You have learned a lot about ions recently. How much do you remember from Friday’s lesson?
1. Reacting sodium with chlorine: electron transfer and turning atoms into ions
Electrolysis of copper chloride: turning ions back into atoms
Some questions for experts.
We talked briefly about oxidising agents. When elements burn in oxygen we say they have become oxidised.
Magnesium burning in air.
2Mg + O2 —-> 2MgO
We say that magnesium has been oxidised to magnesium oxide
Magnesium also burns in chlorine
2Mg + CL2 —-> MgCL2
Why do we say that magnesium has been oxidised to magnesium chloride?
………and some links to related chemistry.