Ordinary table sugar is a complex hydrocarbon molecule: C12,H22,O11. Notice that it's 11 water molecules and 12 carbon atoms. When Sugar is heated, some of the water is driven off leaving extra carbon atoms laying around. And what color is carbon? Making sugar is a relatively complex process, breaking it down just takes heat.
The taste of blackened sugar is 'bittery' and 'burnt', sometimes some sweet notes are left (caramel-like).
magic. maic and magnets.
a chemical change take the place because the substance went from a solid to a liquide and can no longer be turned back into a sugar cube.
A chemical change takes place.
I'd say it's a chemical change, because it's obviously not a sugar anymore...
When sugar is heated in an inert atmosphere, such as in the absence of oxygen, it undergoes a process called thermal decomposition. This leads to the breakdown of sugar into smaller molecules such as water and carbon. The reaction produces a dark brown/black substance known as caramel.
add lemon
magic. maic and magnets.
Carbon or other black products of the thermal decomposition of sugar are obtained by heating (the process is called thermal dissociation).
a chemical change take the place because the substance went from a solid to a liquide and can no longer be turned back into a sugar cube.
A chemical change takes place.
Sugar is not an alkaline substance.
Well i think you must be knowing a term called bleaching of sugar.Sugar crystals when heated up the breaking point of the bonds(which depends what type of sugar we are using),then the water molecules in it get evaporated and we obtain a black mass of carbon.The reaction is C12H22011 -------HEAT----------->12C + 11H20 Sugar Black Water Mass of Carbon
If this question is asking whether heated, liquefied sugar (caramel) can be turned back into sugar granules, then technically, the answer is yes. It is very difficult and requires superheating and incredibly slow, gradual cooling to ensure the sugar reforms as crystals. The grade and quality of the sugar will almost certainly be significantly reduced.
the sugar will melt
I'd say it's a chemical change, because it's obviously not a sugar anymore...
Sugar is a pure substance because everything in a sample is alike: a molecule of sugar.
this question is awsome for fair testing projetcts which are quick and easy!