1. List the metals that reacted with warm water: Ca and Mg But, for those metal did react in hot water: Fe and Pb Cu and Ag can\'t react with all hot and warm water becuase they stand behind H as show: electrolysis Pt2+ 2.For those metals that did react, write molecular and net-ionic equations: a.) Ca(s) + 2 H2O(l) ------> Ca(OH)2(aq) + H2(g) Ca(s) + 2H2O(l) -------> Ca2+(aq) + 2OH-(aq) + H2(g) b.) Mg(s) + 2H2O(l) ------> Mg(OH)2(s) + H2(g) (on net-ionic) c.) Fe(s) + 2H2O(l)(hot water) -----> Fe(OH)2(s) + H2(g) (no net-ionic) d.) Pb(s) + 2H2O(l)(hot water) -----> Pb(OH)2(s) + H2(g) (no net-ionic) and all 4 metals Ca , Mg , Fe , Pb when they react with water give base solution, then they make indicator: phenolphthalein changes to pink color.MetalIonReactivityExtractionKK+ reacts with water (Mg reacts very slowly) electrolysis NaNa+LiLi+SrSr2+CaCa2+MgMg2+AlAl3+reacts with acidsCincluded for comparisonMnMn2+ reacts with acidssmelting with cokeZnZn2+CrCr2+FeFe2+CdCd2+CoCo2+NiNi2+SnSn2+PbPb2+H2H+included for comparisonCuCu2+ may react with some strongly oxidizing acidsheat or physical extractionAgAg+HgHg2+AuAu3+Pt Pt2+ Solution 1. List the metals that reacted with warm water: Ca and Mg But, for those metal did react in hot water: Fe and Pb Cu and Ag can\'t react with all hot and warm water becuase they stand behind H as show: electrolysis Pt2+ 2.For those metals that did react, write molecular and net-ionic equations: a.) Ca(s) + 2 H2O(l) ------> Ca(OH)2(aq) + H2(g) Ca(s) + 2H2O(l) -------> Ca2+(aq) + 2OH-(aq) + H2(g) b.) Mg(s) + 2H2O(l) ------> Mg(OH)2(s) + H2(g) (on net-ionic) c.) Fe(s) + 2H2O(l)(hot water) -----> Fe(OH)2(s) + H2(g) (no net-ionic) d.) Pb(s) + 2H2O(l)(hot water) -----> Pb(OH)2(s) + H2(g) (no net-ionic) and all 4 metals Ca , Mg , Fe , Pb when they react with water give base solution, then they make indicator: phenolphthalein changes to pink color.MetalIonReactivityExtractionKK+ reacts with water (Mg reacts very slowly) electrolysis NaNa+LiLi+SrSr2+CaCa2+MgMg2+AlAl3+reacts with acidsCincluded for comparisonMnMn2+ reacts with acidssmelting with cokeZnZn2+CrCr2+FeFe2+CdCd2+CoCo2+NiNi2+SnSn2+PbPb2+H2H+included for comparisonCuCu2+ may react with some strongly oxidizing acidsheat or physical extractionAgAg+HgHg2+AuAu3+Pt Pt2+.

1. 1. List the metals that reacted with warm water: Ca and Mg
But, for those metal did react in hot water: Fe and Pb
Cu and Ag can't react with all hot and warm water becuase they stand behind H as show:
electrolysis
Pt2+
2.For those metals that did react, write molecular and net-ionic equations:
a.) Ca(s) + 2 H2O(l) ------> Ca(OH)2(aq) + H2(g)
Ca(s) + 2H2O(l) -------> Ca2+(aq) + 2OH-(aq) + H2(g)
b.) Mg(s) + 2H2O(l) ------> Mg(OH)2(s) + H2(g) (on net-ionic)
c.) Fe(s) + 2H2O(l)(hot water) -----> Fe(OH)2(s) + H2(g) (no net-ionic)
d.) Pb(s) + 2H2O(l)(hot water) -----> Pb(OH)2(s) + H2(g) (no net-ionic)
and all 4 metals Ca , Mg , Fe , Pb when they react with water give base solution, then they make
indicator: phenolphthalein changes to pink color.MetalIonReactivityExtractionKK+ reacts with
water (Mg reacts very slowly)
electrolysis
NaNa+LiLi+SrSr2+CaCa2+MgMg2+AlAl3+reacts with acidsCincluded for
comparisonMnMn2+ reacts with acidssmelting
with cokeZnZn2+CrCr2+FeFe2+CdCd2+CoCo2+NiNi2+SnSn2+PbPb2+H2H+included for
comparisonCuCu2+ may react with some strongly oxidizing acidsheat or
physical
extractionAgAg+HgHg2+AuAu3+Pt
Pt2+
Solution
1. List the metals that reacted with warm water: Ca and Mg
But, for those metal did react in hot water: Fe and Pb
Cu and Ag can't react with all hot and warm water becuase they stand behind H as show:
electrolysis
Pt2+
2.For those metals that did react, write molecular and net-ionic equations:

2. a.) Ca(s) + 2 H2O(l) ------> Ca(OH)2(aq) + H2(g)
Ca(s) + 2H2O(l) -------> Ca2+(aq) + 2OH-(aq) + H2(g)
b.) Mg(s) + 2H2O(l) ------> Mg(OH)2(s) + H2(g) (on net-ionic)
c.) Fe(s) + 2H2O(l)(hot water) -----> Fe(OH)2(s) + H2(g) (no net-ionic)
d.) Pb(s) + 2H2O(l)(hot water) -----> Pb(OH)2(s) + H2(g) (no net-ionic)
and all 4 metals Ca , Mg , Fe , Pb when they react with water give base solution, then they make
indicator: phenolphthalein changes to pink color.MetalIonReactivityExtractionKK+ reacts with
water (Mg reacts very slowly)
electrolysis
NaNa+LiLi+SrSr2+CaCa2+MgMg2+AlAl3+reacts with acidsCincluded for
comparisonMnMn2+ reacts with acidssmelting
with cokeZnZn2+CrCr2+FeFe2+CdCd2+CoCo2+NiNi2+SnSn2+PbPb2+H2H+included for
comparisonCuCu2+ may react with some strongly oxidizing acidsheat or
physical
extractionAgAg+HgHg2+AuAu3+Pt
Pt2+