In this video we will describe the equation MgCl2 + H2O and write what happens when MgCl2 is dissolved in water.

When MgCl2 is dissolved in H2O (water) it will dissociate (dissolve) into Mg 2+ and Cl- ions. To show that they are dissolved in water we can write (aq) after each. The (aq) shows that they are aqueous – dissolved in water.

The equation for MgCl2 (Magnesium chloride) and H2O sometimes isn’t considered a chemical reaction since it is easy to change the Mg 2+ and Cl- back to MgCl2 (just let the H2O evaporate). At the same time, the MgCl2 is a very different substance than Mg2+ and 2Cl-.

If you need to know how to balance chemical reactions, see my complete tutorial on balancing all types of chemical equations:

Balancing Equations in 5 Easy Steps: [ Ссылка ]

More Practice Balancing: [ Ссылка ]

Drawing/writing done in InkScape. Screen capture done with Camtasia Studio 4.0. Done on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo).

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