Unit 1 (matter, uncertainties, and dimensional analysis)
Classify pure NaCl as an element, compound, or mixture
compound
The number of protons, neutrons, and electrons associated with a neutral atom of cobalt
p = 27, e = 27, n = 32
Type of compound when a metal bonds with a non-metal
Ionic
Lewis structure of CH4
Correct drawing
Molar mass of CH4
16.05 g/mol
The uncertainty associated with measuring the same value correctly a number of times and getting slightly different values
Random Uncertainty
The electron configuration of Br-
1s22s22p63s23p64s23d104p6
Name of this compound and type of bonding present:
S2O3
covalent
disulfur trioxide
VSEPR geometry of AlF3
Trigonal Planar
Number of oxygen atoms per formula unit of Fe(OH)2(NO2).3H2O
NOTE dot doesn't work well in this, so the dot is a period above
7 oxygen atoms
The number of significant figures for 0.033000
5
Name of the type of orbital with three distinct orbitals that are each shaped like dumbbells on the x, y, and z axis
p orbitals
The actual particles associated with the bonding in metallic bonds
Positive cations and sea of delocalized electrons
Bond polarity and molecular polarity of BeCl2
Polar bonds, non-polar molecule
How many grams in 3.4 moles of MgCl2
323.72 grams MgCl2
Answer must include units and chemical name
What is the answer (use correct significant figures, scientific notation, and units)?
3.27 x 104 g - 1.45 x 103 g
3.13 x 104 g
The number of protons, neutrons, and electrons associated with 126I-
p = 53, n = 73, e = 54
Charge balanced compound associated with Zinc (II) phosphate
Zn3(PO4)2
Requirement for hydrogen bonding to occur
H directly bonded to either F, N, or O
Number of molecules in 6.7 moles of H2O (Avogadro's number is 6.02 x 1023 particles/mol)
4.03 x 1024 molecules of H2O
correct answer must include units and chemical name
Correct answer includes appropriate sig figs and units
Convert 3.27 kg/m3 to mL/inch3
1kg = 1000g; 1g = 1 mL, 1m = 100 cm, 2.54 cm = 1 inch
0.0536 mL/inch3
The name of the technique used to measure different isotopes of atoms
Mass Spectrometry
Full list of types of compounds that conduct electricity with the associated phases
Metals (all)
Ionic (dissolved or molten)
Has highest boiling point: N2, O2, S2
List all IMF present
S2, LDF only
Number of oxygen atoms in 53 grams of Al(OH)3.5H2O (Avogadro's number is 6.02 x 1023 particles/mol)
1.52 x 1024 atoms of O
correct answer must include units and chemical name