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Counting Atoms
Core Concepts
Bonds
Writing/Naming Formulas
Potpourri
100
The last step in counting atoms is to multiply everything by this.
What is the coefficient.
100
This number is never used in formulas. It is invisible and is assumed to be there, even if you can't see them.
What is the number 1.
100
What type of bond has atoms sharing electrons?
What is covalent.
100
What would the name be for the compound K2O
What is potassium oxide.
100
The first step of the counting atoms process is to do this.
What is count the number of atoms inside the parentheses
200
When counting atoms, what is the first thing that I need to address?
What are the atoms inside of the parentheses.
200
When you write the formula for a compound made of Iron (III) and Chlorine, what does the roman numeral tell you?
Use the Iron with an oxidation number of +3 when you do the crisscross method.
200
What type of bond has electron transfer?
What is Ionic.
200
Write the correct formula for a compound of Zinc and Phosphate. Hint: NH4 Ammonium NO3 Nitrate CH3CO2 Acetate NO2 Nitrite CO3 Carbonate PO4 Phosphate CrO4 Chromate SO3 Sulfite OH Hydroxide SO4 Sulfate
What is ZN3(PO4)2
200
The name for the compound containing Oxygen and Aluminum would be called this.
What is Aluminum Oxide.
300
How many hydrogen atoms are there in 15 molecules of water?
What is 30 hydrogen atoms.
300
This type of bond is formed with atoms lose/gain electrons.
What is an Ionic Bond.
300
What type of bond would be formed between Sulfur and Oxygen?
What is Covalent.
300
Determine the correct formula for a compound of Iron (III) and Bromine.
What is FeBr3
300
When Chlorine combines with Sodium, Chlorine with gain, lose, or share electrons?
What is gain 1 electron.
400
How many oxygen atoms are in 2 molecules of Mg(NO3)2? Note: the 3 in NO3 is a subscript on the Oxygen, and the 2 is a subscript outside of the parentheses.
What is 12 atoms of oxygen.
400
Atoms will combine because of this.
They want to fill their outer shells of electrons
400
What type of bond will form between Sodium and Aluminum?
What is Metallic
400
Anytime that I see a parentheses surrounding a group of atoms, what does that indicate those atoms are?
The atoms are polyatomic ions.
400
A bond between Manganese and Titanium would be this type.
What is a metallic bond.
500
If I correctly form a compound for calcium and the nitrate polyatomic ion (NO3 with a -1 charge), how many nitrate ions will I have?
What is 2.
500
What does an oxidation number of -1 mean?
The atom needs to gail 1 electron when it forms a compound and therefore has 7 valence electrons in its outer most shell.
500
Draw a picture for the interaction of Sodium and Flourine. Show all the electrons for each, and illistrate how they react with eachother. If applicapable, indicate if there is a partial charge on any of the ions. Indicate the type of bond.
Ionic Bond Sodium has a + charge and is donating an electron Flourine has a - charge and is acepting an electron
500
What would I name the formula MgSO4? Hint: NH4 Ammonium NO3 Nitrate CH3CO2 Acetate NO2 Nitrite CO3 Carbonate PO4 Phosphate CrO4 Chromate SO3 Sulfite OH Hydroxide SO4 Sulfate
What is Magnesium Sulfate
500
A compound composed of two elements is this type of compound.
What is a binary compound.