Write the formula unit equation for this reaction occurring in water: potassium sulfate and barium chloride are mixed to form potassium chloride and barium sulfate.

1. k2so4 (s) + bacl2 (s) → 2 kcl (aq) + baso4 (s)
2. k2so4 (aq) + bacl2 (aq) → 2 kcl (aq) + baso4 (s)
3. 2 k3so4 (aq) + 3 bacl2 (aq) → 6 kcl (aq) + 2 ba3(so4)2 (s)

option 2.

K2SO4 (aq) + BaCl2 (aq) → 2 KCl (aq) + BaSO4 (s)

Explanation:

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

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