4. Given the data shown, what two substances does the unknown mixture contain?
Substance Appearance
Vinegar
Litmus
(ph)
R-B Base
B-R Acid
Biuret
(protein)
lodine
(starch)
Powder
0
+
Baking
Powder
Baking
Soda
Corn
Starch
Powder
Base
+
Powder
0
Gelatin
Crystal
Acid
+
Salt
Crystal
0
Unknown
Acid
Crystal
& Powder
Mixed
Mixed
A. Gelatin and baking powder
B. Gelatin and baking soda
C. Gelatin and corn starch
D. Salt and corn starch
Answers: 2
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4. Given the data shown, what two substances does the unknown mixture contain?
Substance Appearanc...
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