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Write a complete, balanced equation for this double displacement reaction between sodium hydroxide and nickel(ii) chloride. (hint: the solid is a compound of ni2+ ions and hydroxide ions.) write the complete molecular equation rather than the net ionic equation.

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Answer: -

Chemical formula of sodium hydroxide = NaOH

Chemical formula of Nickel (II) Chloride = NiCl₂

The product is a solid compound of Ni²⁺ ions and hydroxide ions.

So the compound formed is Nickel (II) Hydroxide.

Chemical formula of Nickel (II) Hydroxide = Ni(OH)₂.

Since a double displacement reaction occurs, the other product should be NaCl.

The balanced chemical molecular equation for the reaction is thus

NiCl₂ + NaOH → Ni(OH)₂ + NaCl.

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