Sunday 13 February 2022

Halide tests

Testing for the halides, first was distilled water no halide, then surprised students, tap water with chlorine, to kill off the bugs, then chloride bromide and iodide



No comments:

Post a Comment

A level Math

  Students working out just what formulae are and are not in the exam sheet. Then, the panic can begin to memorise the formulae that are not...