33.6 moles are needed to completely react with 84.0 moles of O2
Answer:
2 sig figs.
Explanation:
Sig Fig Rules:
Any non-zero digit is a significant figure.
Any zeros between 2 non-zero digits are significant figures.
Trailing zeros after the decimal are significant figures.
The correct answer is D. 88 g
Good Luck!! Hope this helps!! :)
