Drag each statement to the correct location.Classify the chemical equations as being balanced or not balanced.CaO + 3C → CaC2 + CONa + H2O → 2NaOH + H24Fe + O2 → 2Fe2O32Mg + O2 → 2MgO
Question
Drag each statement to the correct location.Classify the chemical equations as being balanced or not balanced.CaO + 3C → CaC2 + CONa + H2O → 2NaOH + H24Fe + O2 → 2Fe2O32Mg + O2 → 2MgO
Solution
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CaO + 3C → CaC2 + CO: This equation is balanced. Each side of the equation has 1 calcium atom, 3 carbon atoms, and 1 oxygen atom.
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Na + H2O → 2NaOH + H2: This equation is not balanced. The left side of the equation has 1 sodium atom, 2 hydrogen atoms, and 1 oxygen atom. The right side of the equation has 2 sodium atoms, 4 hydrogen atoms, and 2 oxygen atoms.
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4Fe + O2 → 2Fe2O3: This equation is not balanced. The left side of the equation has 4 iron atoms and 2 oxygen atoms. The right side of the equation has 4 iron atoms and 6 oxygen atoms.
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2Mg + O2 → 2MgO: This equation is balanced. Each side of the equation has 2 magnesium atoms and 2 oxygen atoms.
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