Vocabulary
Define Molecular Mass
The total mass of a molecule within one mole
Nonmetals form ______ ions and metals form ______ ions in an ionic bond.
anions, cations
How do we visualize bonds in covalent bonds?
Lewis Structure
Lattice energy and (what characteristic of the compound) are directly proportional?
"_____________ point"
Melting point
How many moles of Cl- are in MgCl2?
TWO
What the difference between actual and theoretical yield
Actual-- found in the lab from measuring using a scale
Theoretical--- found through stoichiometry using the amounts used and the balanced equation
What type of element (metal and/or nonmetal) are most likely to form an ionic bond?
Nonmetal and metal bonding to eachother
Two types of covalent bonds?
Polar vs nonpolar
freebeeeeeeee :D
:P
Is NaCl a covalent or ionic bond? Explain your reasoning.
Ionic; a metal (Na) and a nonmetal(Cl) bonded together
Define the Mole
A unit used to measure an amount of a substance such as products and reactants for a reaction
Which of the following is not considered when finding an ionic bonds chemical formula:
A. Least common Multiple
B. The charge of the ion.
c. The column the element is found in.
d. The electronegativity of the individual ions.
D.
Define Polar vs nonpolar bonds
polar---uneven sharing; partial charge
nonpolar--even sharing; no charge
What is the lattice Energy equation? Which factors is proportional vs unproportional with lattice energy?
E=(k)(Q1)(Q2) / d
d=unproportional with E
(Q1)(Q2)= proportional
Whats the actual yield if
Theoretical yield = 98.76g
Percentage yield =79.5%
78.5g
Define Molecular Percent
The percentage of weight one element holds within a compound
Whats the chemical formula for the Mg ion and the Cl ion?
MgCl2
What type of elements (nonmetal vs metal) tends to form a covalent bond?
Nonmetals only
What characteristic most effects the amount of lattice energy that a ionic compound obtains???
product of the charges of the ions
Draw the Lewis Structure for NO2-
***Miss Wall will Draw***
Define Avogadro's Number
The amount of atoms in one mole of a specific element.
Whats the formula for the ion N and the ion Na combining?
NaN3
Which covalent bond is the strongest? Justify your answer.
N2 vs PF3
N2; has a triple bond where PF3 only has single bonds.
Rank these from highest to lowest melting point:
LiF , LiBr, LiI, LiCl
LiF>LiCl>LiBr>LiI
Draw H2SO4 Lewis Structure