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There are two copper oxides, differing in color:
- if it is black powder, then it is copper(II) oxide CuO (cupric, more common, as in the mineral 'tenoriet')
- if it is red powder, then it is copper(I) oxide Cu2O (cuprous oxide, as in mineral the 'cupriet' and it occurs in 'Benedict's test' on reducing sugars)
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoThere are two copper oxides differing in color:
- if it is black powder, then it is copper(II) oxide CuO (cupric, more common, as in the mineral 'tenoriet')
- if it is red powder, then it is copper(I) oxide Cu2O (cuprous oxide, as in mineral the 'cupriet' and it occurs in 'Benedict's test' on reducing sugars)
Wiki User
∙ 12y agoThere are two copper oxides, differing in color:
- if it is black powder, then it is copper(II) oxide CuO (cupric, more common, as in the mineral 'tenoriet')
- if it is red powder, then it is copper(I) oxide Cu2O (cuprous oxide, as in mineral the 'cupriet' and it occurs in 'Benedict's test' on reducing sugars)
Wiki User
∙ 13y agoShallow ocean blue.
Wiki User
∙ 14y agoblack..... or white/grey
Wiki User
∙ 12y agoCopper II oxide is a black powder.
Wiki User
∙ 18y agoblue-green
Wiki User
∙ 15y agois green
Bea Squires
Bronze
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What is the color of precipitate of copper II oxide from copper II hydroxide?
Well if u want the colour of precipitate of Copper II Oxide, that would be black, if its Copper I Oxide then its Red
How are copper and silver different?
Different color, hardness and scarcity. Both tarnish when exposed to oxygen, but silver oxide conducts electricity well, copper oxide does not.
What does magnesium and copper oxide make?
Magnesium + copper oxide --> magnesium oxide + copper
What color change is there when you add black copper oxide to sulfuric acid?
When you add black copper oxide to sulfuric acid, the solution turns blue because copper sulfate was formed and it is a colored compound.
What colour is copper oxide and why?
Copper has two oxides. Copper (I) oxide is red, while Copper (II) oxide is black.
Is copper oxide hydrogen?
No. Copper oxide is just copper and oxygen. It is generally green in color and is often seen as weathering or corrosion on copper. Hydrogen is an element and is not part of copper oxide.
What is the color of precipitate of copper II oxide from copper II hydroxide?
Well if u want the colour of precipitate of Copper II Oxide, that would be black, if its Copper I Oxide then its Red
What happens when oygen and copper react?
You get copper (I) oxide which is red and copper (II) oxide that is black. Copper (II) oxide is more stable. In moist air it also forms copper hydroxide and copper carbonate giving the known green color.
How are copper and silver different?
Different color, hardness and scarcity. Both tarnish when exposed to oxygen, but silver oxide conducts electricity well, copper oxide does not.
What is the name for the compound Cu2O?
Copper (I) Oxide or Cuprous Oxide
What do you get if you mix copper and iron?
It forms copper (I) oxide and copper (II) oxide, mostly the (II) oxide that is black. If you talk about what color is emitted a green/turquoise when heated. If in a oxygen-poor atmosphere it melts without oxidising.
What is the name of Cu2O?
CuO = Cupric Oxide Cupric = Cu2+ and is not Cu The correct answer would be CuO = Copper Monoxide Copper (II) oxide is the name of the compound CuO.
What does magnesium and copper oxide make?
Magnesium + copper oxide --> magnesium oxide + copper
What color change is there when you add black copper oxide to sulfuric acid?
When you add black copper oxide to sulfuric acid, the solution turns blue because copper sulfate was formed and it is a colored compound.
What color is cold copper?
Red. Copper's color only changes significantly when it oxidizes and develops a patina of copper oxide. That's the greenish-black stuff on your really old pennies.
What colour is copper oxide and why?
Copper has two oxides. Copper (I) oxide is red, while Copper (II) oxide is black.
What is the balanced equation for the reaction of sulphuric acid and copper oxide?
This will depend upon which version of copper oxide you have - copper I oxide or copper II oxide. For copper I oxide: H2SO4 + Cu2O --> Cu2SO4 + H2O For copper II oxide: H2SO4 + CuO --> CuSO4 + H2O
