The answer is c. because you have to increase concentration of h2
Answer:
The answer I believe is B. Erosion
Explanation:
Just sounds better than all the other choices.
1) Balanced chemical reaction: Cl₂ + 2NaI → 2NaCl + I₂.
Chlorine and iodine are diatomic molecules.
2) Balanced chemical reaction: 2NH₃ → N₂ + 3H₂.
Nitrogen and hydrogen are diatomic molecules.
3) Balanced chemical reaction: 4Na + O₂ → 2Na₂O.
Sodium in compounds has oxidation number +1 and oxygen -2.
Answer:
a. 4 sig figs
b. 3 sig figs
c. 2 sig figs
