Question

which of the following is the proper electron dot diagram for nacl? a) na :cl: b) na+:cl:- c) na+cl- d) na+:cl: what type of chemical reaction will produce a single product from two or more reactants? double replacement decomposition synthesis combustion

Explanation:

1. For the electron - dot diagram of NaCl: Sodium (Na) is a metal and loses one electron to form a $Na^+$ ion. Chlorine (Cl) is a non - metal and gains one electron to form a $Cl^-$ ion. In the electron - dot diagram of an ionic compound like NaCl, the metal ion is written first with its charge outside the brackets and the non - metal ion is written with its valence electrons shown as dots around it and its charge outside the brackets. Option b correctly shows $[Na]^+[:\ddot{Cl}:]^-$.
2. For the type of chemical reaction: A synthesis reaction combines two or more reactants to form a single product. A double - replacement reaction involves the exchange of ions between two compounds. A decomposition reaction breaks a single compound into two or more simpler substances. A combustion reaction typically involves a substance reacting with oxygen to produce heat and light and usually multiple products.

Answer:

1. b
2. synthesis