Classify each of the following as an element (E), compound (C), heterogenous (H), or solution (S). **Remember a solution is a Homogenous Mixture**
a. Ocean water -
e. Copper -
i. Aluminum foil -
b. Calcium -
f. Rubbing alcohol -
j. Milk -
c. Vitamin C -
g. After-shave lotion -
k. Table salt -
d. Dry ice (solid CO2) -
h. Hamburger meat -
1. Tron nail -

Ithink 2 is the correct

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

Do you have any options for this question?