HELP NEEDED, ASAP How many grams of calcium carbonate are decomposed to produce 22.4 L of carbon dioxide at STP? (At. Masses: Ca = 40, C = 12, O = 16)
Select one:
a. 50 grams
b. 1000 grams
c. 90 grams
d. 100 grams

They are all full and don't need any more electrons in there outer shell.

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