Use the Data Table below for Questions 4 and 5: 4.. A mixture contains 2 out of the 4 substances (A, B,C, D). the mixture dissolves in solution 1, fizzes
with solution 2, and turns dark blue in solution 3. The mixture is most likely a
combination of which 2 substances? A). A and B B). B and C C). C and D D).B and D

Ithink it’s a forms a perfect sphere or a smooth flattened oval

The correct answer is "atomic weight".

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na

Sorry i dont understand the question can you rephase it?