially and gives off hydrogen ions when dissolved in water? a. strong acid b. strong base c. weak acid d. weak base

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution