When a solution of ammonium chloride, nh4cl, is added to a solution of lead (ii) nitrate , pb(no3)2, a white precipitate, pbcl2, forms. which of the following is the total ionic equation for this reaction?

a) 2 nh4cl(aq)+pb(no3)2(> pbcl2(s)+2 nh4no3 (aq)
b) 2 nh4+(aq)+2cl-(aq)+pb2+(aq)+2no3-(&g t; pbcl2(s)+2nh4+(aq)+2no3-(aq)
c) pb2+(aq)+2cl-(> pbcl2(s)
d) pb2+(aq)+cl2-(> pbcl2(s)

B)

Explanation:

The total ionic equation contains all the species in the reaction in the ionic form.

Spectator ions are defined as the ions which does not get involved in a chemical equation or they are ions which are found on both the sides of the chemical reaction present in ionic form.

Spectator ions are also written in total ionic equations.

The chemical equation is:

The total ionic equation is -

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-

that's what i got you can count the number of atoms