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Because it was first found in Paris and it is also used as a plaster
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∙ 12y ago
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Why is calcium sulphate hemihydrate called plaster of Paris?
http://answers.yahoo.com/question/index?qid=20080503055903AA9ufs3 because it is firstly prepared and used in Paris.
What is the chemical formula for calcium hydrogen sulfate?
Calcium hydrogen sulfate is a mixture of each of the following elements: calcium hydrogen sulfur Sulfate is just a fancy word for sulfur which means these elements have gone through a chemical change to become something new.
What compound is formed with calcium and oxygen?
i believe my calculations with amnothisewis can card your difficulty with thinking up a scietific answer..... none but electrons!!!!1 Calcuim Carbonate CaCO3 Calcuim Sulphate CaSO4 Calcium Oxide CaO Calcium Fluride CaF2 Calcium Chloride CaCl2 Calcium Bromide CaBr2 Calcium Iodide CaI2 Calcium Cyanide CaCN And plenty more just connect Calcium with any negetive ion you can think off. Remember Calcium has a valance of +2
Why is copper sulphate called a salt?
As it forms when an acid reacts with a base.
Is there reaction between aluminum sulfate and calcium?
Yes! both salts are water soluble, however Calcium forms a precipitate due to being insoluble when it's anion is switched with Si04[-] I'm sure it is classified as a double replacement reaction. CaCl2+Na2Si03->CaSi03+2NaCl
Why is calcium sulphate hemihydrate called plaster of Paris?
http://answers.yahoo.com/question/index?qid=20080503055903AA9ufs3 because it is firstly prepared and used in Paris.
Is plaster a homogeneous mixture or heterogeneous mixture explain?
Plaster is neither a homogeneous nor heterogeneous mixture. Plaster (gypsum) is a compound, Plaster of Paris / Calcium Sulfate or also called Gypsum is composed of calcium sulphate (CaSO4) and water (H2O). Its chemical name is calcium sulphate dihydrate (CaSO4. 2H2O).
Which chemical is called plaster pf paries?
CaSO4 1/2 H2O. Calcium sulfate hemihydrate. This reacts exothermically, i.e gives off heat, when it reacts with water to form CaSO4 2 H2O, Calcium sulfate dihyrate also known as gypum, a white solid.
What mineral is used to make plaster of paris?
It is made from a soft rock called gypsum.The gypsum is heated to about 1500C to remove its H2O (water) content. It becomes a dry powder, with the chemical name gympsum hemihydrate or, more accurately calcium sulfate hemihydrate. CaSO4.1/2H2O
What are the chemicals in chalk called?
calcium sulphate
What will happen if heating is not controlled while preparing plaster of Paris?
It may be noted that the temperature should be controlled carefully. It should not be allowed to rise above 152°C (425K) because, if whole of the water is lost then anhydrous calcium sulphate is produced, which is called dead burnt plaster and it does not have the properties of Plaster of Paris.
What is dead burnt plaster and how is it formed?
Ahnydrous clcium sulphate is called dead burnt plaster of Paris
How plaster of Paris is related with Paris?
Gypsum The gypsum is heated to about 1500C to remove its H2O (water) content. It becomes a dry powder, with the chemical name gympsum hemihydrate or, more accurately calcium sulfate hemihydrate. CaSO4.1/2H2O
What is the synonym of calcium sulfate used in the preparation of plaster of Paris?
im not sure but as far as i remember it is called gypsum and yeah its formula is caso4. 1/2h2o
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.
Why is calcium hydroxide used in food?
It's used "for processing water (for alcoholic and soft drinks)" -http://en.wikipedia.org/wiki/Calcium_hydroxide
What is the chemical formula for calcium hydrogen sulfate?
Calcium hydrogen sulfate is a mixture of each of the following elements: calcium hydrogen sulfur Sulfate is just a fancy word for sulfur which means these elements have gone through a chemical change to become something new.
