Complete the schemes of possible reactions: a) LiNO3 + Na2CO3 → b) Na2S + HgCl2 →

Complete the schemes of possible reactions: a) LiNO3 + Na2CO3 → b) Na2S + HgCl2 → c) AgNO3 + Ba (OH) 2 → d) Ni (OH) 2 + HCl → e) MgCl2 + K2SO4 → f) FeS + HCl →

Let us write down the continuation of the equation of chemical reactions for the following compounds. It turns out the following.

a) LiNO3 + Na2CO3 →

This reaction does not proceed.

b) Na2S + HgCl2 → HgS ↓ + 2NaCl.

Exchange reaction. When sodium sulfide and mercury chloride react, the result is mercury sulfide and sodium chloride.

Let’s write the reaction in ionic form.

S2- + Hg2 + → HgS ↓

c) 2AgNO3 + Ba (OH) 2 → 2AgOH ↓ + Ba (NO3) 2.

Exchange reaction to produce silver hydroxide and barium nitrate.

Let’s write it in ionic form.

2Ag + + 2OH- → 2AgOH ↓

d) Ni (OH) 2 + 2HCl → 2H2O + NiCl2.

Exchange reaction with the formation of water and nickel chloride.

2OH- + 2H + → 2H2O.

e) MgCl2 + K2SO4 →

This reaction does not proceed.

f) FeS + 2HCl → FeCl2 + H2S.

Exchange reaction to produce ferric chloride and hydrogen sulfide.

S2- + 2H + → H2S.