![]() ![]() To learn the basic parts we will be using all semester: ![]() To a beginner the compound seems more complicated than it has to beīecause he does not recognize the parts. But to a beginner there appear to beĤ parts. Every chemist knows that it has two parts, a cation and an anion.Įvery chemist recognizes the two parts. Great simplification and you will be hopelessly confused the rest of the term.Ĭonsider the compound NH 4NO 3. Will study, the carbonate ion is never broken up, so it makes sense to treat itĪs a single entity rather than the sum of its parts.īut if you don't recognize carbonate ion, you won't be able to take advantage of this But it considerably simplifies things if we view theĬarbonate ion as a whole rather than as parts. What about the subscript inĬO 3 2-? Well, it means there are 3 oxygen atoms for eachĬarbon atom in the ion. Subscript in the formula: Na 2CO 3, 2 Na +įor each CO 3 2. To balance the charge of a carbonate ion. Has a charge of +1 and carbonate ion has a charge of -2, it takes 2 sodium ions The total charge must be zero for any compound. The superscript in each ion represents the charge, or oxidation state Sodium chloride NaCl Na + Cl - sodium carbonate Na 2CO 3 Na + CO 3 2- calcium chloride CaCl 2 Ca 2+ Cl - calcium carbonate CaCO 3 Ca 2+ CO 3 2. The cation comes first, both in the name and in the formula for Ionic compounds consist of two parts: a positive ion (cation) and a negative Please visit the new website at Metathesis Reactions Introduction ![]() From Caveman to Chemist: Metathesis Reactions This is the old Caveman Chemistry website. ![]()
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