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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
Wiki User
∙ 15y ago
Wiki User
∙ 12y agoCoCl2 is blue and CoCl2 * 6H2O is dark pink
Wiki User
∙ 9y agoThere are two different colors that CoCI2 can be. It is a pink color when it is hydrated. It is a blue color when it is dehydrated.
Wiki User
∙ 11y agoIt turns a deep blue color.
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When heated gently, the red burgundy CoCl2.6H2O will decomposes into the
violet CoCl2.2H2O then to the blue anhydrous CoCl2.
Wiki User
∙ 13y agoBlue and pink
Wiki User
∙ 11y agoGreen to blue
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What is Q in thermal chemistry?
The Q stands for heat change.
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.
What is the relationship between energy and phase changes?
Adding or removing energy in the form of heat causes the phase change. The amount of heat to be added or removed is called latent heat. It changes the state of a substance without changing it's temperature. There are two types of latent heat. The latent heat of fusion, and the latent heat of vaporization. The latent heat of fusion must be added to change phase from solid to liquid, and removed to change from liquid to solid. The first change is endothermic and the second change is exothermic. The latent heat of vaporization must be added to change phase from liquid to vapor, and removed to change from vapor to liquid. Again the first change is endothermic and the second change is exothermic.
How could you determine if a phase change in endothermic?
By a kinetic heat change.
What is needed for matter to change phase?
Heat is needed for matter to change form eg: Melting, condensation, etc.
Whatcolor does green and bluemake?
YELLOW
Whatcolor is john cenas eyes?
hazel
What is Q in thermal chemistry?
The Q stands for heat change.
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.
Heat which causes a change in temperature of substanceis called?
Heat which causes a change in temperature of substance is called specific heat.
What is the word ladder from heat to fire?
Change heat to head. Change head to herd. Change herd to here. Change here to hire. Change hire to fire.
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.
Choose the correct formula for determining specific heat.?
(change of heat) ____________________ (change of temp)(mass)
Compare endothermic and exothermic?
An endothermic change requires heat, and an exothermic change releases heat.
Is heat a phase change?
No. Heat is a form of energy.
How do solids and liquids change state?
they change their state by absorbing heat known as latent heat. There is no temperature change in a substance she they change their state because the heat is used to break the intermolecular bonds between the molecule.
What is a latent heat energy levels?
Latent heat- the amount of heat required by a system/ substance to change phase. It's also heat absorbed or radiated during a change of phase at a constant temperature and pressure.
