unit 3 Flashcards
1
Q
what is a binary ionic compound?
A
a compound composed of ions of two different elements - one of which is a metal, and the other a nonmetal.
2
Q
what are the rules for naming Ionic compounds with polyatomic ions
A
- The cation is written first in the name; the anion is written second in the name.
- When the formula unit contains two or more of the same polyatomic ion, that ion is written in parentheses with the subscript written outside the parentheses.
- If the cation is a metal ion with a fixed charge, the name of the cation is the same as the (neutral) element from which it is derived
- If the anion is a monatomic ion, the anion is named by adding the suffix -ide to the root of the element name
3
Q
what are the rules for naming a Binary compound?
A
- The cation is written first in the name; the anion is written second in the name.
- The name of the cation is the same as the (neutral) element from which it is derived. The charge on the cation is indicated using a Roman numeral, in parentheses, immediately following the name of the cation
- The anion is named by adding the suffix -ide to the root of the element name
4
Q
how do you tell if a reaction was efficient or not?
A
if the percent yield is 90% or more
5
Q
how do you find percent yield
A
take the actual amount divided by the theoretical amount and multiply by 100
Actual / theoretical x 100