Testing products chemistry
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Testing products chemistry - Leaderboard
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27 questions
| 🇬🇧 | 🇬🇧 |
| Test and result for carbonate | Add dilute acid, effervescence (fizzing), carbon dioxide produced |
| Test and result of chloride | Acidify with dilute nitric acid, then add aqueous silver nitrate White ppt (percipitate) |
| Test and results for bromide | Acidify with dilute nitric acid, then add aqueous silver nitrate Cream ppt |
| Test and results for nitrate | Add aqueous sodium hydroxide, then aluminium foil; warm carefully Ammonia produced |
| Test and results for sulfate | Acidify, then add aqueous barium nitrate White ppt |
| Effect of aqueous sodium hydroxide on Ammonium | Ammonia produced on warming |
| Effect of aqueous sodium hydroxide on calcium | White ppt, insoluble in excess |
| Effect of aqueous sodium hydroxide on Copper (II) | Light blue ppt, insoluble in excess |
| Effect of aqueous sodium hydroxide on Iron (II) | Green ppt, insoluble in excess |
| Effect of aqueous sodium hydroxide on Iron (III) | Red-brown ppt, insoluble in excess |
| Effect of aqueous sodium hydroxide on Zinc | White ppt, soluble in excess, giving a colourless solution |
| Effect of aqueous ammonia on Calcium | No ppt or very slight white ppt |
| Effect of aqueous ammonia on Copper (II) | Light blue ppt, soluble in excess, giving a dark blue solution |
| Effect of aqueous ammonia on Iron (II) | Green ppt, insoluble in excess |
| Effect of aqueous ammonia on Iron (III) | Red-brown ppr, insoluble in excess |
| Effect of aqueous ammonia on Zinc | White ppt, soluble in excess, giving a colourless solution |
| Test and results for ammonia | Turns damp red litmus paper blue |
| Test and results for Carbon dioxide | Turns limewater milky or cloudy |
| Test and results for Chlorine | Bleaches damp litmus paper |
| Test and results for Hydrogen | Squeaky 'pop' with a lighted splint |
| Test and results for oxygen | Relights a glowing splint |
| Flame colour for sodium | Yellow |
| Flame colour for copper (II) | Blue-green |
| Flame colour for calcium? | Orange-red |