459410
Descrição
FlashCards por James Lamming, atualizado more than 1 year ago
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Criado por James Lamming
quase 11 anos atrás
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| Questão | Responda |
| Lithium | Li+ ions turn flame crimson. (Kurt Cobain, Lithium, crime -> crimson |
| Sodium | Na+ turns flame orange/yellow. Yellow lemonade is SODa. |
| Potassium | K+ ions turns flame lilacK |
| Calcium | Ca2+ ions turn flame brick red. Builder drinking milk. |
| Ammonium (NH4+) NH4+ + OH- -> NH3 + H2O | Add NaOH solution and warm, resulting gas will turn DAMP red litmus blue |
| Copper (II) Cu(II) ion (aq) + 2 OH- ions (aq) -> Cu(OH)2 (s) | Add NaOH solution. Pale blue precipitate of Cu(OH)2 forms. |
| Iron (II) | Add NaOH solution, green Iron (II) hydroxide precipitates. |
| Iron (III) | Add sodium hydroxide, rusty brown Iron (III) hydroxide precipitates. |
| Cl- | Add nitric acid, then silver nitrate. WHITE AgCl precipitates, soluble in dilute ammonia. |
| Br- | Add nitric acid then silver (I) nitrate sol., cream AgBr precipitates, sol. in conc. ammonia |
| I- | Add nitric acid, add silver (I) nitrate, yellow AgI precipitates, insol. in Ammonia |
| Sulfate | Add HCl, then BaCl2, white BaSO4 precipitates. |
| Carbonate CO3 ion + 2H+ ion ->CO2 + H2O | Add HCl. Bubble resulting gas through limewater, which will turn cloudy. |
| Ammonia | Turns damp red litmus blue |
| CO2 | Turns limewater cloudy. Ca(OH)2 + CO2 -> CaCO3 + H2O |
| Chlorine gas | damp blue litmus turns red then is bleached white |
| Hydrogen 2H2 + O2 -> 2H2O | Ignites with a squeaky pop. |
| Water (1) | Pass vapour over anhydrous copper sulfate crystals. (WHITE TO BLUE) |
| Water (2) | Put water on anydrous cobalt chloride paper. Turns blue to pink. |
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