22 the compounds ch3och3 and ch3ch2oh have different functional groups. therefore, these compounds have different
(1) chemical properties
(2) gram-formula masses
(3) percent compositions by mass
(4) numbers of atoms per molecule

(1) chemical properties is the correct answer.
These two compounds are also called isomers.
Hope this helps~

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