Copper sulfide | Exhibition chemistry - RSC Education
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. …
Heating copper wire and sulfur powder - Chemistry Stack Exchange
2017年4月1日 · By burying the copper wire with plenty of sulfur and then heating the mix, the wire becomes completely submerged in liquid sulfur. The liquid sulfur then gets to react with the …
React with Copper - American Chemical Society
It reacts with oxygen in the air to form brown-black copper oxides, with CO 2 dissolved in rainwater to form green, and sulfur compounds to form copper sulfides. Copper left outside, …
Reacting copper (II) oxide with sulfuric acid - RSC Education
2024年11月3日 · In this experiment, students react an insoluble metal oxide with a dilute acid to form a soluble salt. Preparing a soluble salt offers a safer method for this experiment using a …
React copper metal with sulfur • Place about half the sulfur powder in the crucible. • Add one piece of copper and cover it with the remaining sulfur. • Cover the crucible with crucible lid and …
A reversible reaction of hydrated copper (II) sulfate | Experiment ...
Students remove the water of crystallisation from hydrated copper(II) sulfate by heating. Condensing the vapour produced in a second test tube collects the water. The white …
formula of a sulfide of copper, 1.956 g of copper wire . heated with a large excess of elemental sulfur. An excess of sulfur ensur. that all the copper reacts. Unrea. More important is the molar …
In this experiment you will observe a sequence of copper reactions. The sequence begins with copper metal and ends with copper metal, so it is called a cycle of copper reactions. …
Reaction of copper and sulphur - PHYWE
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 …
Find the key ideas from the text, and their meaning in the context of the experiment. Organise below. a. Title (purpose) Part 2. Analyse the text again, then synthesise answers to these two …