Please help with this I'm stuck... 4. What is the pH of a 4.7 x 10-9 M HCl solution?

a. 4.67
b.- 8.33
c. 11.21
d. 2.93​​

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

Wagons/motorized vehicles

As cooking food that has to go in the oven

Answer two atoms of oxygen;