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Marshall University CHM 211 Final All Possible Questions and Answers

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  • Marshall University CHM 211

Acetate - ️️CH3COOacid-base reaction - ️️When an acid and base mix together, neutralize one another's properties, and form a salt. Ammonium - ️️NH4+ angular momentum quantum number - ️️symbolized by l, indicates the shape of the orbital Anion - ️️high first ionization energ...

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  • October 28, 2024
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  • 2024/2025
  • Exam (elaborations)
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Marshall University CHM 211 Final
Acetate - ✔️✔️CH3COO-

acid-base reaction - ✔️✔️When an acid and base mix together, neutralize one
another's properties, and form a salt.

Ammonium - ✔️✔️NH4+

angular momentum quantum number - ✔️✔️symbolized by l, indicates the shape of the
orbital

Anion - ✔️✔️high first ionization energy, very negative EA

Anion Trend - ✔️✔️are larger than the atom from which they were formed

antibonding MO - ✔️✔️ex) 1s - 1s = sigma 1s**
has higher energy

atomic size trend - ✔️✔️increases down and to the left

atomic symbol - ✔️✔️A = mass number (upper)
Z = atomic number (bottom)

Bent electron geometry - ✔️✔️<120 degrees
AX2E
AX2E2
sp2

bond energy equation - ✔️✔️ΔH(rxn) = ∑[ΔH(reactant bonds broken)] + ∑[ΔH(products
bonds formed)]

product bonds formed are negative

Bond energy trend - ✔️✔️higher bond order = higher BE = shorter bond length =
stronger bond

Bond length trend - ✔️✔️increases down a group, decreases across a period

bond order - ✔️✔️the number of bonds between atoms: 1 for a single bond, 2 for a
double bond, and 3 for a triple bond

bond polarity and angle - ✔️✔️a molecule with a linear shape --> dipoles cancel

, a molecule with a bent shape --> dipoles don't cancel

bonding MO - ✔️✔️ex) 1s + 1s = sigma 1s

calculating moles of solute from diluted solution - ✔️✔️M(dil) x V(dil) = # mol solute =
M(conc) x V(conc)

calorie (cal) - ✔️✔️1 cal = 4.184 J

calorimetry equation - ✔️✔️q=mcΔT

Carbonate - ✔️✔️CO3 (2-)

Cation Trend - ✔️✔️are smaller than the atom from which they were formed

cations - ✔️✔️low first ionization energy, slightly negative EA

Celcius to Fahrenheit - ✔️✔️F = 1.8C + 32

centimeter (cm) - ✔️✔️10^-2

Chemical Properties of Matter - ✔️✔️ability to burn, ability to rust, ability to decompose

Chlorate - ✔️✔️ClO3-

Chlorite - ✔️✔️ClO2-

Chromate - ✔️✔️CrO4 2-

combination reaction - ✔️✔️A + B --> AB

combustion reaction - ✔️✔️produces CO2 and H2O

common units of pressure - ✔️✔️1 atm = 1.01325 x 10^5 Pa = 101.325 kPa = 760
mmHg = 760 torr

Compound - ✔️✔️substance formed by the chemical combination of two or more
elements in definite proportions

covalent bond - ✔️✔️nonmetal + nonmetal

Cyanide - ✔️✔️CN-

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