Honors Chemistry Final Exam Flashcards

Terms Definitions
cation
positive
Hydrogen Carbonate
HCO⁻₃
avocadro's number
6.02*10^23
mol-m/c
mol * 6.02*10^23
Sulfite
SOⁱⁱ ⁻ ₃
combustion
produce CO2 and H2O
biochemistry
chemistry of living things
percent error
experimental-accepted/accepted x 100%
Energy
Which variable is directly proportional to frequency?
solid
definite volume, particles close together, vibrate around fixed point (strong force)
accepted value
"true" value/ "theoretical" value
4d^(5)5s^1
Which of the following electon configurations of outer sublevels is the most stable?
ternary ionic compounds
-contains three diff. elements-usually polyatomic ion-'ate' and 'ite' ending
conduct
heat and electricity (all metals do)
in scientific notation the negative moves...(1) and the positive moves...(2)
1.left
2.right
element symbol
An international abbreviation for element names, usually consisting of the first one or two distinctive letters in element name. Some symbols are abbreviations for ancient names.
Barometer
n instrument that measures atmospheric pressure. A mercury barometer is a closed tube filled with mercury inverted in a mercury reservoir. The height of the mercury column indicates atmospheric pressure with 1 atm 760 mm of mercury.
reactants
any substance that undergoes a chemical change in a given reaction.
Potassium
Which of the following elements has the smallest first ionization energy?
3
How many electons does nitrogen gain in order to achieve a noble-gas electron configuration?
analytical (branch)
composition/make up of chemicals, ue many instruments
groups and periods of elements have similar...
properties
Math with Significant Figures
pg. 22 in notes
exothermic
Noting or pertaining to a chemical change that is accompanied by a liberation of heat
kinetics
the branch of mechanics that deals with the actions of forces in producing or changing the motion of masses.
avogadro number
The constant, 6.02 Atilde;mdash; 1023, representing the number of atoms in a gram atom or the number of molecules in a gram molecule.
Atomic emission spectrum
a set of frequencies of electromagnetic waves given off by atoms of an element
2
How many unpaired electrons are in a sulfur atom (atomic number 16)?
metal exceptions
Mercury is liquid and Bi is brittle
compounds
substance made of only one kind of molecule (or formula unit), usually not listed on the periodic table only O2 and F2
Accuracy
how close a measurement is to the actual value
Kinetic Molecular Theory
A theory concerning the thermodynamic behavior of matter, especially the relationships among pressure, volume, and temperature in gases. It is based on the dependence of temperature on the kinetic energy of the rapidly moving particles of a substance. Acc
atomic number
the number of positive charges or protons in the nucleus of an atom of a given element, and therefore also the number of electrons normally surrounding the nucleus.
Number of neutrons
Isotopes of the same element have different ___.
4s
What is the next atomic orbital in the series 1s, 2s, 2p, 3s, 3p?
10.0 L
How many liters of hydrogen gas are needed to react with CS2 to produce 2.50 L of CH4 at STP?
physical change...
causes no change in the identity of the material (cutting, grinding, boiling)
Polyatomic Ion
A polyatomic ion is a charged particle that contains more than two covalently bound atoms.
LIquid
A state of matter that has a high density and is incompressible compared to a gas. Liquids take the shape of their container but do not expand to fill the container as gases do. Liquids diffusemuch more slowly than gases.
0.1 mol
What is the number of moles of solute in 250 mL of a 0.4M solution?
11 mm^2
Express the product of 2.2 mm and 5.00 mm using the correct number of significant digits.
biased rouding
if next digit is greater than 5, round up which is favoring higher numbers
Molecular Formula
A notation that indicates the type and number of atoms in a molecule.
22 mol
What is the number of moles in 500 L of He gas at STP?
rule of conservation mass
you can't create or destroy mass and matter in a reaction
potential energy
the energy of a body or a system with respect to the position of the body or the arrangement of the particles of the system.
They are inversely proportional to each other.
How are the frequency and wavelength of light related?
Atoms of the same element are always identical.
Dalton's atomic theory included which idea?
Single Replacement
A reaction of the form A BC B AC.
Have a numerical charge that is found by subtracting 8 from the group number.
The nonmetals in Groups 6A and 7A ____.
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