Search results
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.
1 kwi 2017 · By burying the copper wire with plenty of sulphur and then heating the mix, the wire becomes completely submerged in liquid sulphur. The liquid sulphur then gets to react with the copper, and any oxygen that could possibly oxidise the copper would have to diffuse into the liquid sulphur before reaching the copper.
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.
14 kwi 2021 · You can imagine concentrated sulfuric acid as an oxidising agent which supplies [O]. The copper takes the [O] and become CuO while sulfuric acid become sulfur dioxide. Then CuO reacts with remaining sulfuric acid to form CuX2SOX4 C u X 2 S O X 4.
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.
In this experiment, you will prepare copper metal from the reaction of aluminum metal with a solution of copper(II) sulfate (cupric sulfate). From the amounts of the reactants, you will determine which reactant is the limiting reactant, and from this amount, calculate the theoretical yield of copper metal.
We can examine the reactivity of metals by observing their reactions with oxygen, water, steam and whether it displaces other metals in. displacement reactions. This table summarises the...
