What is the charge of a neutron?
0
How many electrons does Po have?
84
What is the difference between intermolecular and intramolecular?
Inter: between molecules
Intra: within the same molecule
DOUBLE POINTS
What are the 5 types of chemical reactions?
Single Replacement, Double Replacement, Combustion, Synthesis, Decomposition
Identify the molecular shape for a diatomic element like H2.
Linear
What is group 17 called on the periodic table?
Halogens
What is a cation? Give an example.
Positively charged atom. DOUBLE POINTS
What are electrons doing within ionic bonds?
Being taken to create ions of opposite charges.
Na2S + 2Li 🡪 Li2S + 2Na
What would be the classification for this reaction?
Single Replacement
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
What is the identity of an atom in the halogens that weighs 294 amu?
Lv
What is the oxidation number for S?
2-
Which bond is stronger, ionic or covalent bonds?
Ionic bonds
DOUBLE POINTS
Would substance A be a reactant or product? When does the reaction reach equilibrium?
Reactant, 2.5 min
What is stored within ionic and covalent bonds?
What is the identity of at atom that has 24 protons, 25 neutrons, and 22 electrons?
Chromium (II) or Cr2+
What is the electron configuration in noble gas notation for Sr?
[Kr]5s2
What are the three types of intramolecular bonds? How are they different?
Ionic: between metal + nonmetal
Covalent: nonmetals
Metallic: between metals
Balance the following reaction: Fe(s) + H2O(g) ⇌ Fe3O4(s) + H2(g)
3Fe(s) + 4H2O(g) ⇌ Fe3O4(s) + 4H2(g)
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
What is the atom with the highest electronegativity? What is its oxidation number? Is it a cation or anion?
F1- Anion
What is the electron configuration for Ca?
1s22s22p63s23p64s2
Which type(s) of intermolecular force occurs between molecules that contain H, F, O, N?
H-bonding
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
How could you increase the rate of a chemical reaction to increase collisions between molecules?
Increase temperature
Increase surface area
Add a catalyst