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What chemical test is performed to indicate the completion of the hydrolysis of starch by acid?
Wiki User
∙ 12y ago
If using acid-catalyzed hydrolysis of starch you can tell the hydrolysis is complete with the solution no longer gives a bluish/purple color with iodine solution. The color should be colorless.
Wiki User
∙ 11y ago
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The coeficients in a chemical equation indicate?
The coefficients in front indicate the number of actual molecules in the entire formula. This shows a balanced chemical equation.
What does starch hydrolysis by a bacterium indicate?
It indicates that bacterium had used their alpha-amylases enzyme to break down the starch moleculeyieldingdextrins, maltose and glucose. On a petri-dish, apositivehydrolysis is shown by clear (white) halo. Negative hydrolysis is shown by purple tobrowncolor.
The chemical formula of a compound does not indicate?
The chemical formula of a compound does not indicate the way that elements are joined in the compound. Chemical formulas tell you the identity of the elements in the compound and the relative proportions of the elements.
What name is used to indicate a chemical dependency to alcohol?
An addiction.
How are coefficients used in writing chemical equations?
They indicate the number of molecules in a substance.
What do chemical symbols indicate?
Chemical symbols indicate elements.
Why did you refrigerate the gelatin cultures before observing them for liquefaction?
To indicate whether gelatin had been hydrolyzed by those cultures or not. If gelatin hydrolysis occurs, liquefaction occurs even afterrefrigerationto indicate a positiveresult. If gelatin hydrolysis does not occur, the gelatin will solidifies afterrefrigeration
What do you use a chemical indicator for?
to indicate what the chemical is.
What in general terms does a chemical equation indicate?
A chemical equation is the representation of a chemical reaction.
What do scientists do to indicate a chemical change occurrence?
They write a chemical equation.
The coeficients in a chemical equation indicate?
The coefficients in front indicate the number of actual molecules in the entire formula. This shows a balanced chemical equation.
What does starch hydrolysis by a bacterium indicate?
It indicates that bacterium had used their alpha-amylases enzyme to break down the starch moleculeyieldingdextrins, maltose and glucose. On a petri-dish, apositivehydrolysis is shown by clear (white) halo. Negative hydrolysis is shown by purple tobrowncolor.
The chemical formula of a compound does not indicate?
The chemical formula of a compound does not indicate the way that elements are joined in the compound. Chemical formulas tell you the identity of the elements in the compound and the relative proportions of the elements.
What is an academic degree?
Title conferred by a college or university to indicate completion of a course of study or extent of academic achievement.
What should not be used to indicate a chemical reaction?
Change of shape can not be used to indicate a chemical reaction has happened. Examples of evidence of a chemical reaction are changes in odor or color.
What name is used to indicate a chemical dependency to alcohol?
An addiction.
Can the development of a solid can indicate the occurrence of a chemical change?
Yes
