Chapter 15, Problem 85CP

(a)

Interpretation Introduction

Interpretation:Using the activity series inTable 15.3, indicate whether each of the following reactions is spontaneous:

  $\text{Zn}\left(\text{s}\right){\text{ + Ca}}^{\text{2+}}\left(\text{aq}\right)\to {\text{Zn}}^{\text{2+}}\left(\text{aq}\right)\text{ + Ca}\left(\text{s}\right)$

Concept Introduction: The activity series of metals arranged from most active to least reactive:

Li > K> Ba> Ca> Na > Mg > Al > Zn > Cr > Fe > Cd > Ni > Sn > Pb > H> Cu > Ag >Hg > Pt> Au

Most active metals are easily oxidized and readily lose electrons as oxidation is the loss of electrons.

(b)

Interpretation Introduction

Interpretation: Using the activity series inTable 15.3, indicate whether each of the following reactions is spontaneous:

  $\text{2Al}\left(\text{s}\right){\text{ + 3Sn}}^{\text{2+}}\left(\text{aq}\right)\to {\text{2Al}}^{\text{3+}}\left(\text{aq}\right)\text{ + 3Sn}\left(\text{s}\right)$

Concept Introduction:The activity series of metals arranged from most active to least reactive:

Li > K> Ba> Ca> Na > Mg > Al > Zn > Cr > Fe > Cd > Ni > Sn > Pb > H> Cu > Ag >Hg > Pt> Au

Most active metals are easily oxidized and readily lose electrons as oxidation is the loss of electrons.

(c)

Interpretation Introduction

Interpretation: Using the activity series inTable 15.3, indicate whether each of the following reactions is spontaneous:

  $\text{Mg}\left(\text{s}\right){\text{ + 2H}}^{\text{+}}\left(\text{aq}\right)\to {\text{Mg}}^{\text{2+}}\left(\text{aq}\right){\text{ + H}}_{\text{2}}\left(\text{g}\right)$

Concept Introduction:The activity series of metals arranged from most active to least reactive:

Li > K> Ba> Ca> Na > Mg > Al > Zn > Cr > Fe > Cd > Ni > Sn > Pb > H> Cu > Ag >Hg > Pt> Au

Most active metals are easily oxidized and readily lose electrons as oxidation is the loss of electrons.