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Yes, it is because when you melt it, it becomes soft and slimy, and when you freeze it, it will go back to it
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∙ 12y ago
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Is water added to plaster of Paris reversible or irreversible?
it is an irreversible change
How do you separate plaster of Paris from bulk of water?
No
What is the substance uses for plaster of Paris?
glue flour water
Is sand and water a reversible change?
no it is irreversible change
Why does plaster of Paris get hot?
Plaster of Paris is a classic exothermic reaction. The gypsum when heated to 150 degrees dehydrates with 75% of water content escaping as vapor. When water is reintroduced it resets the crystal lattice and gives off heat.
Is water added to plaster of Paris reversible or irreversible?
it is an irreversible change
How does plaster of Paris dissolve?
in water. in water.
How do you separate plaster of Paris from bulk of water?
No
How does plaster of Paris kill rats?
Plaster of Paris sets when it comes into contact with water. If a rat eats it, and drinks water it will activate and harden in the rats stomach.
Is mixing oil and water a reversible or irreversible change?
reversible
What is the Plaster of Paris used for?
glue flour water
What happens when plaster of Paris mix with water?
Plaster of Paris is formed from gypsum. The gypsum is heated to 150 decrees Celsius and becomes a dry powder. When this powder is mixed with water it re-forms into a paste and eventually hardens into a solid. The powder mixed with water is held together by hydrogen bonds in the water molecules. This is a week bond that is easily broken. When Plaster of Paris and water are mixed together they undergo a chemical change. The particles rearrange to make a completely new substance. When plaster of Paris and water are mixed together the mixture becomes warm releasing energy in the form of heat therefore undergoing a chemical change.
What is the substance uses for plaster of Paris?
glue flour water
For kids art molds what ratio of plaster of Paris to water?
Use a ratio of 2 cups of Plaster of Paris to 1 cup of water. Use immediately once mixed is smooth.
Can you consider a chemical change dissolving salt in a water?
no because it is reversible. If you dissolve out the water you are left with NaCl. A change that is reversible is a physical change.
Dissolving sugar in water is an example of a physical change.?
Reversible
Is boiling water to make tea a reversible change or a chemical reaction?
it's a reversible change
