2024年9月24日 · Explore electrolysis and charge transfer for IGCSE Chemistry. Learn about ionic compounds decomposing with electricity and the reactions at the electrodes.

2024年10月13日 · Explore the electrolysis of aqueous solutions in IGCSE Chemistry. Learn about ions, products formed at electrodes and how concentration affects these products.

The electrochemical series is a list that provides insights into the behavior of chemical elements and their compounds in various chemical reactions. It ranks elements based on their standard electrode potentials, correlating with their tendency to gain or lose electrons.

It won't be easy to remove electrons to make gold ions, but it will be easy to convert gold ions back into gold metal again. The electrochemical series can be thought of as an extended, and slightly modified, reactivity series.

2024年1月3日 · Electrochemical Series is defined as the arrangement of the electrode with the electrode half-reaction in order of decreasing standard potential. Generally speaking, elements that are more likely to lose electrons to their solution are referred to as electropositive.

The further apart the metals are in the reactivity series, the bigger the voltage of the cell. Example Of A Simple Electric Cell Since zinc is more reactive than copper, oxidation will occur at the zinc electrode.

In all cases the metals present in the solutions, calcium, potassium and lithium are all above hydrogen (from the water) in the reactivity series. Therefore hydrogen ions are discharged (or reduced in this case) to release hydrogen gas.

The reactivity series and electrolysis. In order to predict the outcome of an electrolysis experiment, you need to know the reactivity series, and in particular the position of hydrogen in the series:

It is important that learners have been introduced to the reactivity series of metals, including carbon and hydrogen. See our video on the Reactivity series of metals, with supporting resources, rsc.li/3baSTPO.

2 天之前 · In this explainer, we will learn how to predict the products of electrolysis of aqueous salt solutions using the reactivity series. Some chemicals are so stable that it is very difficult to find chemicals that will break them up.