level: Level 1 of Need to know P1
Questions and Answers List
level questions: Level 1 of Need to know P1
| Question | Answer |
|---|---|
| precipitate with NaOH Cu2+ to CuOH2 | BLUE TO BLUE |
| precipitate with NaOH FE2+ to FEOH2 | PALE GREEN TO GREEN |
| precipitate with NaOH Fe3+ to FeOH3 | pale yellow to orange/brown |
| precipitate with NaOH MN2+ to MnOH2 pretty to ugly | pink to brown |
| precipitate with NaOH Cr3+ to CrOH3 | violet to grey/green |
| ionic boding | metal and non metal square |
| covalent | non metals |
| higher ka | stronger acid |
| ph= | -logH+ |
| STRONG BASE H+= | Kw/ OH |
| WEAK ACID H+ | square root Ka x HA |
| h+ for buffer | kax acid over salt |
| Half equations | balance H+ , Balance H20 balance e lectrons balance AlKALINE BY OH- |