I think A but I’m not sure so
Many food chains together create a food web.
hope this helps,, have a nice day :))
Each shell contains a fixed number of electrons. The general formula of the number of electrons can be hold in n-th shell is 2n². 5th shell can hold 2x5² = 50 number of electrons.
1st shell contains 2 X 1²= 2 number of electrons, 2nd shell contains 2 X 2²=8 number of electrons, 3rd shell contains 2 X 3²=18 number of electrons, 4th shell contains 2 X 4²=32 number of electrons, 5th shell contains 2 X 5²=50 number of electrons and so on.
C(Molarity) = n of solute/V of solution (mol/L)
glucose(C6H12O6) = 180g/mol
glucose 35g = 35g/(180g/mol) = 0.1944mol
We need density of solution here, and I assume it as density of phenol, 1.07g/mL. (I don't know why the question doesn't contain it)
phenol 0.16kg = 0.16kg/(1.07kg/L) = 0.1495L
0.1944mol/0.1495L = 1.300M(mol/L)
