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Copper takes on a brownish color, I've used copper dust in chem that was greenish-blue, that's a pretty popular color. when copper is burnt it produces a green flame, I've also used copper that was gray and greenish-blue in non manufactured copper things I'd look for a bluish green color.
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Can copper be extracted from its compounds using carbon?
yes
What is the formulas for the compounds called copper1 chloride and copper 2 chloride?
Copper I Chloride is CuCl and Copper II Chloride CuCl2
What metals or metal compounds will not react with copper sulfate?
any metals that are below copper in the reactivity series
Which compound is used in preparation of green fire?
Examples: compounds of copper, boron, barium
Why does copper sulphate turn green when iron is added?
When iron is added to copper sulfate, the sulfate ionbreaks away from copper, and combines with iron to form Ferrous Sulfate, which is green in color. It is a single displacement reaction =CuSO4 + Fe ----> FeSO4 + Cu
Why are compounds of zinc white but compounds of copper have color?
Zinc has a full complement of d electrons , copper does not.
What is the typical colour of magnesium compounds?
its in Silver color
What color is emitted when copper atoms are heated?
Copper, monovalent: blue Copper, divalent, in halides: blue-green Copper, divalent, in non-halide compounds: green
Which of the tested elements give the spectacular and vared color of fireworks?
Strontium compounds provide red color (and is often found in road flares as well). Calcium compounds produce orange. Charcoal (carbon) or a mixture of iron and carbon provide the gold/yellow color. Sodium compounds produce a yellow color. Barium compounds produce green. Copper compounds produce blue. A mixture of strontium (red) compounds and copper (blue) compounds produces purple. Silver/white can be produced by: aluminum, magnesium, titanium, or antimony (III) sulfide.
Is copper nonreactive with other substances?
No. Copper forms a number of chemical compounds. If you want a metal about that color, gold is very nearly non-reactive.
How can you be sure that the oxides of copper are different from compounds?
Oxides of copper are compounds !
What minerals are in the firework color bright green?
copper (II) compounds - without halogens, boron, thallium
How did Statue of Liberty tuned green?
The outside skin of the Statue of Liberty is made of copper. When it was first made it was the color of a penny. Over time the copper reacts with the water in the air to formal compounds that are green-blue in color.
Which is more stable zinc II compounds or copper II compounds?
copper II compounds are more stable because it is hard
How do elements occur?
As elements or as compounds For example, copper occurs in its elemntal form (native copper) and as various compounds (copper sulphide, copper sulphate etc)
Which two compounds are in copper oxide?
copper and oxygen
How do you get pink gold?
Pink gold is an alloy of only gold and copper, which gives the metal a pinkish color. A typical combination is 75% gold and 25% copper (18 karat).
