| A | B |
|---|
| Formula of calcium ion is | Ca2+ |
| Formula of copper ion is | Cu2+ |
| Iron III ions are shown | Fe3+ |
| Iron II ions are shown | Fe2+ |
| Aluminium ions are shown | Al3+ |
| Ammonium ions are shown | NH4+ |
| Potassium ions are shown | K+ |
| Sodium ions are shown | Na+ |
| Hydroxide ions are | OH- |
| Chloride ions are | Cl- |
| Bromide ions are | Br- |
| Iodide ions are | I- |
| Sulphate ions are | SO42- |
| Carbonate ions are | CO32- |
| Barium ions are | Ba2+ |
| Silver ions are | Ag+ |
| Silver nitrate is used as a test for | halide ions (chloride, bromide & iodide) |
| With AgNO3 & Cl- you get | a white ppt |
| With AgNO3 & Br- you get | a cream ppt |
| With AgNO3 & I- you get | a yellow ppt |
| The white ppt you get with AgNO3 & Cl- | is called silver chloride |
| The cream ppt you get with AgNO3 & Cl- | is called silver bromide |
| The yellow ppt you get with AgNO3 & I- | is called silver iodide |
| acids contain ....ions | H+ |
| Add an acid to a CO32- and it | fizzes |
| Acid & CO32-(2-) it fizzes because | carbon dioxide is given off |
| A test for carbon dioxide | it turns limewater milky (a white ppt) |
| Barium chloride with a SO42- | a white ppt forms |
| White ppt when barium chloride with a SO42- is... | barium sulphate |
| When you add BaCl2 you must also add | dilute HCl |
| A sulphate forms a white ppt with BaCl2 but | it does not dissolve when HCl is added |
| CO32-also forms a white ppt with BaCl2 but | it DISSOLVES when HCl is added |
| When you add AgNO3 solution you should always add | dilute HNO3 as well |
| With AgNO3 solution halides form a ppt but | it does not dissolve when HNO3 is added |
| Add NaOH soln to Fe3+ and you get a | brown ppt |
| Add NaOH soln to Fe2+ and you get a | green ppt |
| Add NaOH soln to Cu2+ and you get a | blue ppt |
| Add NaOH soln to Ca2+ and you get a | white ppt |
| Add NaOH soln to Al3+ and you get a | a white ppt & it dissolves in excees NaOH |
| Add NaOH to NH4+ and | there's no ppt but on warming it gives an alkaline gas |
| The alkaline gas you get when you add NaOH to NH4+ and warm is called | ammonia |
| NaOH soln gives a blue ppt with | Cu2+ |
| NaOH soln gives a green ppt with | Fe2+ |
| NaOH soln gives a brown ppt with | Fe3+ |
| NaOH soln gives no ppt with | NH4+ and NH3 on heating |
| AgNO3 & Cl- + HNO3 gives a white ppt with | Cl- |
| AgNO3 + HNO3 gives a cream ppt with | Br- |
| AgNO3 + HNO3 gives a yellow ppt | I- |
| an acid fizzes when added to a | CO32- |
| CO32- gives a ppt with AgNO3 soln | but it dissolves in HNO3 |
