Tests for cations in solution. Cations are positive ions. The cations you need to be able to identify are: copper iron(III) silver iron(II) magnesium.
TESTING FOR CATIONS. Calcium (Ca 2+ ) Test with aqueous sodium hydroxide White ppt. insoluble in excess Test with aqueous ammonia No ppt. or very slight.
1 Electrochemistry. 2 Electricity Movt of electrons Movt of electrons Movt of electrons through wire connecting 2 half-reactions electrochemical cell.
Cells and Batteries Chapter 27. Portable Power A mobile phone, a laptop, an MP3 player and a hearing aid all depend on small portable sources of electricity:
