5. What is the name of the element pictured below? * P:10
N:10
O a. neon
O b. nickel
O c. barium
O d. calcium

Tell me the iupac name of the following compounds:

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.