Eh, I think that is what these are?? I need help, I have no idea what I'm doing, the book doesn't offer much solace. I'll show you the problem and my answers.
Determine whether each of the following reactions can occur. If the reaction does occur, write the complete, balanced equation. If the reaction does not occur, explain why not.
Problem 1: 2Cr(s) + SnCl4(aq) --->
My answer: Cr(s) + SnCl4(aq) ---> CrCl4(aq) + Sn
Problem 2: 2Ni(s) + MgSO4(aq) --->
My answer: This cannot happen, because Mg is more reactive than Ni.
Problem 3: Zn(s) + CdCl2(aq) --->
My answer: Zn(s) + CdCl2(aq) ---> ZnCl2(aq) + Cd(s)
Problem 4: Ag(s) + ZnCO3(aq) -->
My answer: This cannot happen, because Zn is more reactive than Ag.
2007-05-23 11:20:29 · 2 answers · asked by salmonella_jr 3 in Science & Mathematics ➔ Chemistry