Atomic Structure & Modern Atom
Isotopes, Atomic Mass, Energy Levels, and Oxidation Numbers
Bonding, Empirical Formulas, and Compound Types
Exothermic/Endothermic, Phase Change, Heat Calculations, and Heat Movement
Balanced Equations, Energy in Reactions, and Mole Ratios
Organic Chemistry Structures and Naming
Student Trivia
100
What did scientists learn from the gold foil experiment?
(1) Atoms are solid balls
(2) Electrons are negative
(3) Atoms have a small, dense center (nucleus)
(4) Electrons move in energy levels
(3) Atoms have a small, dense center (nucleus)
100
Define isotope in your own words.
Isotopes are atoms of the same element with the same number of protons but different numbers of neutrons
100
Which pair shows two different types of compounds?
(1) Covalent and molecular
(2) Ionic and molecular
(3) Covalent and electrical
(4) Ionic and electrical
(2) Ionic and molecular
100
How does a catalyst speed up a reaction?
(1) Gives a new pathway with lower energy
(2) Adds more energy
(3) Increases energy needed
(4) Increases reactant energy
(1) Gives a new pathway with lower energy
100
Is this balanced: C + O2 --> CO2
Left: 1 C, 2 O
Right: 1 C, 2 O
Already balanced!
100
What are isomers?
Isomers have the same molecular formula but different structures
100
Who is most likely to eat 10 times a day for fun?
Toluwalashe
200
An atom has 37 protons. How many electrons does it have?
(1) 12
(2) 37
(3) 49
(4) 86
(2) 37
200
Are isotopes of the same element or different elements?
Same element, different mass numbers
200
Which formula shows the simplest ratio of atoms (empirical formula)?
(1) N₂O₄
(2) N₂O₅
(3) N₂F₂
(4) N₂H₄
(2) N₂O₅
200
Which condition makes a reaction happen fastest?
(1) Powdered iron at low temp
(2) Powdered iron at high temp
(3) Solid iron strip at low temp
(4) Solid iron strip at high temp
(2) Powdered iron at high temp
200
Random Points
Good Job!!
200
What process produces alcohol?
Fermentation
200
Who is most likely to be caught arguing with a brick wall in public?
Koren
300
Compared to a proton, an electron has:
(1) The same mass
(2) Much less mass
(3) Much more mass
(4) No mass
(2) Much less mass
300
Find the oxidation number of sulfur in H₂SO₄.
H = +1 each (2 × +1 = +2)
O = -2 each (4 × -2 = -8)
Total: +2 + S + (-8) = 0
S = +6
300
Which molecule has an uneven shape (asymmetrical)?
(1) HCl
(2) CO₂
(3) Cl₂
(4) CH₄
(1) HCl
300
Most natural processes move toward:
(1) Lower energy and less disorder
(2) Higher energy and less disorder
(3) Lower energy and more disorder
(4) Higher energy and more disorder
(3) Lower energy and more disorder
300
Why is this equation balanced?
This equation is balanced because there are the same number of each type of atom on both sides of the equation.
300
What type of organic compound is reactant 1?
Organic Acid
300
Who is most likely to backhand slap you because they laughed too hard?
Jaden M.
400
In the modern model of the atom, electrons are found in:
(1) Spectra
(2) Orbitals (regions of space)
(3) Nuclei
(4) Quanta
(2) Orbitals (regions of space)
400
Explain why K-39 and K-40 are isotopes.
They are both atoms of the same chemical element, but they contain different numbers of neutrons
400
When an atom gains an electron, what happens?
(1) Becomes positive and smaller
(2) Becomes negative and larger
(3) Becomes positive and larger
(4) Becomes negative and smaller
(2) Becomes negative and larger
400
If temperature increases, what happens to this reaction?
H₂ + I₂ + heat ⇌ 2HI
(1) Shifts right, less HI
(2) Shifts right, more HI
(3) Shifts left, less HI
(4) Shifts left, more HI
(2) Shifts right, more HI
400
How do you know this reaction releases energy?
91.8 kJ is written on the product side
400
What element makes reactant 2 organic?
Carbon
400
Who is most likely to win a million dollars, but get jumped by the whole class for it just cause?
Michael
500
Compare energy levels of the first shell and fourth shell of a potassium atom.
More energy in fourth shell than first shell since its farther from the nucleus
500
Show how to calculate atomic mass using the chart.
(38.964 X 93.26) + (39.964 X 0.01) + (40.962 X 6.73)
500
Which compound has both ionic and covalent bonds?
(1) CaCl₂
(2) KClO₂
(3) Li₂S
(4) MnO₂
(2) KClO₂
500
Which substance releases heat when it dissolves (exothermic)?
(1) KNO₃
(2) NaOH
(3) NH₄Cl
(4) NH₄NO₃
(2) NaOH
500
How many moles of H₂ are needed to make 10 moles of NH₃?
15 moles of H2
500
How many electrons are shared between the carbon atoms?
2 or one pair
500
Who is most likely to plan a heist and account for all pieces, but forgot to show up on time for it?
Adrian