| A | B |
|---|
| Formula of calcium ion is | Ca(2+) |
| Formula of barium ion is | Ba(2+) |
| sodium ions are shown | Na(+) |
| strontium ions are shown | Sr(2+) |
| Aluminium ions are shown | Al(3+) |
| 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 | SO4(2-) |
| Carbonate ions are | CO3(2-) |
| Hydrogen carbonate ions are | HCO3(-) |
| 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 AgNO(3) & 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 CO3(2-) and it | fizzes |
| Acid & CO3(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 SO4(2-)> | a white ppt forms |
| White ppt when barium chloride with a SO4(2-) 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 |
| CO3(2-)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 halide form a ppt but | they do not dissolve when HNO3 is added |
| Add NaOH soln to Ca(2+) and you get a | white ppt |
| Add NaOH soln to Mg(2+) and you get a | white ppt |
| Add NaOH soln to Sr(2+) and you get a | white ppt |
| Add NaOH soln to K(+) and you get a | no ppt |
| Acid & HCO3(-)it fizzes because | Carbon dioxide is given off |
| 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 |
| Acid & SO3(2-) and warm; you get | sulphur dioxide given off |
| you can show sulphur dioxide is formed because it | turns damp potassium dichromate paper orange to green |
| Add MgSO4 solution to a carbonate in solution and you get | a white ppt |
| Add MgSO4 solution to a hydrogen carbonate in solution and you get | no ppt but you will if it boiled |
| AgNO3 & HNO3 gives a white ppt with | a chloride |
| AgNO3 + HNO3 gives a cream ppt with | a bromide |
| AgNO3 + HNO3 gives a yellow ppt | an iodide |
| BaCl2 gives a white ppt with a sulphite but ... | It dissolves in HCl giving SO2 |
| CO3(2-) gives a ppt with AgNO3 soln | but it dissolves in HNO3 |
| If you add NH3(aq) to silver chloride | it dissolves forming a colourless solution |
| If you add NH3(aq) to AgI | it does not dissolve |
| When testing with BaCl2 for a sulphate you use HCl not H2SO4 because | H2SO4 is a sulphate & gives a white ppt on its own with BaCl2 |
| Flame colour of Na(+) is | yellow |
| Flame colour of K(+) is | lilac |
| Flame colour of Li(+) is | crimson |
| Flame colour of Ba(2+) is | green |
| Flame colour of Mg(2+) is | no flame colour |
| Flame colour of Ca(2+) is | orange red (sometimes called brick red) |
| Flame colour of Sr(2+) is | red |
