AtYourService35 AtYourService35

19-12-2018
Chemistry

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how does the ph of hydrochloric acid change when copper oxide is graduallt added to hydrochloric acid until excess?
does it increase? decrease?

Respuesta :

adityanramesh55 adityanramesh55

01-01-2019

Copper does not react with HCl acid, but copper oxide does react. A metal-acid reaction is always a redox reaction. Since copper has a higher reduction potential than hydrogen, it does not react with non-oxidising acids like HCl or dil.H2SO4.

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