In 1950, Chairman Mao Zedong made a speech in support of traditional Chinese medicine (TCM) which was influenced by political necessity. Zedong believed he and the Chinese Communist Party should promote TCM but he did not personally believe in TCM and he did not use it.
Yes. The ammonium ion has a formula of NH4+ and has a positive charge so it is a cation.
The cation is usually written before the anion in ionic compound names. The NH 4 + portion itself is actually a covalently bonded molecule that has a positive charge. That positively charged molecule bonds ionically with bromide ion, Br - .