What steps should you take if your calibration curve does not produce a linear relationship?

Which are defensible reasons to reject and remake a calibration?  (Select all that apply)

A cellulose acetate fiber is most likely if you observe:

The neutralizing capacity calculation assumes CaCO₃ is the only active base present.

Select ALL items that should appear in the Discussion when student and teacher calibrations disagree beyond the threshold:

 If measured mg CaCO₃/tab is [X] mg and label claim is 750 mg, percent difference is: (Report answer to 2 decimal places)

Why must standards be monotonic increasing in response?

Which metal ion is the focus of the analysis in this experiment?

If method blank is clean but calibration blank is high, most likely issue is:

A linear calibration curve indicates a proportional relationship between the peak area ratio and the concentration of Dodecane.