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Chemistry 9 Online
OpenStudy (anonymous):

how do you find formulas for compounds?

OpenStudy (anonymous):

Example, If you were trying to find the formula for sodium carbonate Sodium = Na+, Carbonate (which is a polyatomic ion) = CO3^2- Since the sum of the oxidation numbers must be zero, we need two sodium atoms for one carbonate. Na2CO3 ___________________________________ use the charges of the ions. cancel out the charges by finding a common multiple of the + and - charges

OpenStudy (kc_kennylau):

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