name the following compounds and tell what type of compound they are (binary ionic, ternary ionic or binary molecular) FeBr3, b) CBr4 and c) Na2Cr2O7
What do you not understand about this problem? And how do you define the three terms of binary ionic, .....?
well for a i put iron brinide and that it was binary ionic.. b i put carbom bromide and c i put sodium chromium but i didn't thow what typoe of compounds they were
Here are three sites that give examples of the three types of compounds. By the way, Br stands for bromine.
http://www.rose.edu/faculty/vhall/Nomenclature/ternary_ionic_compounds.htm
http://en.wikipedia.org/wiki/Binary_ionic_compound
http://www.iun.edu/~cpanhd/C101webnotes/chemical-nomenclature/bimolcmpds.html
a) FeBr3: The first step in naming a compound is determining what type of compound it is. FeBr3 consists of iron (Fe) and bromine (Br). Since iron is a metal and bromine is a nonmetal, FeBr3 is a binary ionic compound.
To name binary ionic compounds, we use the following rules:
1. Name the cation first, which is the metal. In this case, Fe is the cation.
2. Name the anion second, which is the nonmetal. In this case, Br is the anion, and its name doesn't change.
3. Add the appropriate suffix for the metal's charge in the cation. Since Fe can form different charges, a Roman numeral is used to indicate its charge. In this case, Fe has a charge of 3+, so the Roman numeral III is used.
Therefore, the name for FeBr3 is iron(III) bromide.
b) CBr4: CBr4 consists of carbon (C) and bromine (Br). Both carbon and bromine are nonmetals, so CBr4 is a binary molecular compound.
To name binary molecular compounds, we use the following rules:
1. Name the first element using its element name. In this case, the element is carbon.
2. Name the second element by adding the suffix "-ide" to the root of the element's name. In this case, the root of bromine is "brom," so the second element is named bromide.
Therefore, the name for CBr4 is carbon tetrabromide.
c) Na2Cr2O7: Na2Cr2O7 consists of sodium (Na), chromium (Cr), and oxygen (O). Since sodium is a metal and chromium is a metal, while oxygen is a nonmetal, Na2Cr2O7 is a ternary ionic compound.
To name ternary ionic compounds, we use the following rules:
1. Name the cation first, which is the first metal in the formula. In this case, Na is the cation, and its name doesn't change.
2. Name the polyatomic ion second. In this case, the polyatomic ion is Cr2O7, known as chromate.
3. Add the appropriate suffix for the metal's charge in the cation if needed. Since Na forms a single charge of 1+, no suffix is added.
Therefore, the name for Na2Cr2O7 is sodium chromate.