33

Activity Series for Metals

K (K1+)Ba (Ba2+)Sr (Sr2+)Ca (Ca2+)Na (Na1+) M

etal

+ c

old

H2O

H2

(gas

) +hy

drox

ide

Mg (Mg2+)Al (Al3+)Mn (Mn2+)Zn (Zn2+)O

xide

s not

redu

ced

by H

2 (g

as)

Cr (Cr3+)Fe (Fe2+,3+)Cd (Cd2+) M

etal

+ h

ot w

ater

H

2 (g

as) +

oxi

de o

r hyd

roxi

de

Co (Co2+)Ni (Ni2+)Sn (Sn2+)Pb (Pb2+)H2 (H1+)

Met

al +

aci

d H

2 (g

as) +

salt

Sb (Sb3+)

As (As3+)

Bi (Bi3+)

Oxi

des r

educ

ed b

y H

2 (g

as)

Cu (Cu2+)

Met

al +

O2 (

1 at

m)

oxi

de

Ag (Ag1+)

Pd (Pd2+)

Hg (Hg2+)

Pt (Pt2+)

Oxi

des r

educ

ed

by h

eat a

lone

Au (Au3+)

Form

s oxi

des

only

indi

rect

ly