Nomenclature
Unit 1
Conversions
Bonding
Misc.
100
Name: K2O
potassium oxide
100
Name 4 diatomic elements.
O, H, F, Cl, I, Br, N
100
Where do I find the mass of one mole of an element?
Periodic Table
100
Describe a covalent bond
A pair of electrons shared between two nonmental atoms
100
Who won the 2007 World Series?
The Boston Red Sox
200
What is the formula of aluminum sulfide?
Al2S3
200
What is the difference between a compound and a mixture?
Compound - atoms bonded together, fixed ratio
Mixture - no permanent bonds, ratio can vary
200
What do I need to convert from mols of CO2 to moles of H2O?
A balanced chemical equation
200
Why are solid metals conductive?
Because in metallic bonding, valence electrons are delocalized and mobile so they are free to conduct electricity
200
What college did Ms. Calcio attend?
Barnard College
300
Why do certain compounds have roman numerals in the name?
Transition metals can have multiple charges - roman numerals specify the charge of the metal in the compound
300
Why is melting of water a physical change?
Because there are no bonds made or broken - just a change in the kinetic energy of the molecules.
300
What is wrong with this stoichometry set-up?
4.15 g C xx (12.01 mol C)/(1 g C) xx (2 mol Mg)/(3 mol C) xx (24.30 g Mg)/(1 mol Mg)
12.01 mol C does not equal 1 g C.
300
What is wrong with this Lewis Structure?
Doesn't have an octet
300
Starring in that year's Best Picture, who won the 2025 Oscar for Best Actress?
Mikey Madison (Anora)
400
Name: PbO2
lead (IV) oxide
400
Is "The batter changes from liquid to solid in the oven." a chemical or physical change?
Chemical - cooking is always chemical. A phase change doesn't make sense because heat would not make something freeze
400
What is wrong with this set-up?
100 g Li_2O xx (1 mol)/(29.88 g) xx (6.022 xx 10^23 atms)/(1 mol)
Have calculated moles of a molecule, not moles of an atom
400
What is wrong with this Lewis structure?
Too many total electrons
400
Divided into the Inner and Outer, what is the largest archipelago in the United Kingdom, found off the West Coast of Scotland?
The Hebrides
500
Name: Bi(NO3)2
bismuth (II) nitrate
500
What would be the best way to separate a mixture of sand and salt?
Mix into water, salt dissolves, separate by filtration
500
List the conversion factors in order you would need to answer the question: how many O atoms are in 100 g of CO2?
Molar Mass CO2 -- Molar Ratio of O in CO2 -- Avogadro's Number
500
Explain what makes a bond polar.
Unequal values of electronegativity lead to unequal sharing of electrons, so that one end of the bond has a partial negative charge and the other has a partial positive charge.
500
Airing in 1951, what was the first sporting event broadcasted in color in the US?
A horse race