Chapters and 55 Flashcards

Terms Definitions
overall order
Name SCl2:
sulfur dichloride
Is HCl a base?
partial pressure
kp = kc((RT)^Δn)
Alkaline Metals
Group 1A conduct electricity
Ionic or Molecular? -- MgO
Homogeneous or Heterogeneous? --- granite
Ionic or Molecular? -- HCl
zero order Half-life
t(1/2) = [A]o/2k
Chemical Reaction
process of rearranging, removing, replacing, or adding atoms to produce new substances
very close to the actual value
Metal, Nonmetal, or Semimetal? -- Kr
Symbol for the following element: xenon
Metal, Nonmetal, or Metalloid? -- neon
Halogens, Alkali Metals, Alkaline Earth Metals, or Noble Gases? -- K
Alkali Metals
Ionic or Molecular Compound? -- KMnO4
Compute 1240.64/12.5 and round the answer appropriately:
Element, Compound, or Mixture? --- salt, NaCl
Element, Compound, or Mixture? --- argon, Ar
Element, Compound, or Mixture? --- carbon monoxide, CO
Intensive Properties or Extensive Properties? -- Gold has a density of 19.3 g/mL:
Intensive Property
What is the PDR?
Physicians' Desk Reference
Increase in temperature
exothermic rx: k decreases
endothermic rx: k increases
mendeleev attempted to organize the chemical elements based on their
Octet Rule
8 valence electrons
atoms gain, lose or share electrons to attain 8 valence electrons
summary of a large quantity of information
Quartz, contains one silicon atom and two oxygen atoms per formula unit. What is the chemical formula for quartz?
Period 1,2,3,4,5,6 or 7? -- Sr
Period 5
Physical Change or Chemical Reaction? -- Carbon dioxide is produced by the combustion of gasoline in an automobile engine:
Chemical Reaction
How many significant figures? 0.03 mm
Protons and neutrons have charges of the same magnitude but opposite sign:
An agent or measure that relieves symptoms
Decrease concentration of reactant(s)
equilibrium shifts to left
Atoms are ____ when they combine
more stable
what are the radioactive elements with atomic numbers from 90 to 103 in the periodic table called?
Specific Gravity
no units
-comparing to the density of water
What is the empirical formula for the compound P4O6?
Give the systematic name for the compound Fe2(SO4)3
iron(III) sulfate
Determine the number of moles of oxygen atoms in: 2.18 mol N2O
2.18 mol
Protons have about the same mass as neutrons:
An unpredictable effect that is not related to the main action of the drug
Side effect
rate law
expresses the relationship of the rate of a reaction to the rate constant and the concentrations of the reactants raised to some powers
the change in concentration of A over time period Δt; because [A] decreases with time, Δ[A] is negative.
the region outside the nucleus where an electron can most probably be found is the
electron cloud
the branch of chemistry that is concerned with the identification and composition of materials is
analytical chemistry
The ratio of sulfur to oxygen by mass in SO2 is 1.0:1.0 -- Find the ratio of sulfur to oxygen by mass in SO3
What is the name for the compound CCl4?
carbon tetrachloride
96/42 Mo .. Protons and neutrons?
42 protons; 54 neutrons
Calculate the mass (in grams) for: 3.2 x 10^22 H2O molecules
0.96 g
What is the name of the covalent compound CCl4?
carbon tetrachloride
If "Br" were to form ions, it would attain the same number of electrons as which noble gas?
Name 3 Schedule III drugs
nalorphine, combos of amobarbital, secobarbital or pentobarbital w/other active ingredients, compounds w/limited concentrations of codeine, opium or morphine
Laws of the rate
rate laws are always determined experimentally; reaction order is always defined in terms of reactant (not product) concentrations; the order of a reactant is not related to the stoichiometric coefficient of the reactant in the balanced chemical equation.
Reaction Rate
the change in the concentration of a reactant or a product with time (M/s)
Properties of ionic bonding:
In ionic bonding, the valance electrons of a metal are transferred to a nonmetal.

Occur between a metal and a non-metal.
what is mass?
is a measurement that reflects the amount of matter.
what are the elements with atomic numbers from 58 to 71 in the periodic table called?
the lathanide elements
Calculate the mass, in grams, of: 1.4 x 10^23 lead atoms
48 g
Calculate the mass (in grams) for: 5.56 x 10^20 SO3 molecules
7.39 x 10^-2 g
You wash dishes for a chem. lab to make extra money for laundry. You earn 6 dollars/hour, and each shift lasts 75 minutes. Your laundry requires 6 quarters/load. --- How many loads of laundry can you wash if you work 3 shifts?
15 loads
What are some examples of colloids?
Milk, whipped cream, blood plasma.
example of percent error....
percent error = error/accepted value X 100
The rest of chapters 1-3 did not save, i AM REFUSING to do them for a 5th time. That would mean ive typed 180 questions. I dont care anymore.
MY bad.
When iron rusts, solid iron reacts with gaseous oxygen to form solid iron(III) oxide. Write a balanced chemical equation for this reaction.
4Fe(s) + 3O2(g) --> 2Fe2O3(s)
Periodic Table -- Group 2A (tendency and charge):
LOSES two electrons; +2 charge
Zero order reactions
k = M/s or M(s^-1)
[A] = [A]o - kt
What are the properties of non-electrolytes.
They dissolve as molecules in water.

They do not produce ions in water.

They do not conduct an electric current.
because excited hydrogen atoms always produce the same line-emission spectrum, scientists concluded that hydrogen
released photons of only certain energies.
Group 1 (name and properties)
Alkali Metals .. React to form 1+ ions.
What are the properties of noble gases?
Group 8A.
Quite nonreactive & are seldom found in combinations with other elements.
what is weight?
is a measure not only of the amount of matter but also of the effect of Earth's gravitational pull on the matter.
What is Henry's Law?
The solubility of a gas in a liquid is directly related to the pressure of that class above the liquid.
How can you determine whether a molecule has polar or non-polar bonds?
Polar bonds have dipoles which do not cancel whereas non-polar bonds do cancel.
What is equal to 5 x 10^10?
0.5 x 10^11 ... 50 x 10^9 ... 500 x 10^8
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