Use the balanced equation below to answer the question that follows 6 CO2 + 6H2O → CH20+6 ,
How many moles of water are needed to produce 4 moles of CH20?
a. 4
b. 6
c. 10
d. 24

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