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CuO + 2HCl --> CuCl2 + H2O
This equation is a double displacement; because Cu (Copper) has pushed out O (oxygen), so that Cu can be with Cl (chlorine). Also, H (Hydrogen) has pushed out Cl to be with O. Both elements have pushed out their partner, therefore a double displacement.
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Earn +20 ptsQ: Is CuO plus 2HCl yields CuCl2 plus H2O a double replacement?
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