Identifying substances · Grade 10
Practical test: identify the salt X
ChemAI · Worksheet
NameClassDate
Aim
A different unknown salt every time. Pour samples into the empty tubes, test them and name X.
Before you start: what do you predict will happen? Why?
What you do
| Step | What I observed | |
|---|---|---|
| 1 | Pour 2–3 mL into the empty tubes and test the cation (flame, NaOH) and the anion (AgNO₃, acid, BaCl₂). | |
| 2 | Choose the formula of X below and press Submit. |
Questions
- Write a word or symbol equation for one reaction you observed.
- Explain your most important observation using particles, ions or energy.
- Was your prediction right? What would you change to get a more reliable result?