16.
Identify the compound of calcium which is used for supporting fractured bones. With the help of
chemical equation show how it is prepared and what special precautions should be taken during the
storing of this compound.
OR
'Sweet tooth may lead to tooth decay. Explain why? What is the role of tooth paste in preventing
cavities?
Answers
Answered by
1
Answer:POP is used to support fractured bones which have formula CaSO4.1/2H2O
It is prepared by heating gypsum salt the precaution is that it should be heated at temp 100°C or gypsum will convert into unhydrous calcium sulfate
Sweet tooth led to tooth decay as the bacterias fed on the sweet and then release acid and pH of tooth becomes less than 5.5 and the tooth decay
Toothpastes are basic in nature so they neutralise the acid released
Please mark brainliest
Answered by
2
Answer:
Chemical formula of Plaster of Paris.
CaSO₄. 1/2 H₂O
Preparation :
On heating Gypsum at 373 K Plaster of Paris is formed.
CaSO₄. 2 H₂O ⇒ CaSO₄. 1/2 H₂O + 3/2 H₂O
Special precaution :
We shouldn't heat gypsum above 373 K else it will not form.
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