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05-03-2020
Chemistry

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When the molecular reaction between sodium silicate and copper(II) nitrite is balanced correctly the stoichiometric coefficient for sodium nitrite is __

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05-03-2020

Answer:

The stoichiometric coefficient for sodium nitrite is 2

Explanation:

We determine the reactants:

Na₂SiO₃

Cu(NO₂)₂

We dissociate them:

Na₂SiO₃ → 2Na⁺ + SiO₃⁻²

Cu(NO₂)₂ → Cu²⁺ + 2NO₂⁻

We bond the ions for the new salts

2Na⁺ + SiO₃⁻² + Cu²⁺ + 2NO₂⁻ → 2NaNO₂ + CuSiO₃

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