What’s on the Testing for Ions poster
A 6-row table: Ion · Test · Result.
Test and positive result.
- Carbonate — Dilute acid — Effervescence, limewater milky
- Sulfate — BaCl₂ with HCl — White precipitate
- Chloride — AgNO₃ with HNO₃ — White precipitate, soluble in dilute NH₃
- Bromide — AgNO₃ — Cream, soluble in concentrated NH₃
- Iodide — AgNO₃ — Yellow, insoluble in NH₃
- Ammonium — NaOH, warm — Pungent gas, damp red litmus turns blue
Test carbonate first: it also gives a precipitate with silver nitrate and would produce a false halide result.
Questions about the Testing for Ions poster
- What’s on the Testing for Ions poster?
- A 6-row table: Ion · Test · Result. Test and positive result. Carbonate — Dilute acid — Effervescence, limewater milky; Sulfate — BaCl₂ with HCl — White precipitate; Chloride — AgNO₃ with HNO₃ — White precipitate, soluble in dilute NH₃; Bromide — AgNO₃ — Cream, soluble in concentrated NH₃; Iodide — AgNO₃ — Yellow, insoluble in NH₃; Ammonium — NaOH, warm — Pungent gas, damp red litmus turns blue. Test carbonate first: it also gives a precipitate with silver nitrate and would produce a false halide result.
- Who is the Testing for Ions poster for?
- Testing for Ions belongs to the Chemistry section rather than to a school year, because physical science is not something one grade owns. Anyone learning inorganic can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Testing for Ions poster?
- Order matters: carbonate before sulfate before halide, or the results confuse each other. A wall chart earns its place by being glanceable from where the work is happening, so Testing for Ions belongs on the wall where that physical science work actually happens, within glancing distance, rather than filed away.
- What other posters go with Testing for Ions?
- Catalysts, Complex Ions and Electrolysis sit alongside Testing for Ions in the Chemistry section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.CatalystsComplex IonsElectrolysis
- Is the Testing for Ions poster free to download and print?
- Yes. Testing for Ions downloads as a free PDF with no account, no email and no watermark, like everything else in the Chemistry section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Testing for Ions poster print at?
- Testing for Ions is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Testing for Ions loses nothing.Printing guide
Related posters
Charts that sit alongside Testing for Ions on the same wall.
Browse every Chemistry poster, or start from the full catalogue.