cupcake122016
06.02.2021 •
Chemistry
Cucl2(aq)+na2s(aq)→cus(s)+2nacl(aq)
Write the net ionic equation for this reaction.
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Ответ:
Cu^2+ (aq) + S^2- (aq) --> CuS (s)
Explanation:
Break up all the soluble compounds into their constituent ions to get the complete ionic equation, and cross off the ones that appear the same on both sides:
Cu (aq) + 2Cl(aq) + 2Na (aq) + S (aq) --> CuS (s) + 2Na (aq) + 2Cl (aq)
2Cl and 2Na appear on both sides of the arrow, so cross those out to get the net ionic equation.
Ответ:
the structural units are anions and cations bonded together by strong, non-directional ionic bonds