Bonds
Definitions
Name the compound I
Write the chemical formula
Basics
100
Why do elements bond?
To attain 8 electrons in their outermost shell
100
What is a covalent bond?
nonmetal + nonmetal / electrons are shared
100
Name the following compound: CaCl2
calcium chloride
100
Write the chemical formula for: copper (II) chloride
CuCl2
100
What is an element?
A substance that cannot be broken down
200
Is KCl is a covalent or ionic bond?
ionic
200
What is an ionic bond?
metal + nonmetal/ cation loses electron and anion gains electron
200
Name the following compound: KI
potassium iodide
200
Write the chemical formula for: calcium oxide
CaO
200
What is a compound?
Two or more elements together
300
Which type of bond is ClO2 ?
covalent
300
What is an ion?
An element that lost/gained electrons
300
Name the following compound: NaClO3-
sodium chlorate
300
Write the chemical formula for: Aluminum sulfide
Al2S3
300
What is a bond?
When elements share, gain or lose electrons
400
What is a polyatomic ion?
A covalent bond with an overall charge
400
What is electronegativity?
An element´s ability to attract electrons
400
Name the following compound: KMnO4
Potassium permanganate
400
Write the chemical formula for: lithium hydroxide
LiOH
400
F2 is an example of a non-polar covalent bond. True or False?
True
500
Do a lewis dot structure to predict the chemical formula of a compound containing nitrogen and hydrogen
NH3
500
What is an oxidation number?
The charge of an element
500
Name the following compound: NH4CN
ammonium cyanide
500
Write the chemical formula for: magnesium sulfate
MgSO4
500
Why do some polyatomic ions end in "ate" and some others in "ite"? (What does it depend on?)
The number of oxygen atoms.
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