Plant structures that increase the surface area for absorption of water and minerals are a. root hairs b. chloroplast c. guard cells d. lenticels

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?

Use the periodic table to find the molar mass of each element. molar mass h = g/mol molar mass s = g/mol molar mass o = g/mol