Naming molecules
What is the suffix all bonded elements get when they become part of a bond?
-ide
What two things connected to a central atom are considered electron domains?
Bonded atom and lone pair
How covalent bonds use their electrons to form a bond
sharing/ shared electrons
What are the units for molar mass?
g/mol
grams per mole
This famous tv show popularized general chemistry by including the elements Bromine and Barium in its title
Breaking Bad
Name 1 difference in naming covalent and ionic compounds
-covalent uses prefixes
-ionic names metals first
-no Roman numerals in covalent
What does the acronym VSEPR stand for?
Valence Shell Electron Pair Repulsion
For non-expanded octets, what is the maximum number of electrons domains that can be around an atom?
4
Why can you not compare limiting reactants in grams?
Chemicals weigh different amounts; we only have a ratio in moles from a balanced equation
These sharp, stationary marine organisms use long featherlike appendages filter feed through the water when the tide is high
Barnacles
The covalent naming prefix for a molecule with seven of a single element would be
Which of the VSEPR shapes has the most types of molecular geometry within one type of electron geometry?
Tetrahedral
According to the HONC rule, what is the number of bonds each listed element can make?
H = 1
O = 2
N = 3
C = 4
What are the coefficients needed to balance the following equation?
SF6(g) + H2O(l) -> HF(aq) + SO3(g)
1; 3; 6; 1;
This useful metal alloy of copper and tin revolutionized early metalworking capabilities
Bronze
What would the name of a molecule containing a balanced ratio of Bromine and Silicon be called?
Silicon tetrabromide
What is the difference between electron geometry and molecular geometry?
E only counts # of electron domains
M uses type of electron domain to determine actual shape
E may or may not refer to actual shape
Draw a valid lewis structure for the molecule CH3ClO including all necessary lone pairs
See structure on board
Using the equation below, determine how many grams of H2O could be made with 15.3 grams of oxygen:
H2 + O2 -> H2O
17.2 grams
15.3 / 32 * 2/1 molar ration * 18.01g/1mol
This element is used in biological imaging where patients drink its a as a marker for intestinal issues
Barium
What is the name of this compound?
Mn3N2
Manganese (II) nitride
Draw the Lewis structure for nitrogen trifluoride including all necessary lone pairs. Determine the molecular geometry of this molecule.
Structure on Board
Trigonal pyramidal
Find at least 2 incorrect details of the Lewis structure shown on the board:
H makes 1 bond
Carbon has no lone pairs
Carbon makes 4 bonds
Oxygen makes 2 bond
Based on the following balanced equation, would 2.1 moles of N2 or 10.6 grams of H2 be the limiting factor?
N2 + 3 H2 -> 2 NH3
H2 is limiting: only 3.49 mol of NH3 could be created
N2 could make 4.2 moles
Need both for points: This scientist with an initial bachelors degree in mechanical engineering from Cornell worked for this aviation company to design their flagship planes
Bill Nye and Boeing