Please help. Write the equation for the dissolution or the following in water, a group 1 Metal shows as X and a Group 16 element shown here as Y,

X2Y

Question

Please help. Write the equation for the dissolution or the following in water, a group 1 Metal  shows as X  and a Group 16 element shown here as Y, 

X2Y

anonymous · Answer

$$\color{green}{X_2Y_{(s)} \rightarrow 2X^{+}_{(aq)} + Y^{2-}_{(aq)}}$$

anonymous · Answer

I don't get it, wouldn't H2O be a part of the equation, since it's about the dissolution of the compound in water?

anonymous · Answer

The (aq) recognizes that the dissolved ions are in water (aqueous), so water does not need to be included in the equation. This is the same for writing the dissociation expression for any soluble salt.

anonymous · Answer

Oh, I see. Thank you!