The Atom
Electrons
Chemical Bonds
Chemical Reactions
Random
100
What is the charge of a neutron?
0
100
How many electrons does Po have?
84
100
What is the difference between intermolecular and intramolecular?
Inter: between molecules
Intra: within the same molecule
DOUBLE POINTS
100
What are the 5 types of chemical reactions?
Single Replacement, Double Replacement, Combustion, Synthesis, Decomposition
100
Identify the molecular shape for a diatomic element like H2.
Linear
200
What is group 17 called on the periodic table?
Halogens
200
What is a cation? Give an example.
Positively charged atom. DOUBLE POINTS
200
What are electrons doing within ionic bonds?
Being taken to create ions of opposite charges.
200
Na2S + 2Li 🡪 Li2S + 2Na
What would be the classification for this reaction?
Single Replacement
200
What is the difference between nuclear fission and fusion?
Fission: atoms splitting, can happen on earth, releases energy
Fusion: atoms combining, happens in stars, requires energy
STEAL 100 POINTS FROM THE NEXT TEAM
300
What is the identity of an atom in the halogens that weighs 294 amu?
Lv
300
What is the oxidation number for S?
2-
300
Which bond is stronger, ionic or covalent bonds?
Ionic bonds
DOUBLE POINTS
300
Would substance A be a reactant or product? When does the reaction reach equilibrium?
Reactant, 2.5 min
300
What is stored within ionic and covalent bonds?
ENERGY
400
What is the identity of at atom that has 24 protons, 25 neutrons, and 22 electrons?
Chromium (II) or Cr2+
400
What is the electron configuration in noble gas notation for Sr?
[Kr]5s2
400
What are the three types of intramolecular bonds? How are they different?
Ionic: between metal + nonmetal
Covalent: nonmetals
Metallic: between metals
400
Balance the following reaction: Fe(s) + H2O(g) ⇌ Fe3O4(s) + H2(g)
3Fe(s) + 4H2O(g) ⇌ Fe3O4(s) + 4H2(g)
400
What theory explains that atoms must collide at a specific velocity and orientation to cause a chemical reaction in which bonds form and break?
Collision Theory
500
What is the atom with the highest electronegativity? What is its oxidation number? Is it a cation or anion?
F1- Anion
500
What is the electron configuration for Ca?
1s22s22p63s23p64s2
500
Which type(s) of intermolecular force occurs between molecules that contain H, F, O, N?
H-bonding
500
According to Le Chatelier’s principle, if more water was added to the following reaction at equilibrium, what will happen?
3Fe(s) + 4H2O(g) ⇌ Fe3O4(s) + 4H2(g)
Forward reaction would be favored
STEAL 200 POINTS FROM ANOTHER TEAM
500
How could you increase the rate of a chemical reaction to increase collisions between molecules?
Increase temperature
Increase surface area
Add a catalyst