Question

Using the Activity Series in your textbook, predict if a chemical reaction will occur when the following metals and ionic solutions are combined. If a reaction occurs, complete a balanced chemical equation (including physical states) for the reaction. 2. a. Na (s) + NiCl2 (aq)-→ b. Fe (s) + AgNO3 (aq) → c. Zn (s) + CaBr2 (aq) → Chemistry 145 Lab 5 Fall 2016 TI THE HAYDEN-McNEIL STUDENT LAB NOTEBOOK Note: Insert Divi Under Cop

Answer 1

a)

For nickel and sodium

Note that sodium >> nickel

therefore, expect Na(s) --> Na+

and nickel will reduce

2Na(s) + NiCl2(aq) --> 2NaCl(aq) + Ni+2(aq)

b)

Ag is much more stable, Fe is much more acitve so

Fe(s) + AgNO3(aq) = Fe(NO3)3(aq) + Ag(s)

balance

Fe(s) + 3AgNO3(aq) = Fe(NO3)3(aq) + 3Ag(s)

c)

Ca is much more active than Zinc, so expect no reaction

Zn(s) remains and CaBr2(aq) remain in solution