Ionic
Bonds
Covalent Bonds
Grab Bag #1
Grab Bag #2
Grab Bag #3
100
What is an ion?
A charged particle
100
In a covalent bond the electrons are __________ between the atoms?
What is shared?
100
How many pairs of electrons are shared between the two nitrogen atoms in a molecule of N2?
What is THREE?
100
Consider the reaction: H2CO3 --> H2O + CO2 Is this reaction endothermic or exothermic?
Endothermic
100
This type of compound has a high boiling point and is a good electrolyte.
What is an ionic compound?
200
What happens to the electrons in an Ionic Bond?
They are transferred from the cation to the anion
200
Under what conditions will a non-polar covalent bond exist?
When the difference in electroneg is zero?
200
If the Dot Diagram of a compound has zero dots around one atom and eight dots around the other, what type of compound are you looking at?
What is an ionic compound?
200
Consider the reaction: Na + Cl --> NaCl Is this reaction endothermic or exothermic?
Exothermic
200
During electrolysis, the H2O molecule is split apart into H2(g) and O2(g). Is this process endothermic or exothermic?
What is endothermic?
300
The most common type of ionic compound occurs between what two types of substances?
What is a metal and non-metal?
300
In terms of hardness, covalent compounds are typically ___________.
What is soft?
300
What type of substances dissolve in water?
Polar substances
300
Consider the reaction: NH4OH --> H2O + NH3 Is this reaction endothermic or exothermic?
Endothermic
300
What type of bonding exist in pure gold?
Metallic
400
In an ionic bond the difference in electronegativity between the cation and the anion is...
What is very high?
400
What is an example of a compound that has a polar covalent bond?
Many correct answers
400
Consider the compound BF3. Describe its bonds in terms of polarity and describe the molecule as a whole in terms of polarity?
Polar bonds and polar molecule
400
In terms of distribution of charge, why is CH3 a polar molecule?
It has an unequal/asymmetical distribution of charge
400
Why are pure metals good conductors?
Because they have a sea of mobile valence electrons
500
What type of bonding exists within the Polyatomic Ion, NH4+?
Covalent
500
How many electrons are shared between two carbon atoms that are double-bonded to one another?
4
500
Consider the substance CH4. Describe its bonds in terms of polarity and describe the molecule as a whole in terms of polarity?
Polar bonds, but non-polar molecule
500
Which bond is more polar: 1) A bond between C and O 2) A bond between N and O 3) A bond between C and N
Between C and O
500
Which one of the following IMF forces is the strongest: 1) London Dispersion Forces 2) Dipole-Dipole Forces 3) Hydrogen Bonding
Hydrogen Bonding
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