A compound which is prepared from gypsum has the property of hardening when mixed
with a proper quantity of water. Identify the compound. Write the chemical equation for its
preparation. For what purpose Is it used in hospitals?
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A non-fiction text is based on facts. It is really any text which isn't fiction (a made-up story or poetry). Non-fiction texts come in a huge variety of types. You find them everywhere in life, from the back of the cereal packet at breakfast, to a text book at the library.
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