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When biuret reagent is added to an unknown colorless solution the solution turns light purple. this indicates the presence of which molecules?
Wiki User
∙ 7y ago
process that release energy by breaking down food molecules in the presence of oxygen
Wiki User
∙ 6y ago
Wiki User
∙ 7y agoThe biuret reagent is used as a protein test.
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Which solids dissolve in water to form a colorless solution?
Sugar is one.
How a solution is formed?
A solution is formed as individual molecules from the solid are surrounded by molecules of solvent and then diffusing away from the surface of the solid being dissolved.
What is the name when sugar is mixed with water?
I believe it's called simple syrup. In Mexico it's called jarabe.
What visible evidence indicates that a solution is saturated?
If more solute is added to the solution and the solute remains undissolved, then you know that solution is saturated.
When using Biuret reagent what indicates the presence of proteins?
Biuret solution turns a shade of purple if proteins are present. Specifically, it turns a shade of purple if peptide bonds are present. A peptide bond is the bond formed between amino acids.
How do you use colorless in sentence?
Water is usually a colorless liquid.
What is a color of a solution?
Colorless
Which compound is colorless in a water solution Al2SO43 Cr2SO43 Fe2SO43 Co2SO43?
Al2SO43 is colorless in a water solution.
Is salt solution a conductor or insulator of electricity?
A salt solution in water is a conductor, due to the disassociation of the salt molecules into oppositely charged ions in the presence of the polar water molecules. A salt solution in a nonpolar solvent would likely be an insulator, as the salt molecules probably would not dissociate.
What is the colour of sodium sulphate solution by chemists?
The solution is colorless.
What is the color of a lithium solution?
Colorless
What color is K2SO4 solution?
It is colorless
What is final colour of solution formed when zinc metal is dipped in a solution dilute sulphuric acid?
Colorless. The resulting solution is zinc sulfate, and Zn2+ ions are colorless.
When iodine solution is mixed with an unknown sample of food the mixture turn blue black this color change indicates the presence of?
An enzyme.
How do you test for bromide ions?
Add silver nitrate solution to a solution of bromide ions. A pale yellow precipitate of silver bromide formed indicates the presence of bromide ions.
What is the color of sodium silicate solution?
This solution, if it is pure, is white or colorless.
Hannah does an experiment. She has two colorless chemicals that she mixes together in a beaker. indicates that a chemical change occurs when she mixes the two chemicals together?
Hannah does an experiment. She has two colorless chemicals that she mixes together in a beaker. Which observations indicate that a chemical change occurs when she mixes the two chemicals together?
