Why do lakes only freeze at the surface? a

more dense water rises to the top
B more dense water sinks to the bottom
Cthe coldest water sinks to the bottom

D the warmest water rises to the top
Plz hurry thank you

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.

Y=‐1x + 7 if y has a value of ‐24 what is the value of x?

Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore