What is the color result for red and blue litmus paper when exposed to the fume of heated albumin powder? 2) Salkowski test from a random experiment produced a white precipitate upon addition of the acid to the cholesterol. Is the result positive or negative? Why? 3) Of the following, which left a translucent spot? Why did it left a translucent spot and why did it not leave a translucent spot? -cottonseed oil -water -ether -alcohol 4) Give the color of the precipitate for the following reagents: - CuSO4 - Picric acid - Lead acetate - Phosphotungstic

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Hello, please answer the questions 1, 2, 3 and 4.

1. What is the color result for red and blue litmus paper when exposed to the fume of heated albumin powder?

2) Salkowski test from a random experiment produced a white precipitate upon addition of the acid to the cholesterol. Is the result positive or negative? Why?

3) Of the following, which left a translucent spot? Why did it left a translucent spot and why did it not leave a translucent spot?

-cottonseed oil
-water
-ether
-alcohol

4) Give the color of the precipitate for the following reagents:

- CuSO4
- Picric acid
- Lead acetate
- Phosphotungstic

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