How many moles of water, contain 2.0 x 10^22 molecules of water

1 mole 6.02x10²³ molecules
? moles 2.0x10²² molecules
 
moles H2O = (2.0x10²²) x 1 / 6.02x10²³

moles H2O = 2.0x10²² / 6.02x10²³

=> 0.033 moles of H2O

Hi. where is the graph?

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