Question

Use mendeleev periodic table to predict the formula of the oxides k, c,al,si,ba

Answer 1

Answer:

As we know the oxygen having - 2 charge.

1. K =+1, O= - 2 =K2O

2. C =+4, O= - 2 = C2O4=CO2

3. Al=+3 O= - 2 = AL2O3

4. Si=+4, O = - 2 = SiO2

5. Ba=+2 O = - 2 = BaO

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