Home >
Community >
Is sodium hydroxide + copper sulfate a physical or chemical change?
Upvote
13
Downvote
+ Chemical reactions
+ Sodium hydroxide
+ Sodium
+ Chemistry
Posted by
Michael Jacobs
Is sodium hydroxide + copper sulfate a physical or chemical change?
Both, really. You have a clear colourless solution added to a lovely blue solution, and you get a blue precipitate. This settles out under gravity to give a blue sediment and a colourless supernatant. Chemistry starts the transformation, but physics brings it to stability.
Both, really. You have a clear colourless solution added to a lovely blue solution, and you get a blue precipitate. This settles out under gravity to give a blue sediment and a colourless supernatant. Chemistry starts the transformation, but physics brings it to stability.
Yes. Its a chemical change. Because when sodium hydroxide solution is added to copper sulphate solution blue coloured ppt out of copper hydroxide. But by adding excess sodium hydroxide solution colour remains unchanged.
Yes. Its a chemical change. Because when sodium hydroxide solution is added to copper sulphate solution blue coloured ppt out of copper hydroxide. But by adding excess sodium hydroxide solution colour remains unchanged.
Both, really. You have a clear colourless solution added to a lovely blue solution, and you get a blue precipitate. This settles out under gravity to give a blue sediment and a colourless supernatant. Chemistry starts the transformation, but physics brings it to stability.
Both, really. You have a clear colourless solution added to a lovely blue solution, and you get a blue precipitate. This settles out under gravity to give a blue sediment and a colourless supernatant. Chemistry starts the transformation, but physics brings it to stability.
More
VOTE
Yes. Its a chemical change. Because when sodium hydroxide solution is added to copper sulphate solution blue coloured ppt out of copper hydroxide. But by adding excess sodium hydroxide solution colour remains unchanged.
CuSO4(aq) + NaOH(aq) = Cu(OH)2(s) + Na2SO4(aq)
Cu(OH)2(s) + NaOH(aq) = no. Change
Yes. Its a chemical change. Because when sodium hydroxide solution is added to copper sulphate solution blue coloured ppt out of copper hydroxide. But by adding excess sodium hydroxide solution colour remains unchanged.
CuSO4(aq) + NaOH(aq) = Cu(OH)2(s) + Na2SO4(aq)
Cu(OH)2(s) + NaOH(aq) = no. Change
More
VOTE