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2011-09-20 16:51:00   来源：网络整理    双击单词自动翻译

　　Ag+ + Br-AgBr

　　Example　　Hydrochloric acid and sodium hydroxide are mixed. Write the net ionic equation.　　Explanation　　This is a mixture of a strong acid and a strong base, so each ionizes completely.

　　H+ + Cl- + Na+ + OH-

　　The two possible compounds formed are sodium chloride, which is soluble, and water, which is molecular; thus water is the only product in our net ionic equation.

　　H+ + OH-H2O

　　Example　　Chlorine gas is bubbled into a solution of potassium iodide; write the net ionic equation.　　Explanation　　This one is a single replacement, so you need to consider the activity series. Since halogens are involved, you can determine their activity by using the periodic table: Cl is more active than I.

　　Cl2 + K+ + I-

　　Remember that halogen is diatomic and that all potassium compounds are soluble. The resulting compound is also soluble, so K+ is a spectator and is left out of the final equation.

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