Equation for Calcium Hydroxide Dissolving in Water CaOH2 H2O

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In this video we will describe the equation Ca(OH)2 + H2O and write what happens when Ca(OH)2 is dissolved in water. • Note: Calcium hydroxide is not very soluble in water (15 mg/L at 25°C). So only a small amount would dissolve. • When Ca(OH)2 is dissolved in H2O (water) it will dissociate (dissolve) into Ca +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 Ca(OH)2 (Calcium hydroxide) and H2O sometimes isn’t considered a chemical reaction since it is easy to change the Ca 2+ and OH- back to Ca(OH)2 (just let the H2O evaporate). At the same time, the Ca(OH)2 is a very different substance than Ca 2+ and OH-. • 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: • How to Balance Chemical Equations in ... • More Practice Balancing: • Balancing Chemical Equations Practice... • 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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