What is the electron configuration of the aluminum cation? a. Is'2s²2p% b. Is²2s°2p°3s²3p' c. Is*2s²2p°3s?3p' d. Is'2s'2p°3s?3p*

Consider the four hypothetical metals W, X, Y, and Z. The following observations were made when Y and W were inserted into X(NO3)2 and Z(NO3)2 solutions. W(s) + X² + (aq) →→X(s) + W²+ (aq) Y(s) + Z²+ (aq) → Z(s) + Y²+ (aq) Y(s) + X²+ (aq) → no reaction W(s) + Z²+ (aq) → Z(s) + W²+ (aq) The best reducing agent is:

d. H2SO4 HO CHO.

e: H 29 add arrows here HCL, H₂0 add arows here e:p: H 30: H HO -H 0:0 ℗ H H :0: 1 H HCL, H₂O HCL, H₂0 :d:e HAH H H add anows here 12: I H •HO G H 60: f

You have a 11.5 mg sample of blood that contains various proteins. Hemoglobin is the only protein in the sample containing Fe. Hemoglobin contains 3.83% by mass of a compound called heme (C₃₄H₃₂FeN₄O₄, MW = 616.49 g/mol). You find that your 11.5 mg blood sample contains 34.9 micrograms of Fe. What is the mass percent of hemoglobin in your protein sample?   -don't prematureley round

Classify the reaction shown below. HO. Br A addition B substitution C elimination PBr3 D rearrangement