Chem+9-4


 * 88.

Write chemical equations for the following single replacement reactions that might occur in water. If no reaction occurs, write NR in place of the products.

a. nickel + magnesium chloride Ni+ Mg2+Cl1-2 à NR b. calcium + copper (II) bromide Ca + Cu2+Br1-2 à CaBr2+ Cu

c. potassium + aluminum nitrate 3K + Al3+(NO31-)3 à 3 KNO31- + Al

d. magnesium + silver nitrate Mg + 2 Ag1+NO31- à Mg(NO31-)2 + 2Ag


 * 93.

What is a net ionic equation? How does it differ from a complete ionic equation? A net ionic equation is an equation that includes only the particles that participate in the reaction. These equations are different from complete ionic equations because they do not have any spectator ions in the equation.
 * 94.

Define //spectator ion.//

A spectator ion is an ion that does not participate in an ionic reaction and ionic equation. They are removed from net ionic equations.


 * 95.

Write the net ionic equation for a reaction that occurs in an aqueous solution and produces water.

H+(aq) + OH-(aq) à HOH(l)