Chemical Bonds
Lewis Dot Structures
Chemical Names
Chemical Formulas
Acids
100
What is a chemical bond?
A bond that results from the attraction of nuclei for electrons, trying to achieve a stable octet. (8 electrons)
100
What elements are exceptions of the Octet Rule?
Hydrogen and Boron
100
What type of charge does a cation and anion have?
A cation has a positive charge and an anion has a negative charge.
100
Why is it necessary for to "cross over" when determining the formula for a binary ionic compound?
In order to balance the charges between ions.
100
What is the stock system of nomenclature?
It is a system that uses Roman numerals to indicate the ion's charge.
200
How can you differentiate a Ionic bond and a Covalent bond?
Covalent bonds will have electrons shared between two nonmetals. On the contrary Ionic bonds will share electrons between a metal and nonmetal.
200
When making a skeleton Lewis Dot Structure, which element goes in the middle?
If Carbon is present it always goes in the center otherwise the one with the least electronegativity goes in the center.
200
Do you have to change the ending of a polyatomic ion to -ide?
No you do not have to change the ending of the polyatomic ion.
200
What is the chemical formula for Sodium Carbonate?
Na2CO3
200
What is the name of HF?
Hydrofluoric Acid
300
What happens when Magnesium loses two electrons?
It becomes positively charged completely after losing two electrons (no electrons now because it only has two) that are negatively charged.
300
Which atom will never be in the middle of a Lewis Dot structure? A. N, B. C, C. H, D. P
C. H (Hydrogen)
300
Is there an exception for naming covalent compounds?
The exception is, if there is only one atom of the first element, then we don't use a prefix.
300
What is the chemical formula for Xenon Difluoride?
XeF2
300
What is the formula for Phosphorous Acid?
H3PO3
400
The ability of an atom to pull electrons towards itself in a compound is...
Electronegativity
400
What is the Lewis Dot structure of ICH3?
H ..
H-C-I ..
H ..
400
What is the chemical name for CI2O7, is it ionic or covalent?
Covalent; Dichloride Heptoxide
400
What is the chemical formula for Potassium Nitrate?
K(NO3)
400
Name this acid: H2SO4
The acid is sulfuric acid
500
What are Ionic and Metallic Bonds similar characteristics? What is different?
Both types of bonds are hard substances and have high melting point temperatures. Differently, an Ionic bond is a good conductor only in its liquid or dissolved phase. On the contrary, Metallic bonds are good conductors in either phase.
500
What is the Lewis Dot Structure for BeF2
500
What is the chemical name for AI2S3, is it ionic or covalent?
Aluminum Sulfide; Ionic
500
What is the chemical formula for Calcium Carbonate
CaCO3
500
The name of FeCI2 is...
iron (II) chloride