Complete the following sentences describing how to solve a weak acid equilibrium problem.
Step 1: Write the _____ and ____expression.
Step 2: Define ____ as the change in concentration, usually of _____
Step 3: Construct a ____ that includes the unknown.
Step 4: Make the assumption that _____ is ____ compared to the _____
Step 5: Substitute the values into the ____ expresion and solve for _____
Step 6: Check that your ____ the was justified, if not use the ____ to solve for x.

assumption
reaction table
balanced reaction equation
final concentration
initial concentration
very small
very large
quadratic formula
x
kb
kₐ
H₃O⁺
H₂O
HA
A⁻
ОН⁻