12. In which equilibrium system will an increase in pressure cause a shift to the left? A) C(s)+ O2(g) ⬅️➡️CO2(g)
C) 2 Mg(s) + O2(8) ⬅️➡️2 MgO(s)
B) CaCO2(s)⬅️➡️ CaO(s)+ CO2(g)
D) 2 H2(g) + O2(g) ⬅️➡️2 H2O(g)

Given that 1 mi = 1760 yd, determine what conver- sion factor is appropriate to convert 1849 yd to miles; to convert 2.781 mi to yards.

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

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?