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>


Discussion

No Comment Found