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1 December, 05:14

Which of the following equations has correct formulas and also is a balanced equation?

a. CaCO3 - > CaO + CO3

b. 3KCl + HNO3 - > 3HCl + KNO3

c. 2Be + O2 - > 2BeO

d. Mg + O2 - > MgO2

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  1. 1 December, 05:40
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    The equations that has the correct formulas and also is a balanced equation are:

    2Be + O2 - > 2BeO

    Mg + O2 - > MgO2

    The answer are letters C and D. The rest of teh choices are not balanced chemical equations.
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