Based on the activity series, predict whether each of the following possible reactions will occur.

I am stuck on this, can someone please explain how they got their answer?

Mg(s)+Co(NO3)2(aq)----

Question

Based on the activity series, predict whether each of the following possible reactions will occur.

I am stuck on this, can someone please explain how they got their answer?

Mg(s)+Co(NO3)2(aq)---->

anonymous · Answer

Do you have a copy of the activity series? You need to look at the chart.

anonymous · Answer

A metal is only able to displace something below it, but not the other way around.

aaronq · Answer

Mg is highly reactive, $\sf Co^{2+}$ will "displace" (i.e. oxidize) Mg and precipitate as a solid metal.

supernova_sonntag · Answer

Yes I do and the series and I understand now. Thank you both.