3. Which chemical formula below contains the greatest amount of total atoms?

A. CO

B. Fe2O3

C. C2H4

D. C2H6O

The answer for this question is d. none of these

A) the enthralling of formation for pure element in its standard state is always positivehope this : )

Afraidsugar lol it’s the third one

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