Calculate the difference in pressure between the top and the bottom of a container exactly 84 cm deep filled at 27 degrees with: a. Water (d = 0.990 g/cm3 ) b. Copper (d = 13.6 g/cm3 )

In any energy conversion, some of the energy is lost to the environment as question 5 options: electrical energy potential energy sound energy thermal energy

Calcium chloride +gold(1) oxide—>

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.)