Assertion: nitric acid | /r/HasProperty | prepared in laboratory
Facets:
Source sentences:
text: In laboratory, nitric acid is prepared by heating potassium nitrate with concentrated sulphuric acid at low temperature, potassium hydrogen sulphate and nitric acid are formed, and at a higher temperature, potassium sulphate and nitric add are formed.
text: Nitric acid can be prepared in the laboratory by heating a nitrate salt, such as those mentioned above, with concentrated sulfuric acid; for example, NaNO 3 + H 2