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Chemistry Ch. 3

QuestionAnswer
What are ionic compounds? combination of an anion & cation. [usually a nonmetal + metal]
What are covalent compounds? combination of 2 nonmetals
What is an ionic bond? when positive and negative ions attract each other
A bond that results from sharing electrons is called a ___ bond covalent
The molecular formula provides the ___ ___ of atoms present in a compound. actual number
The empirical formula provides the relative ___ of atoms and is basically the ____ version of the molecular formula ratio , simplified
The structural formula ____ uses lines to show how the atoms are connected or bonded to a compound
The color blue usually represents the element:___ nitrogen
The color white usually represents the element:___ hydrogen
Diatomic means ____ two atoms
A ___ element has a bond with another atom of itself. molecular
Which element is not bonded to anything else? atomic element
How many diatomic molecules are there? 7
The diatomic element starts at the element Nitrogen (N) and makes a 7, ending with ___ astastine (At)
What are the seven diatomic molecules? 1. nitrogen 2. oxygen 3. fluorine 4.chlorine 5.bromine 6.iodine 7.astastine
Diatomic molecules are bonded to ___ itself
A diatomic molecule is considered an: element
___ compounds occur when you have more than one atom bonded together to form a ___ compound Molecular - covalent
Rules in naming ionic compounds. 1. the name of the cation (+) is written first and named as its elemental name. 2. the anion (-) is written with -IDE 3. use roman numerals if compound contains transition metal 4. if compound contains polyatomic ion, the name of polyatomic ion is use
What does the roman indicate when naming a ionic compound? charge of the cation (+)
When ionic compounds are neutral in charge, total charge of the anion and cation must be equal but _____ opposite in sign
Cation? postively charged ion
Anion? negatively charged ion
___ is the only polyatomic ion with a charge of +1? Ammonium - NH4
___ is the only polyatomic ion with a charge of -3? Phosphate - PO4
Which polyatomic ions have a charge of -2? 1. Carbonate - CO3 2. Sulfate - SO4 3. Sulfite - SO3 4. Chromate -CrO4
Chromate, Carbonate, Sulfate and Sulfite all share a charge of? -2
Acetate, Hydroxide, Nitrate, Nitrite, Perchlorate, Chlorate, Permanganate and Cyanide all share a charge of ___ -1
Acetate has a charge of __. The formula is __ -1. CH3COO
Hydroxide has a charge of __. The formula is ___ -1. OH
Nitrate has a charge of __. The formula is ___ -1. NO3
Nitrate has a charge of __. The formula is ___ -1. NO2
Perchlorate has a charge of __. The formula is ___ -1. ClO4
Chlorate has a charge of __. The formula is ___ -1. ClO3
Permanganate has a charge of __. The formula is ___ MnO4
Cyanide has a charge of __. The formula is ___ CN
Prefix for one mono-
Prefix for two di-
Prefix for three tri-
Prefix for four tetra-
Prefix for five penta-
Prefix for six hexa-
Prefix for seven hepta-
___ are a type of compound that releases a __ ion when dissolved in water. Acids. hydrogen
Rules for naming binary acids: 1. begin with hydro- 2. followed by root of atom 3. followed by ending -ic 4. ending w/ the word acid
A polyatomic ion is __
What is a molecular element?
What is an atomic element?
(OH)2 is called : hydroxide
(NO)2 is called: nitrite
(NO)3 is called: nitrate
The sum of all the molar masses present in a compound is called the ___ formula mass
The mass percent is the element's ____ of the compound's ___ percentage - total mass
Created by: Mariahj25