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Why would glucose give positive result upon prolonged heating with seliwanoff's reagent?
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What compounds are formed by Prolonged heating of glycine at 170 degrees?
Some compounds that are formed by prolonged heating of glycine are glycyl-glycine, alaine, aspartic acid, methylamine, oxalic, and diketopiperazine. For these compounds to form, the glycine needs to be heated at 170 degrees celsius.
Is heating liquid honey a change of state?
No. Simply heating honey, while making it less viscus, does not change its state. It remains a liquid. Unless heating is prolonged enough to cause evaporation, the honey will remain a liquid, so no change of state occurs by simply heating.
Does benedict's solution need heating when testing for glucose?
It is part of the experiment to determine the sugar present... it does not react with non reducing sugar.
What is the purpose of prolonged application of heat on the smear?
by application of heat and a mordant, the cell can be stained. the purpose of heating is to soften the waxy material of the cell wall and allow the stain enter the cell. rock on University of Luzon!
What problems arise what the slide is heated in a flame?
Prolonged heating of the slide can cause the slide to shatter.
Why sucrose does not give a positive Benedict's test but hydrolyzed sucrose does give a positive beneditcts test?
Sucrose is formed from glucose and fructose.Sucrose is formed from glucose and fructose. Glucose and fructose gives positive test for benedict becuz both of them are reducing sugars whereas sucrose is not a reducing sugar so it gives negative test for benedict. On prolonged heating,sucrose will form glucose and fructose (reducing sugars)which ultimately gives a positive result .
Explain why the iodine test gave such results upon prolonged heating?
explain why the iodine test gave such results upon prolonged heating
What problems can arise when the slide is heated in a flame?
Prolonged heating of the slide can cause the slide to shatter.
What compounds are formed by Prolonged heating of glycine at 170 degrees?
Some compounds that are formed by prolonged heating of glycine are glycyl-glycine, alaine, aspartic acid, methylamine, oxalic, and diketopiperazine. For these compounds to form, the glycine needs to be heated at 170 degrees celsius.
Is heating liquid honey a change of state?
No. Simply heating honey, while making it less viscus, does not change its state. It remains a liquid. Unless heating is prolonged enough to cause evaporation, the honey will remain a liquid, so no change of state occurs by simply heating.
Are solar heating system classified as positive and negative?
yes
What is a ptc heating element?
Positive temperature coefficient heating element. Resistivity grow larger with higher temperatures so the heating element should be self regulating.
Does benedict's solution need heating when testing for glucose?
It is part of the experiment to determine the sugar present... it does not react with non reducing sugar.
What are positive and negative effects of ash fall?
positive: gives nutrient soil and gives free heating. negative: kills people and ash is poisonous.
Is frying of oil a physical change?
You can't really fry oil. You can heat oil, and you can use it to fry something else, such as an egg. Heating oil is a physical change, though prolonged heating causes chemical changes to occur too. The changes to the food are chemical.
What indicates a positive result for the benedicts test?
Benedict’s is used to test for glucose but not for sucrose. The test involves heating the sugar with either of the chemicals and observing the color change of blue to orange.Positive is a change of blue to orange.
What is the purpose of prolonged application of heat on the smear?
by application of heat and a mordant, the cell can be stained. the purpose of heating is to soften the waxy material of the cell wall and allow the stain enter the cell. rock on University of Luzon!
