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

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

Geothermal energy for industrial use is available almost anywhere. a. true b. false

A50.0 ml sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. what is the new volume? 0.0100 ml 0.325 ml 25.0 ml 100. ml