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CoCl2 cobaltous chloride, a crystalline compound, is blue when dehydrated and a pale rose color when hydrous. One application is the use of cobaltous chloride in sympathetic ink. When the writing is dried in air it is nearly colorless to do absoption by water in the air. When the ink is warmed it becomes bright blue. All the information above was found on dictionary.die.net/cocl2
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When you reuse a crystal heat pack is that a chemical or physical change?
Reusing a crystal heat pack involves a physical change. When the heat pack is exposed to heat or boiled to reset the crystals, the change is reversible and does not involve a chemical reaction.
What is the specific heat of mixture and how does it affect the overall temperature change in a system?
The specific heat of a mixture is the amount of heat needed to raise the temperature of the mixture by 1 degree Celsius. It affects the overall temperature change in a system because substances with higher specific heat require more heat to raise their temperature, while substances with lower specific heat require less heat. This means that the specific heat of a mixture determines how much heat is needed to change its temperature, impacting the overall temperature change in the system.
What special name is given to a heat change at constant pressure?
A heat change at constant pressure is called enthalpy change, often denoted as ΔH. It represents the change in total heat content of a system during a process occurring at constant pressure.
What can you use to change a liquid into a gas?
You can use heat to change a liquid into a gas through a process called evaporation or boiling.
What state will most likely result if heat is added to a liquid?
It will change into a gas.Adding heat to or removing heat from a system may result in a temperature change and possibly a change of state. A liquid substance needs heat added to it in order to enter a gaseous state. If enough heat is added to a liquid substance it will change into a gas.
Whatcolor does green and bluemake?
YELLOW
Whatcolor is john cenas eyes?
hazel
What is the two states of heat?
The two states of heat are latent heat and sensible heat. Latent heat is the heat absorbed or released during a change of phase, such as melting or boiling. Sensible heat is the heat exchange that causes a change in temperature without a change in phase.
Heat that causes a substance to change form is called?
The heat that causes a substance to change form is called latent heat. This heat is absorbed or released during a phase change, such as melting, freezing, vaporization, or condensation, without causing a change in temperature.
What is the opposite of latent heat?
The opposite of latent heat is sensible heat. Sensible heat is the heat that causes a change in temperature of a substance without a change in phase.
Heat which causes a change in temperature of substanceis called?
Heat which causes a change in temperature of substance is called specific heat.
Is heat conductivity a physical change or chemical change?
The heat conductivity of a substance does not involve changes to its chemistry. Heat conductivity is a physical change and characteristic to a substance.
Sensible heat involves a change in a substance's?
Sensible heat involves a change in a substance's temperature without a change in its phase. It is the heat exchange that causes a change in the temperature of a substance but does not result in a change of state (solid, liquid, gas).
Difference between sensible heat and latent heat?
Sensible heat is heat supplied or taken away and causes an immediate change in temperature without changing the state. While latent heat is heat supplied or taken away and causes a change in state without change in temperature. This difference can be applied to the certain properties of water/steam. This is called the thermodynamics properties of steam.
Heat is eliminated during the process of freezing this loss of heat is considered what kind of change?
This loss of heat is considered a physical change.
What is the difference between specific heat and latent heat, and how do they affect the heat transfer process?
Specific heat refers to the amount of heat required to raise the temperature of a substance by one degree Celsius, while latent heat is the heat absorbed or released during a phase change without a change in temperature. Specific heat affects the temperature change of a substance, while latent heat affects the phase change process. Both specific heat and latent heat play a role in heat transfer processes by determining how much heat is needed to change the temperature or phase of a substance.
Compare endothermic and exothermic?
An endothermic change requires heat, and an exothermic change releases heat.
