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Why does colour change after 5 minutes of heating during Benedict's test?
Wiki User
∙ 8y ago
Heating is necessary to transform sugars in enediols which react with Cu(2+).
Wiki User
∙ 8y ago
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Why Heating zinc oxide is a physical change Why?
It is a physical change. I goes from white, to yellow, back to white.
Why colour of CuSO4 crystals changes on heating?
The blue copper sulfate pentahydrate loss by heating water and become an anhydrous white sulfate.
Why does CuCO3 turns black when heated?
on heating copper carbonate decomposes to cupric oxide which is black in colour.
Does colour change for chemical changes?
It can, yes.
Can indicators change colour twice?
Yes.
Can a diamond change when heated?
Yes. The colour of the stone will be different, and evidence of heating will be obvious to a gemologist. Heating a diamond devalues it.
Does copper sulphate undergo any physical or chemical changes during heating?
On heating penta hydrated copper sulphate undergoes dehydration and changes colour from blue to white that means physical change but on heating it does not show a chemical change.
What are the Benedicts test results for glucose?
the solution will turn a 'brick red' colour if positive but will stay blue if negative.
What colour does Benedicts solution go with milk any kind of?
Yellow, because milk contains lactose which is a reducing sugar.
Why brinjals are cut to pieces five minutes before cooking?
it is because the colour will change into brown
What is fill color in excel?
It is the actual colour of the cell. You can choose to change what colour is. Normally it is white.It is the actual colour of the cell. You can choose to change what colour is. Normally it is white.It is the actual colour of the cell. You can choose to change what colour is. Normally it is white.It is the actual colour of the cell. You can choose to change what colour is. Normally it is white.It is the actual colour of the cell. You can choose to change what colour is. Normally it is white.It is the actual colour of the cell. You can choose to change what colour is. Normally it is white.It is the actual colour of the cell. You can choose to change what colour is. Normally it is white.It is the actual colour of the cell. You can choose to change what colour is. Normally it is white.It is the actual colour of the cell. You can choose to change what colour is. Normally it is white.It is the actual colour of the cell. You can choose to change what colour is. Normally it is white.It is the actual colour of the cell. You can choose to change what colour is. Normally it is white.
What colour do NaCl impart on heating?
The color remain unchanged.
What colour is a millon's reagent when mixed with egg albumin after heating?
after heating, it's precipitate turns from flesh to red.
How can anhydrous salt changes into their hydrated salt?
On heating, hydrated salts lose their water of crystallization and as a result, the crystals lose their shape and colour and change to a powdery substance.
Why Heating zinc oxide is a physical change Why?
It is a physical change. I goes from white, to yellow, back to white.
When a worksheet is acative the tab color displays as what?
You can change colour settings, but normally it is white when it is selected.You can change colour settings, but normally it is white when it is selected.You can change colour settings, but normally it is white when it is selected.You can change colour settings, but normally it is white when it is selected.You can change colour settings, but normally it is white when it is selected.You can change colour settings, but normally it is white when it is selected.You can change colour settings, but normally it is white when it is selected.You can change colour settings, but normally it is white when it is selected.You can change colour settings, but normally it is white when it is selected.You can change colour settings, but normally it is white when it is selected.You can change colour settings, but normally it is white when it is selected.
What is the difference in colour between kerosene and home heating oil?
PINK
