Precipitation reactions happen when two substances that can dissolve in water come together and form a solid that doesn’t dissolve. It can be tricky to figure out what will happen in these reactions.

Challenges:

• The rules about what dissolves and what doesn’t can be confusing.
• It’s important to measure everything correctly to make sure the reactions work.

Ways to Help:

• Get to know the solubility rules step by step.
• Try drawing out the reaction equations to see what’s happening.

Understanding this is really important, especially in experiments where making a solid is a big part of the process.