Question

By observing the correlation in the first part, complete the second pair: CuCl2 + 2k1 >>>> +Cul2+2KCl : Double displacement :: Zn+HCl>>>>>>ZnCl2+ H₂ :​

Answer 1

Answer:

Zn+2HCl >>>>ZnCl2 + H2

Explanation:

H2 has 2 hydrogen & ZnCl2 has 2 chloride ....so In the left side, there should be also 2 H and 2Cl ....that means there should be 2HCl....