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Abeka Chemistry Test 6 (semester exam)
Terms in this set (64)
What bond is for the formula N2O2
What bond is for the formula CaBra + NaCl
Bonding characterized by the sharing of one or more electron pairs between two atoms
Type of chemical bond between metal and non-metal atoms
States the position ans momentum of particles cant be precisely measured
The amount of heat required to melt one gram of a substance at its melting point
Convert 2.54 cm to mm
0° K and -273.15° C
State the absolute zero in Kelvins and Celsius
1) compounds are chemically combined and mixtures are physically combined
2) compounds are pure substances and mixtures are not
3) compounds can only be separated by chemical means and mixtures can be separated by physical processes
Three ways in which compounds differ from mixtures.
Second Law of Thermodynamics
States that the entropy of the universe always increases
Bond that's the transfer of electrons from one atom to another
Bond that produces solids that are malleable and ductile
The number of neutrons they have
Atoms of the same element can differ in...?
The simplest repeating unit in a crystal
Solid whose particles are characterized by a regular repeating 3D pttern
Electrons dropping from higher to lower energy levels
Bright colored lines in the spectrum of hydrogen gas are produced because of...?
Kinetic energy is associated with an object's...?
Bond where two polar bonds that point symmetrically in opposite directions
Bond characterized by the sharing of valence electrons forming a "sea"
Geometry where water has two bonding pairs and two nonbonding pairs
Negative and positive ends
A molecule described as DIPOLE is characterized by...?
Gas that adheres directly to the gas laws
Bonding situation where a Lewis Structure cannot accurately represent the arrangement of valence electrons
Heat energy is absorbed
What is NOT TRUE about a Exothermic reaction
The volume of 3 mols of an ideal gas under stp would be...?
Specific heat or Csp
Amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius
3.00 x 10^8 m/s
Speed of light in a vacuum
Covalent bond where the bonding electron pair is pulled closer to the more electronegative element
Includes very hard substances such as diamond, sillocon carbide, and quartz
The body temperature of a human averages 98.6° F. What temperature is this in Celsius to the 3rd sig fig?
Of the following atoms, which has the greatest electronegativity?
Sulfur, Calcium, Chlorine, and Cesium
Outermost electrons in an atom that are involved in chemical bonding
Alkaline earth metals
The following metals are apart of what group? Magnesium, Calcium, and Barium
The following metals are apart of what group? Fluorine, Bromine, and Iodine
Quantum Theory of Light
States that light consists of bundles or packets of energy called photons
Individual packets of light/energy
The mass of a substance per unit of volume
Intermolecular force responsible for the unexpected high boiling point of water
A molecule like methane with 4 bonding pairs of electrons has this kind of geometry
Formula that is the simplest ratio in the compound formula unit
"Chemical bonds can be classified as 100% ionic, covalent, or metallic."
(True or false)
What is Phosperous pentachloride
Has a negative charge
Single displacement reaction
What reaction is the equation
2n + 2HCl --> H2 + ZnCl2
Know the Lewis structure for ammonium
Principle that states that elements tend to react chemically to achieve a noble gas electron configuration, whether by losing, gaining, or sharing electrons
Bond that results from the sharing of four electrons
Equation that's the usual form of the ideal gas laws
Property that's used to predict whether it is primarly ionic or primarily covalent
Number of protons
The ___________ ____ __________ determimes the identity of an atom as an element
Temperature of a gas decreases, its volume increases if the pressure is held constant
What is NOT TRUE about gases
Atoms that are of the same element that differ in the number of particles in the nucleus
The following elements are in what group? Boron, silicon, and germanium
Trigonal planar geometry
The type of geometry where acetone CH2O has 3 bonding pairs of electrons arrayed around the central atom
Formula for sodium sulfate
Refers to a bonding situation in which electrons are shared by more than two atoms
Heat of Fusion
In the production of the metal part molten steel and its melting point is poured into a mold and allowed to solidify what quantities is involved in what process?
The _________ _______________ arrangement of atoms in a crystal that have the least empty space of any cubic arrangement
The first law of thermodynamics
Relates to change in internal energy to HEAT and WORK.
Dipole dipole force
Moderately strong force that exist between neighboring polar molecules due to the attraction of oppositely charged ends
Strongest intermolecular force affecting the element iodine
Dipole dipole force
Strongest intermolecular force affecting the compound dichloromethane
Weak force that exists between all molecules both polar and nonpolar due to the formation of instantaneous dipoles
Have no ordered arrangement or pattern for the particles that compose them
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