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Which of these reactions can be classified as double replacement reactions?

Zn + 2HCl → ZnCl2 + H2

2NaCl + F2 → 2NaF + Cl2

2AlBr3 + 3K2SO4 → 6KBr + Al2(SO4)3

2K + MgBr2 → 2KBr + Mg

Respuesta :

Willchemistry
1) Zn + 2 HCl = ZnCl2 + H2 ( single replacement )

2) 2 NaCl + F2 = 2 NaF + Cl2 ( single replacement )

3) 2 AlBr3 + 3 K2SO4 = 6 KBr + Al2(SO4)3 ( double replacement )

4) 2 K + MgBr2 = 2 KBr + Mg ( single replacement )

Answer 3

hope this helps!

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