explain steps to write chemical formula
Answers
Answer:
A good way to think about a chemical reaction is the process of baking cookies. You mix the ingredients together (flour, butter, salt, sugar, and eggs), bake it, and see that it changes into something new: cookies! In chemistry terms the equation is the recipe, the ingredients are "reactants," and the cookies are "products." All chemical equations look something like "A + B →C (+ D...)," in which each letter variable is an element or a molecule (a collection of atoms held together by chemical bonds). The arrow represents the reaction or change taking place. Some equations may have a double-headed arrow (↔), which indicates that the reaction can proceed either forward or backward. To write the equations there are a number of important naming rules that you need to know.
Answer:
- You need to know the name of all the elements means you have to know the short form.For example Sodium - its short form is Na
- Then you need to know the valences of all the elements like Sodium has valency +1
- Then you need to do criss crossing like for example Aluminium chloride -Al3+. Cl-. then do criss crossing and hence you will get AlCl3 as on criss crossing the valency of aluminium went towards Chlorine
- Remember positive and negative sign don't interchange but on combining they both cancel each others effect.