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The reaction between copper wire and sulfur. By burying the copper wire with excess sulfur and then heating the mix, the wire becomes completely submerged in...
Reaction between copper wire and sulphur. Copper wire completely reacts with the sulphur to form Copper Sulphide - a compound with comepletely different prop...
1 kwi 2017 · In an experiment in school, we heated copper wire (Cu) and yellow sulfur powder together in a crucible. I was wondering why this reaction cannot produce Copper Sulfate. I know it produces Copper Sulfide but I want to know why don't oxygen from the air, sulfur, and copper combine to form copper sulfate.
29 lut 2008 · This demonstration involves some fantastic chemistry and makes an excellent introduction to the use of quantitative calculations to find the formula of a reaction product, copper sulfide. Students will also get the chance to see some of the allotropes of sulfur.
In this experiment students study the behavior of copper in sulfur vapor, a piece of sulfur is heated and a picece of copper is held in the vapor in a test tube. The copper and sulfur combine to a new substance, which can be recognized from the change in color, density and other properties.
Reaction of copper and sulfur. Sulfur comes in a variety of forms and colors. In yellow sulfur powder, it is mostly rings of eight sulfur atoms each. Heating melts the sulfur, which then oxidizes the copper to a 1 + oxidation state, while the sulfur is reduced to 2-: 16 Cu (s) + S 8(l) → 8 Cu 2 S (s)
In this practical, students add powdered or finely-divided metals to a copper(II) sulfate solution and measure the temperature rises. The experiment reinforces ideas about energy changes during reactions, the reactivity series of the metals and the chemical behaviour of metals.
