What does zn h2ci2-----znci2 h2o mean?

Answer 1

You should have written this equation as Zn + H2Cl2 --> ZnCl2 + H2O. Regardless, this equation is meaningless. There is no h2ci2. The ci is actually cl (for chlorine), and should be written in as Cl. There is HCl, which is hydrochloric acid, or hydrogen chloride. The fact that oxygen appears on the right side of the equation but not on the left side means that this equation is basically meaningless. What is a possibility is Zn + 2HCl --> ZnCl2 + H2, which means zinc and hydrochloric acid react to produce (yield) zinc chloride and hydrogen. The symbols for elements are written as capital letters for a single letter, such as H for hydrogen, or as a capital letter followed by a lowercase letter for two letters, such as Cl or chlorine. Also, the numbers written after an element in a chemical formula are subscripts, meaning they are written on the bottom right of the element's symbol. A chemical equation requires a plus (+) symbol in between the reactants on the left side and the products on the right side. Also, all of the elements on one side of an equation must also be on the other side of the equation, in equal numbers. Lastly, an arrow (-->) goes between the reactants and the products, not a straight line. You cannot write a chemical equation as if you were texting. There are rules that everyone follows so we can all understand each other.