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Why charring of sugar is a chemical change OR A physical change?

Charring of sugar is a chemical change because it involves the chemical decomposition of the sugar molecules due to the application of heat, leading to the formation of new substances like carbon. This change is irreversible and involves the breaking and rearranging of chemical bonds.


What gas is produced when sugar and cupric oxide reacts?

Carbon dioxide gas is produced when sugar (glucose) reacts with cupric oxide (CuO). This reaction is a decomposition reaction that releases carbon dioxide gas along with water and elemental copper.


Why when you stir sugar dissolves?

When sugar is in water only so much can be dissolved when the maximum amount of sugar is dissolved the water become saturated. When the sugar is placed in the water the water immediately surrounding the sugar dissolves some of it and becomes saturated. Stirring brings unsaturated water into contact with the sugar which can then dissolve more of the sugar.


What state of matter is sugar?

Sugar, or water-soluble crystalline carbohydrate, (molecular compound comprising of carbon, hydrogen, and oxygen), is a solid crystal in its natural state. When sucrose (most common sugar) is mixed with water (a strong solvent), hydrolysis (or decomposition with water) occurs, allowing ions to be split and other molecules to be attracted to each other. Allowing the water in the solution to evaporate slowly causes crystallization of sucrose. When heat is added to solid sucrose, apparent melting occurs. Sucrose decomposition occurs at 367 degrees Fahrenheit with some of the molecules combust to water vapor and carbon dioxide. So, to sum up and concisely answer your question: sucrose changes from solid to liquid (and gas/decomposition) with heat, and transit from solid to liquid by hydrolysis. Sucrose can be crystallized from the hydrolytic compound by slowly allowing the water in the solution to evaporate. To my knowledge, sugar can melt, decompose, and crystallize.


Thermal decomposition and decomposition temperature-is it refer to the same things?

Thermal decomposition is the process by which chemical bonds are broken in the presence of heat. Decomposition temperature is the temperature at which thermal decomposition occurs, which differs for different compounds.

Related Questions

What are examples decomposition?

the examples of decomposition is sugar


How could sugar speed up the decomposition process?

Sugar will speed up the decomposition process because sugar does not melt, it will decompose. Decomposing sugar produces oxygen and water that certain bacteria and microbes love and then they are attracted to the area causing more decomposition in that area.


Why is charring of sugar irreversible?

Yes, it is a chemical reaction because imply the partial thermal decomposition of sugar.


How is heating of sugar and ammonium chloride is different?

The products of the decomposition are different.


Why sugar became black when heated?

Carbon or other black products of the thermal decomposition of sugar are obtained by heating (the process is called thermal dissociation).


What is the major export in cuba that brings in most of the money in cubas economy?

cigars and sugar


What happens when copper carbonate and sugar are heated they are broken down into simpler substances what is the name of this process?

The process is call decomposition.


What is an edible decomposition reaction?

An edible decomposition reaction is a chemical process where complex molecules in food break down into simpler substances, often due to heat or enzymes. This can change the texture, flavor, and nutritional profile of the food. Examples include caramelization of sugar or browning of meat during cooking.


Does sugar bring up your cholesterol?

No. The fat content in foods brings up your cholesterol level.


What is the effect of heat on sugar and salt?

Sodium chloride melts at 801 0C. Sugar melt rapidly and after 180 0C a thermal decomposition reaction occur, the final product being a coke.


How does chloropyll help plants?

it brings in the sunlight to help the plants make a type of sugar called glucose


What happens to the structure of sugar during caramelization?

During caramelization, sugar molecules break down and undergo a series of chemical reactions. The structure of sugar changes as it transforms into various compounds, such as caramel. The process involves the decomposition of sugar molecules, forming new compounds that contribute to the browning and unique flavor of caramel.