What does the second word in the name of a binary ionic compound represent?

the group 1 element

the negative ion

the positive ion

the metal

Option(B) The Negative ion

Explanation:

A nonmetal anion is the negative ion part in the given compound. A binary compound is composed of a monatomic nonmetal anion and a monatomic metal cation.

First we examine the formula of the binary ionic compound in order to name the given compound. We find out the type of the compound given. The first part i.e element of a binary ionic compound will always represent a metal in the formula of the given compound, whereas the second part or element will be a non metal in every binary ionic compound. The metal cation which is the positive ion is first named before the nonmetal anion. Naming is not affected by the subsets present in the formula.

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.