Use the solubility table to determine the physical state that would belong in the parentheses for each compound when formed in water.  Write “aq” for aqueous or “s” for solid, as appropriate.   [a1]  Na3PO4 (      ) [a2]  Fe(OH)2 (      ) [a3]  Cr(NO3)2 (      ) [a4]  Mg(C2H3O2)2 (      )

Write a balanced chemical equation for the combustion reaction of C9H20 and elemental oxygen.  Ignore physical states.  

Write the coefficients (in order) needed to balance the equation.  Separate the coefficients with a comma (e.g. 1, 2, 3).  Physical states do not need to be included.  __ B  +  __ P4 

Write the coefficients (in order) needed to balance the equation.  Separate the coefficients with a comma (e.g. 1, 2, 3).  Physical states do not need to be included.    __ Fe3O4  

How many total hydroxides are on the reactant side of the balanced equation?  2 FeCl5  +  5 Zn(OH)2  

Use the following balanced chemical equation to answer the questions that follow.  Number your answers and answer the question in the order given. Al₂(SO₄)₃ + 3 Mg(OH)₂ → 2 Al(OH)₃ + 3 MgSO₄ What do the coefficients represent in a balanced chemical equation? Write the formula of the product(s).  

Write the formula (and charge) for each ion in the order they are given.  Be sure to number your answers.  Sulfide Ammonium  Gallium ion

What does it mean when a compound is considered “soluble in water”?  Briefly explain.  

Write the formula of an insoluble ionic compound that contains bromide.  

Choose all of the formulas that contain covalent bonding.