Chapter 2: Organic Chemistry Flashcards
What is the definition of organic chemistry?
The study of the structure, properties, composition, reactions, and preparation of carbon-containing compounds.
True or False: Organic chemistry only deals with compounds containing carbon.
True
What type of bond holds carbon atoms together in organic compounds?
Covalent bond
What is the process called when a molecule loses a water molecule?
Dehydration reaction
What is the process called when a molecule gains a water molecule?
Hydration reaction
What is the name of the reaction where a double bond in an alkene is converted to a single bond with the addition of hydrogen?
Hydrogenation
What is the process called when a large molecule is broken down into smaller molecules by the addition of water?
Hydrolysis
What is the process called when two molecules combine to form a larger molecule and a smaller molecule is eliminated?
Condensation reaction
What is the name of the reaction where an alcohol reacts with a carboxylic acid to form an ester and water?
Esterification
What is the name of the reaction where a larger molecule is broken down into smaller molecules by the addition of water?
Hydrolysis
What is the name of the reaction where an alkyl halide reacts with a nucleophile to form a new carbon-nucleophile bond?
Nucleophilic substitution
What is the name of the reaction where two molecules combine to form a larger molecule with the elimination of a small molecule?
Condensation reaction
What is the name of the reaction where a molecule is oxidized by the loss of hydrogen?
Oxidation
What is the name of the reaction where a molecule is reduced by the gain of hydrogen?
Reduction
Has mass and occupy space
Matter
Smallest unit of an element
Atom
Protons, neutrons and electrons
Components of an atom
What is at the center of an atom
Nucleus
Nucleus consists of…
Proton (positive charge/1amu and neutron (neutral charge/1amu(
Amu
Atomic mass unit
What can cancel out a positive charge in a proton
Electron (0 amu)
What balances protons
Electrons (e)
Outermost electron shell
Valence Shell
Pure substance that consists only of atoms with same number of protons
Element
True or false: The number of protons determine what you’re looking at
True
Top four organic elements found in a living organism
“HONC”: hydrogen, oxygen, nitrogen, carbon
Red group of periodic table
Alkaline metals
Orange group of periodic table
Alkaline earth metals
Yellow portion of periodic table
Transition metals (10 rows)
Purple portion of periodic table
Noble gas
Light purple portion of periodic table
Halogen
Blue portion of periodic table
Four gases: hydrogen oxygen nitrogen carbon (HONC)
True or false: elements are grouped by the number of valence electrons which determines the chemical properties of the element
True
Average number of mass of protons plus neutrons allowing for relative abundances of different isotypes
Atomic mass
Forms of an element that have equal number of protons and electrons but different in number of neutrons
Isotypes
True or false: atomic mass changes but not the chemical properties nor the charge
True
Time it takes for 1/2 of atoms in a sample decay
Half life
Molecules with same molecular formula but different chemical structures
Isomers
When number of electrons change there is an overall charge to the atoms creating ions. This is called:
Ion (unevenly charged particles)
More protons than electrons that equal negative positive charge
Cations
Fewer protons than electrons that net negative charge
Anions
True or false: nucleus consists of protons and neutrons
True
This has a positive charge and mass of 1 AMU
Proton )subatomic particle)
This has no charge and a mass of 1 AMU
Neutron s (subatomic particle)
Contain electrons that orbit the nucleus & lower electron shells fill first
Electron shells
This has a negative charge and 1/2000 the mass of a proton (0 amu)
Electrons
What are the molecules with the same molecular formula but different chemical structures?
Isomers
What are the forms of an element that have equal number of protons and electrons but different in the number of neutrons?
ISO types
What are the forms of an element that have unequal number of electrons?
Ion s
What is an atom called if there are more protons than electrons?
Cation
What is the atom called if there are less protons and electrons?
Anion
This forms molecules via the complete transfer or sharing of electrons in a manner to complete or fill the outer electron shell
Chemical bonds
Complete transfer of an electron creates a strong attraction between ions of opposite charge
Ionic bond
Two atoms sharing electrons
Covalent bond
Attraction between particle charges on polar molecules
Hydrogen bond
This is a very weak bond individually but very powerful collectively
Hydrogen bond
Formed by attraction of oppositely charged ions
Ionic bond (is. Table salt)
These are when Atoms share two or more valence electrons in order to satisfy the octet rule
Covalent bonds
True or false: The strength of the covalent bond depends on the number of shared electrons?
True
Equal sharing of balance electrons based on equal electronegativity of the two atoms
Nonpolar covalent bonds (ie, twins)
Unequal sharing of electrons, inert, based on differing electronegativity of two atoms
Polar covalent bonds
Within a water molecule, the covalent bonds between the O2 atoms and hydrogen atoms are highly polar
Water
True or false: 02 is much more electronegative than hydrogen
True
This forms between the partial negative charge of an O2 atom from one molecule of water and the partial positive charge of a hydrogen atom from a nearby molecule of water
Hydrogen
True or false: Life is in extricably tied to water
True
True or false: The single most outstanding chemical property of water is its ability to form hydrogen bonds
True
True or false: hydrogen bonds are responsible for the amazing properties of water that tie it so closely to life
True
What are the two properties of hydrogen bonds?
Cohesion and adhesion
What is an example of cohesion?
Dew on a plant. (allows bugs to walk on water)
What is an example of adhesion?
When water molecules form an attachment to environment it is next to
What are the 7 properties of water?
High specific heat, high heat of vaporization, less dense solid form, good polar solvent, increased surface tension, organizes non-polar molecules, forms ions
Requires large amount of energy to change temperature of water
High specific heat
Evaporation of water from a surface causing cooling of the surface (sweating)
High heat of vaporization
Ice floats in water, example
Less dense solid form
Water dissolves polar molecules and brings them into solution
Good polar solvent
True or false: good polar solvent is the key to how our blood chemistry works
True