Question

write an example of double displacement reaction with an evolution of gas.......the text book example is for precipitate formation....dont answer from seeing the book....I want an example with evolution of gass......​

Answer 1

Answer:

Na2so4+Bacl2----------Baso4+2Nacl

Answer 2

Answer:

u can write this one

Explanation:

H2SO4 + 2KOH ---> K2SO4 + 2H2O

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