Problem: Give the charges of the cation in each of the following compounds CaO, Na2SO4, KClO4, Fe (NO3) 2, Cr (OH) 3.

FREE Expert Solution

a. CaO

O → group 6A → -2 charge

Ca → group 2A → +2 charge


b. Na2SO4

SO42- → polyatomic ion → -2 charge

Na → group 1A → +1 charge


c. KClO4

K → group 1A → +1 charge

ClO4- → polyatomic ion → -1 charge


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Problem Details

Give the charges of the cation in each of the following compounds CaO, Na2SO4, KClO4, Fe (NO3) 2, Cr (OH) 3.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Ionic and Covalent Compounds concept. If you need more Ionic and Covalent Compounds practice, you can also practice Ionic and Covalent Compounds practice problems.

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Based on our data, we think this problem is relevant for Professor Liwosz's class at UB.