Shared Flashcard Set

Details

CHM1025
Midterm Exam (Melanie Veige)
74
Chemistry
Undergraduate 1
02/12/2013

Additional Chemistry Flashcards

 


 

Cards

Term
Base name for hydrocarbon with 1 C atom
" " 2-10 C atoms
Definition
1 meth 2 eth 3 prop 4 but 5 pent 6 hex 7 hept 8 oct 9 non 10 dec
Term
Suffix for single-bonded hydrocarbons
Definition
(alk)ane
Term
Suffix for double-bonded hydrocarbons
(at least one double-bond)
Definition
(alk)ene
Term
Suffix for triple-bonded hydrocarbons
(at least one triple-bond)
Definition
(alk)yne
Term
In its compounds, carbon always forms ____ bond(s).
Definition
four
Term
Organic compounds can be characterized into two types:
Definition
hydrocarbons and functionalized hydrocarbons
Term
Hydrocarbons are organic compounds that contain
Definition
only carbon and hydrogen
(compose common fuels such as oil, gasoline, liquid propane gas, and natural gas)
Term
Functionalized hydrocarbons can be thoguht of as
Definition
hydrocarbons in which a functional group -- a characteristic atom or group of atoms -- is incorporated into the hydrocarbon
Term
Organic compounds with an -OH functional group
Definition
alcohols
Term
A group of organic compounds with the same functinal group forms
Definition
a family
Term
The addition of a functional group to a hydrocarbon (alters/doesn't alter) the properties of the compound.
Definition
alters
(significantly)
Term
The general formula for functional hydrocarbons uses the letter "R" to denote
Definition
the hydrocarbon (R) group
Term
Name endings for families:
Alcohols
Ethers
Aldehydes
Ketones
Carboxylic acids
Esters
Amines
Definition
-ol
ehter
-al
-one
acid
-ate
amine
Term
The addition of a functional group to a hydrocarbon (alters/doesn't alter) the properties of the compound.
Definition
alters
(significantly)
Term
Chemical equations are balanced when
Definition
the number of each type of atom on the left side equals the number on the right
Term
Elements that form ions with predictable negative charges
Definition
[image]
Term
Elements that form ions with predictable positive charges
Definition
[image]
Term
Nonelectrolytes dissolve as (intact molecules / ions) and are considered (electrolytes / nonelectrolytes).
Definition
intact molecules
nonelectrolytes
Term
Acids are molecular compounds that ______ in water
Definition
ionize (dissociate into ions)
Term
Strong acids (completely / incompletely) ionize in solution and are therefore (strong / weak) electrolyes
Definition
completely
strong
Term
An aqueous solution of a weak acid would be composed mostly of (ionized / nonionized) acid
Definition
nonionized
(only a small percentage of weak acid molecules ionize)
Term
Partial ionization of a weak acid in solution is represented in a chemical equation by
Definition
opposing half arrows
Term
Water is only produced in neutralization reactions that involve a
Definition
strong base
Term
Bases that do not contain OH usually contain
Definition
N
Term
Common name for NH3
Definition
Ammonia (weak base)

NH3 + H2O <==> NH4 + OH
Term
Most salts containing alkali metal or ammonium (NH4+) cations are (soluble/insoluble)
Definition
soluble
Term
A series of similar observations can lead to the development of a(n)
Definition
scientific law (summarizes past observations and predicts future ones)
Term
A ______________ is a model for the way nature is and explains not merely what nature does but why.
Definition
scientific theory

(John Dalton's atomic theory explained Lavoisier's law of conservation of mass)
Term
Three states of matter are
Definition
solid, liquid, and gas
Term
Solid matter may be __________ or __________.
Definition
crystalline (salt/diamond);
amorphous (glass/plastic)
Term
Divisions of Classification of Matter (flowchart)
Definition
[image]
Term
A substance composed of two or more elements in fixed, definite proportions is a(n)
Definition
compound
Term
Chemical properties include
Definition
corrosiveness, flammability, acidity, toxicity, etc. (composition is changed to exhibit these properties)
Term
Physical properties include
Definition
color, taste, odor, appearance, melting point, boiling point, density, etc. (composition is not changed to exhibit these properties)
Term
Action of a force through a distance =
Definition
work
Term
The capacity to do work =
Definition
energy
Term
"Energy is neither created nor destroyed" is a scientific _______.
Definition
law (principle)
Term
Alcohol's ability to mix with water is a ______ property
Definition
physical (mixing doesn't involve making/breaking chem bonds)
Term
"Other nonmetals" on period table =
Definition
C H O N P S Se
Term
Halogens on periodic table =
Definition
F Cl Br I At (Column 17)
Term
Noble gases on period table =
Definition
He Ne Ar Kr Xe Rn (Column 18)
Term
John Dalton's Atomic Theory (4 parts)
Definition
1) Elements are made up of tiny, indestructible particles called atoms
2) Atoms of the same element have the same mass and distinguishing properties
3) Atoms combine in small whole-number ratios to form compounds
4) Atoms of one element cannot change into atoms of another element (chm rxns only change the way atoms are bound)
Term
Negatively charged, low mass particle present in all atoms (discovered by JJ Thomson w/ cathode ray) =
Definition
electron (2000 times less massive than H)
Term
Millikan's Oil Drop Experiment determined
Definition
the mass of a single electron (9.1 x 10^-28 g)
Term
Thomson's Cathode Ray Experiment determined
Definition
charge/mass ratio of electrons (-1.76 x 10^8 coulombs per gram)
Term
Rutherford's Nuclear Theory of the Atom (3 parts)
Definition
1) Most of an atom's mass and all of its positive charge are located inside the nucleus
2) Most volume of atom is empty space with tiny negative electrons dispersed
3) There are as many positively charged particles (protons) as there are electrons (making atoms charge-neutral)
Term
The mass of a neutron is similar to that of a ______.
Definition
proton
Term
Charge of proton =
Charge of electron =
Charge of neutron =
Definition
positive
negative
neutral
Term
Location of proton =
Location of electron =
Location of neutron =
Definition
nucleus
electron cloud
nucleus
Term
If an atom is charge-neutral, # of ______ = # of _______.
Definition
protons / electrons
Term
99.9% of an atom's mass is in
Definition
the nucleus (protons and neutrons)
Term
Mass of proton = ____ amu
Mass of neutron = ____ amu
Mass of electron = ____ amu
Definition
Mass of proton ~ 1 amu (baseball)
Mass of neutron ~ 1 amu (baseball)
Mass of electron ~ .00055 amu (rice grain)
Term
Atomic number (Z)=
Definition
# of protons (defines element)
Term
Isotopes = when # of _______ varies
Definition
neutrons
Term
Mass # (A)= # of _____________
Definition
# of protons + # of neutrons
Term
Mass number differs between atoms with a different number of _________, known as ________ of that element.
Definition
neutrons, isotopes
Term
Ions have lost or gained _________.
Definition
electrons
Term
Positively charged ions = _______ = (lost/gained) electron
Definition
cations ; lost
Term
Main group metals tend to ____ electrons
Definition
lose
Term
Main group nonmetals tend to ____ electrons
Definition
gain
Term
Atomic mass = (def)
Definition
average mass of an element (weighted according to natural abundance of each isotope)
Term
Ionic bonds occur between __________ and involve the _______ of electrons
Definition
metals and nonmetals
transfer
***attraction comes from difference in charges after electron transfer***
Term
Covalent bonds occur between _________ and involve the _________ of electrons
Definition
two or more nonmetals
sharing
Term
T/F
Elements may be either atomic or molecular
Definition
True (2 or more atoms of the element bonded together)
H2 N2 Cl2 O2 P4 S8
Term
Molecular compounds are usually composed of two or more ______-bonded ____________
Definition
covalently bonded
nonmetals
(CO2 C3H8)
Term
________ are ionic compounds that have a specific number of water moelcules associated with each forumula unit
Definition
Hydrates
Term
Prefixes 1-10 for naming molecular compounds
Definition
1 mono 2 di 3 tri 4 tetra 5 penta 6 hexa 7 hepta 8 octa 9 nona 10 deca
Term
Acids are (molecular/ionic) compounds
Definition
Molecular
[H (nonmetal) is usually first, then one or more nonmetals]
Term
Acids can be divided into two categories:
Definition
binary acids and oxyacids
Term
Oxyacids contain hydrogen and ________
Definition
an oxyanion

nitric acid HNO3 (ate=ic)
sulfurous acid SO3 (ite=ous)
Term
Binary acids contain hydrogen and _______
Definition
a nonmetal

hydrochloric acid HCl
hydrobromic acid HBr
Term
Oxyanion:
Definition
an anion containing a nonmetal and oxygen (nitrate, chlorate, sulfite, etc)
Term
Which of the following require prefixes for their names?
Molecular Compounds
Ionic Compounds
Acids
Definition
Molecular Compounds
(Ionic compounds DO NOT require prefixes)
Term
A group of organic compounds with the same __________ _____ form a ______
Definition
functional group
family
(methanol, isopropyl alcohol)
Supporting users have an ad free experience!