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Is cornstarch dissolving in water a endothermic or exothermic reaction?
When cornstarch dissolves in water, it undergoes a process that is generally considered endothermic. This means that it absorbs heat from the surroundings, which can lead to a slight cooling effect in the mixture. The interaction between cornstarch molecules and water requires energy, resulting in this heat absorption. Therefore, the dissolution of cornstarch in water is characterized as endothermic.
When solid lead (II) chloride dissolves only in hot water considered as endothermic or exothermic?
The dissolution of solid lead (II) chloride in hot water is considered an endothermic process. This is because it absorbs heat from the surrounding water to break the ionic bonds in the solid and allow the ions to disperse in the solution. As a result, the temperature of the water may decrease slightly during the dissolution.
What is the process that involves giving out heat to the surroundings?
The process of giving out heat to the surroundings is known as exothermic reaction or exothermic process. During this process, energy is released in the form of heat, often resulting from chemical reactions, such as combustion or respiration. This release can lead to an increase in the temperature of the surrounding environment. In contrast, endothermic processes absorb heat from their surroundings.
Why mix molten potassium and sugar?
Mixing molten potassium and sugar can result in a highly exothermic reaction due to the high reactivity of potassium with oxygen. This reaction can release a large amount of heat and result in a rapid combustion of the sugar. It is extremely dangerous and should not be attempted as it can lead to fires, explosions, and serious injuries.
Can heat cause some rocks to melt and change into new rocks?
Yes, heat can cause rocks to melt and form new rocks through the process of melting, cooling, and solidifying. This can lead to the formation of igneous rocks from both existing rocks and molten rock material.
Is reducing lead oxide with carbon to produce lead endothermic or Exothermic?
The reduction of lead oxide with carbon to produce lead is an exothermic reaction. This is because energy is released in the form of heat during the formation of lead from lead oxide and carbon.
Is the reaction between potassium permanganate and glycerin a endothermic or exothermic reaction?
The reaction between potassium permanganate and glycerin is exothermic, which means it releases heat as it proceeds. This reaction is highly exothermic and can lead to spontaneous combustion in some cases.
When solid lead chloride dissolves in hot water is this endothermic or exothermic?
The dissolution of solid lead chloride in hot water is an endothermic process because energy is absorbed to break the bonds holding the solid together. This energy is needed for the solid to transition into freely moving ions in solution.
Is cornstarch dissolving in water a endothermic or exothermic reaction?
When cornstarch dissolves in water, it undergoes a process that is generally considered endothermic. This means that it absorbs heat from the surroundings, which can lead to a slight cooling effect in the mixture. The interaction between cornstarch molecules and water requires energy, resulting in this heat absorption. Therefore, the dissolution of cornstarch in water is characterized as endothermic.
When solid lead (II) chloride dissolves only in hot water considered as endothermic or exothermic?
The dissolution of solid lead (II) chloride in hot water is considered an endothermic process. This is because it absorbs heat from the surrounding water to break the ionic bonds in the solid and allow the ions to disperse in the solution. As a result, the temperature of the water may decrease slightly during the dissolution.
Why can molten lead a conduct electricity?
Molten lead can conduct electricity because in the molten state, the lead atoms are free to move and carry electric charge. This allows electric current to flow through the molten lead, making it a conductor of electricity.
What is the process that involves giving out heat to the surroundings?
The process of giving out heat to the surroundings is known as exothermic reaction or exothermic process. During this process, energy is released in the form of heat, often resulting from chemical reactions, such as combustion or respiration. This release can lead to an increase in the temperature of the surrounding environment. In contrast, endothermic processes absorb heat from their surroundings.
Is molten lead a liquid or solid?
By definition, if something is "molten" it is a liquid.
Can lead burn through leather?
I presume you mean molten lead. It would depend on how thick the leather is and how long the molten lead is in contact, but it could happen.
Why mix molten potassium and sugar?
Mixing molten potassium and sugar can result in a highly exothermic reaction due to the high reactivity of potassium with oxygen. This reaction can release a large amount of heat and result in a rapid combustion of the sugar. It is extremely dangerous and should not be attempted as it can lead to fires, explosions, and serious injuries.
Molten sodium iodide?
cell emf for electrolysis of molten lead (II) iodide
Is molten lead a conductor or insulator?
Molten lead is a good conductor of electricity because the atoms are free to move and carry electric charge.
