Please help i don't understand this at all if you can't see the awnsers there A 50% short, 50% tall
B 100% short
C 100% tall
D 25% short, 75% tall ​

Yes she is correct. the answer is completely correct

The real answer is keeping the world healthy so we won’t die

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

A1 a 2 a 3 ooh lol i think that's it