*100 POINTS Metric-metric conversions- dimensional analysis
Slove each of the following using the GUESS method. You must use dimensional analysis. You CANNOT move the decimal. (I just need the chart parts)
2. 4.5 kg=_Tg
3. 25ng=_cg
4. 48mg=_pg
5. 2.5HM=_MM
6. 54cm=_GM
8. 34.40mm=___Dm
9. 5.6dL=_pL

I attached a chart PLEASE ANSWER ASAP!! Thanks :)

Iknow #2 is d. i just need to know why

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.

Answer explain why it is not possible to deduce a complete order of reactivity.