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.
Group 4 Cations of this group do not react with the reagents of Groups 1, 2, and 3. They form precipitates with ammonium carbonate in the presence of ammonium chloride in neutral medium. Cations of this group are calcium(II), strontium(II), and barium(II). Group 5 Common cations, which do not react with reagents of the previous groups,