1. Mix and match PRECIPITATION LAB Objective
Predict double replacement reactions, observe them, and express them as using chemical equations, total ionic equations, and net equations.

2. Make a table to list these, write the chemical formulas, and briefly describe each solution
Name
Formula
Description
B2:
A1: A2 A3
A list down
A1 Copper (II) nitrate
A2 Nickel (II) nitrate
A3 Cobalt (II) nitrate
B list across
B1 Sodium carbonate
B2 Sodium chloride

3. EXAMPLE A1
Copper (II) nitrate
Cu(NO3)2
Blue clear liquid

4. Predict products and predict if the reaction between A and B happens
Name
Formula
Description
B2:
A1:
Predict products
Note solubility
Predict A2 A3
Predict based on double replacement
Write formula of each product
Check on the solubility chart and note
If both dissolve, no reaction
If there is a precipitate, reaction

5. Example block at intersection of A1 and B1
CuCO I
NaNO S
Predict reaction? + or -

6. Mix
B1:
Name
Formula
Description
B2:
A1:
Predict products
Note solubility
Mix and observe A2 A3
In spot plate, set up reactions between A and B chemicals, 6 reactions in all
Combine 3 drops of each in wells of spot plate and record observations

7. Example block at intersection of A1 and B1
CuCO I
NaNO S
Predict reaction? + or -
Describe what you actually see when you mix 3 drops of each chemical in the well between them

8. Write For TWO reactions: For TWO non-reactions Write chemical equation
Write total ionic equation
Write net ionic equation
For TWO non-reactions
Explain why the reaction did not happen using the numbered solubility rules