Predicting Double Replacement Reactions

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Step by step-

1. Write names of products by switching last names

2. Check solubility on table F.

soluble --> (aq)

insoluble--> (s)= precipitate = means a reaction occurs

2 soluble products = no reaction=STOP

****The Soluble 5 Exception

Hydrogen carbonate H₂CO_3(aq) --> H₂O_(l) + CO_{2 (g)}

Hydrogen sulfite H₂SO3_(aq) --> H₂O_(l) + SO_2(g)

Ammonium hydroxide NH₄OH_(aq) --> H₂O_(l) + NH_3(g)

Hydrogen Sulfide H₂S_(g)

Hydrogen Hydroxide HOH......H₂O_(l)

1. Write names of products by switching last names

2. Check solubility

A. silver nitrate (aq)+ potassium chromate(aq) è potassium nitrate(aq) + silver chromate(S)

B. sodium sulfate(aq) + barium chloride(aq)è barium sulfate(s) + sodium chloride(aq)

C. lithium hydroxide(aq) + sodium chromate(aq)è sodium hydroxide(aq) + lithium chromate(aq)

Both Products are (aq), No Reaction

D. acetic acid(aq) + cesium hydroxide(aq) è cesium acid + acetic hydroxide

NO ACIDS NAMES ALLOWED-Change it

hydrogen acetate(aq) + cesium hydroxide(aq) è hydrogen hydroxide + cesium acetate(aq)

Hydrogen Hydroxide is an exception-Change it èwater(l) + cesium acetate(aq)

E. ammonium chloride(aq) + sodium hydroxide(aq)è ammonium hydroxide(aq) + sodium chloride(aq)

Ammonium Hydroxide is an exception-Change it to water and ammonia

ammonium chloride(aq) + sodium hydroxide(aq)è water(l) + ammonia(g) + sodium chloride(aq)