Activity Series

• We are going to ignore the second half for today

• And we will ignore the halogens for now

• Leaving a list of metals

• This list has the most reactive metals on the top and the least reactive metals on the bottom.

• Meaning the elements in the top would rather be in a compound more then the elements on the bottom.

• A single replacement reaction will only happen if the element by itself is higher on the list then the element in the compound.

• For example:• Ni + KOH • Find Ni• Find K• Ni is lower then K so this will not

react. We would write “No rxn”

No rxn

• Here is another example:• Al + CuCl2 • Find Al• Find Cu• Al is higher then Cu so this can react.• We can then write the products.• What element will be by itself now?• What will the compound look like?• Balance

Cu + AlCl3

• Here is another example:• Mn + AgNO3 • Find Mn• Find Ag• Mn is higher then Ag so this can

react.• We can then write the products.• What element will be by itself now?• What will the compound look like?• Mn will have a +2 charge• In other problems it will be Mn(II)• Balance

Ag + Mn(NO3)2

• Here is another example:• Sn(IV) + NaCN • Find Sn• Find Na• Sn is lower then Na so this is no

reaction

No rxn

Practice

• Na + ZnSO4

• Cr(II) + Fe2O3

• Pb(II) + CaCO3

• Fe(III) + PbI2

• K + LiOH

The halogen

• This works the same way with the halogens

• Example:• Br2 + NaCl • Bromine is below chlorine so its

no reaction.

The halogen

• Example:• F2 + KI • Fluorine is above Iodine so this

will react.• What element will be by itself

now?• What will the compound look

like?• Balance

Practice

• F2 + AlCl3

• I2 + ZnCl2

• Cl2 + FeBr2