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How many unknown substances are used in the unknown I lab?

The over the counter drugs lab: The unknown match for this lab was acetaminophen.

The mass is found by weighting the items and the volume is found by water displacement.

The chemicals used in the lip stick extraction chromatography lab is?

Rubber cement was used to make a mold of the apple to retrieve the bite mark. 

Soil Lab: Griess test and concentration was the 2 types of analysis used in the soil lab.

Soil Lab: The test tab that turned the soil water pink was Chlorine tabs.

The mobile phase of the lipstick chromatography lab used isoamyl alcohol, acetone, water and ammonium hydroxide.

What 3 chemcials in the unknown substance I lab were toxic and corrosive.

Which of the following is considered to be one of the eight major food allergens?