Question

ca(hso3) 2+hno3 ----->ca(no3)2+h2o+so2
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Answer 1

Answer:

Double displacement reaction or precipitation reaction

hope this answer may help you....

Answer 2

Answer:

both double displacement reaction and precipitation reaction

Explanation:

where we got precipitate and is is. precipitation reaction and

where two compounds react, and positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products , hence double displacement also takes place