Is atom significance when they are so small

Lithium diisopropylamide [(ch3)2ch]2nli, referred to as lda, enjoys many uses as a strong base in synthetic organic chemistry. it is customarily prepared by the reaction of diisopropylamine [(ch3)2ch]2nh with butyllithium. draw the products of the reactions in the appropriate boxes and select the acid, base, conjugate acid, and conjugate base. be sure to answer all parts.

What is impossible to do with a hypothesis

Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?