1.

Which of the given reactions are counted as balanced reactions?

A. H<sub>2</sub> + O<sub>2</sub> 2H<sub>2</sub>O
B. 4Al + 3O<sub>2</sub> 2Al<sub>2</sub>O<sub>3</sub>
C. Mg(OH)<sub>2</sub> + 2HNO<sub>3</sub> 2Mg(NO<sub>3</sub>)<sub>2</sub> + 2H<sub>2</sub>O
D. N<sub>2</sub> + 3H<sub>2</sub> NH<sub>3</sub>
Answer» C. Mg(OH)<sub>2</sub> + 2HNO<sub>3</sub> 2Mg(NO<sub>3</sub>)<sub>2</sub> + 2H<sub>2</sub>O


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