MCQOPTIONS
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| 1. |
Find the hidden term. |
| A. | <sub>2</sub>+ __________ |
| B. | H<sub>2</sub>O and CO<sub>2</sub> |
| C. | H<sub>2</sub>CO<sub>3</sub> |
| D. | H<sub>2</sub>SO<sub>4</sub> |
| Answer» B. H<sub>2</sub>O and CO<sub>2</sub> | |