Which is the correct sequence of transferring heat through convection?
1. As a result, the heated part becomes less dense or lighter.
2 The colder air above us is denser and heavier so it goes
down and pushes the hot air upward.
3 The cold air is pushed upward by colder heavier air above. In
this way, the entire liquid or gas becomes evenly heated.
4 When liquid or gas is heated the molecules of the heated part
move faster and faster away from each other.​

A.(nh4)(2co3)is the correct answer 

Answerthe half-reaction having the greatest tendency to occur at the anode:     i₂(aq) + 2e⁻  ⇄ 2i⁻  ;   e = +0.53 v======oxidation occurs at the anode. we must therefore find the half-reaction with the greatest tendency to oxidize.the given values of e are reduction potentials (the form of the half-reactions are of reduction).the lower the reduction potential, the higher the potential to oxidize. the half-cell with the lowest reduction potential will have the greatest tendency to oxidize at the anode.the half-reaction having the greatest tendency must be    i₂(aq) + 2e⁻  ⇄ 2i⁻    e = +0.53 vbecause its reduction potential is the lowest out of the three.

Yes it i’m going sorry about i️i️ is your a way