Answer:
This is because of the solubility of the reacting metal salts.
Explanation:
The use of solubility of salts influences the formation of precipitates. Most precipitation reactions occur as a result of the replacement reactions or double placement reactions. A double replacement reaction occurs when two ionic reactants dissociate and bond with respective anion and cation of the other reactant. This is simply a switch over reaction.
A double replacement reaction occurs when a chemical reaction occurs and one of the products formed is insoluble.
Here is an example:
Both reactants are acqeous and the product is solid.
Answer:
In Cl, the 2 is a subscript because it indicates there are 2 of the same elements. The Lewis structure would display it as Cl-Cl.
On the other hand, a superscript would indicate a specific charge.
All subscripts show the amount of the specific element there is.
An example would be O or N
, they both show that there are 2 of the same elements.
If the subscript is outside a parenthesis such as it indicates there are 2
molecules.