Write the formula for iron (II) bromide and iron (III) sulfate. A sample of an iron-containing compound is 22.0% iron, 50.2% oxygen, and 27.8% chlorine by mass. What is the empirical formula of this compound? Hematite is an iron oxide that contains 69.9 mass % iron. Determine the empirical formula for this iron oxide.

The correct formula for iron II bromide is FeBr 2.. The Roman numeral II indicates the iron ion has a +2 charge. The bromide ion comes from the bromine.

If a precipitate of the following aqueous solutions will form, write its empirical formula: 1. sodium hydroxide and copper (II) sulfate 2. iron (III) bromide and potassium sulfide 3. potassium bromide and lead (II) nitrate

Write the net ionic equation for this reaction occurring in water: Calcium sulfide and iron (II) bromide are mixed to form iron (II) sulfide and calcium bromide. 1. C a 2 + + 2 B r C a B r 2 2. S 2 + F e 2 + F e S 3. S 2 + F e B r 2 F e

Question: Chapter 4 Aqueous Iron (II), bromide reacts with aqueous Lithium Carbonate to produce carbonate solid and aqueous Lithium bromide. a) Write the complete equation for the reaction b) Balance the equation for the reaction Vrit e the complete ionic equation for the reaction complete net ionic equation for the reaction

Part A Enter an equation for the precipitation reaction that occurs (if any) when solutions of potassium hydroxide and iron(II) bromide are mixed. Express your answer as a chemical equation. Identify all of the phases in your answer. Enter noreaction If no precipitate is formed.

If a precipitate of the following aqueous solutions will form, write its empirical formula: 1. sodium hydroxide and copper (II) sulfate 2. iron (III) bromide and potassium sulfide 3. potassium bromide and lead (II) nitrate; Does a precipitate form when aqueous solutions of potassium sulfide and iron(II) sulfate are mixed?

A chemist prepares a solution of iron (II) bromide (FeBr 2) by measuring out 7. 72 mu mol of iron (II) bromide into a 300. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mu mol/L of the chemist's iron (II) bromide solution. Be sure your answer has the correct number of significant digits.

Question: Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are mixed. If a precipitate will form, enter its empirical formula in the last column. Does a precipitate form when A and B are mixed? solution a: ammonium bromide solution b: sodium hydroxide yes no If yes, what is

Question: Does a reaction occur when aqueous solutions of iron(II) bromide and sodium hydroxide are combined? yes no If a reaction does occur, write the net ionic equation to determine the solubility of compounds Use the solubility rules provided in the OWL Preparation Page Use the pull-down boxes to specify states such as If a box is not needed leave it blank.