Organic Chemistry A&P Exam Questions
and Answers (Rated A+)
atom - ANSWER-basic unit of matter
proton - ANSWER-positively charged subatomic particle
electron - ANSWER-negatively charged subatomic particle; gives an element its
chemical properties
neutron - ANSWER-subatomic particle that has the same mass as a proton but no
electric charge
nucleus - ANSWER-the positively charged center of an atom
orbital - ANSWER-a region of space around the nucleus of an atom where an electron
is likely to be found
ion - ANSWER-atom that has a positive or negative charge
atomic mass - ANSWER-mass of an atom expressed in atomic mass units
atomic number - ANSWER-number of protons in the nucleus of an atom
isotope - ANSWER-atoms of the same element that have different numbers of neutrons
radioisotope - ANSWER-isotope that has an unstable nucleus and undergoes
radioactive decay
, compound - ANSWER-substance formed by chemical union of two or more elements in
definite proportions
molecule - ANSWER-smallest unit of most compounds
ionic bond - ANSWER-bond formed when one or more electrons are transferred from
one atom to another
covalent bond - ANSWER-a bond formed when atoms share one or more pairs of
electrons
reactant - ANSWER-element or compound that enters into a chemical reaction
substrate - ANSWER-reactant of an enzyme-catalyzed reaction
product - ANSWER-a chemical substance formed as a result of a chemical reaction
potential energy - ANSWER-stored energy
kinetic energy - ANSWER-energy of motion
activation energy - ANSWER-minimum amount of energy required to start a chemical
reaction
decomposition reaction - ANSWER-reaction in which one compound breaks into at least
two products
catabolism - ANSWER-breakdown of more complex substances into simpler ones
synthesis reaction - ANSWER-reaction in which two or more substances combine to
form a single compound
and Answers (Rated A+)
atom - ANSWER-basic unit of matter
proton - ANSWER-positively charged subatomic particle
electron - ANSWER-negatively charged subatomic particle; gives an element its
chemical properties
neutron - ANSWER-subatomic particle that has the same mass as a proton but no
electric charge
nucleus - ANSWER-the positively charged center of an atom
orbital - ANSWER-a region of space around the nucleus of an atom where an electron
is likely to be found
ion - ANSWER-atom that has a positive or negative charge
atomic mass - ANSWER-mass of an atom expressed in atomic mass units
atomic number - ANSWER-number of protons in the nucleus of an atom
isotope - ANSWER-atoms of the same element that have different numbers of neutrons
radioisotope - ANSWER-isotope that has an unstable nucleus and undergoes
radioactive decay
, compound - ANSWER-substance formed by chemical union of two or more elements in
definite proportions
molecule - ANSWER-smallest unit of most compounds
ionic bond - ANSWER-bond formed when one or more electrons are transferred from
one atom to another
covalent bond - ANSWER-a bond formed when atoms share one or more pairs of
electrons
reactant - ANSWER-element or compound that enters into a chemical reaction
substrate - ANSWER-reactant of an enzyme-catalyzed reaction
product - ANSWER-a chemical substance formed as a result of a chemical reaction
potential energy - ANSWER-stored energy
kinetic energy - ANSWER-energy of motion
activation energy - ANSWER-minimum amount of energy required to start a chemical
reaction
decomposition reaction - ANSWER-reaction in which one compound breaks into at least
two products
catabolism - ANSWER-breakdown of more complex substances into simpler ones
synthesis reaction - ANSWER-reaction in which two or more substances combine to
form a single compound
