=. soluble. ammonium phosphate, (NH 4) 3 PO 4, is soluble. +. any other cation. =. low solubility (insoluble). magnesium carbonate, MgCO 3, is insoluble. 1  All compounds of the ammonium ion (NH 4 +), and of Alkali metal (Group IA) cations, are soluble. 2  All nitrates and acetates (ethanoates) are soluble. 3  All chlorides, bromides and iodides are soluble EXCEPT those of silver, lead and mercury(I).
The period of the Warring States (Zhanguo or Chan-Kuo) refers to the era of about 475 BCE to 221 BCE. It commenced at a time of when the numerous petty city-state kingdoms of the Spring and Autumn period had been consolidated into seven major contenders and a few minor enclaves. The above map shows a delineation of the states.
Warring States, also called Contending States, Chinese (Pinyin) Zhanguo, or (Wade-Giles romanization) Chan-kuo, (475â221 bc), designation for seven or more small feuding Chinese kingdoms whose careers collectively constitute an era in Chinese history. The Warring States period was one of the most fertile and influential in Chinese history. It not only saw the rise of many of the great philosophers of Chinese civilization, including the Confucian thinkers Mencius and Xunzi, but also witnessed the establishment of many of the governmental structures and cultural patterns that were to characterize China for the next 2,000 years.