VOCABULARY LATEST EXAM 2025 WITH MULTIPLE
CHOICE OF QUESTIONS AND DETAILED CORRECT
ANSWERS ALREADY GRADED A+ AND 100%
GUARANTEE PASS (BRAND NEW!!!!!!!)
Addition reaction - CORRECT ANSWER-The reaction in which a double bond
opens to form two additional single bonds.
Adhesive force - CORRECT ANSWER-The attractive force between two
dissimilar substances
Alcohol - CORRECT ANSWER-An organic compound with an -OH group
Aldehyde - CORRECT ANSWER-An organic compound with a terminal -CHO
group
Alkali metals - CORRECT ANSWER-The extremely reactive elements in the first
group (column) of the periodic table. They all have ns1 electrons as valence
electrons.
Alkaline earth metals - CORRECT ANSWER-The very reactive elements in the
second group (column) of the periodic table. They all have ns2 electrons as
valence electrons.
,Alkanes - CORRECT ANSWER-Organic compounds with the general formula
CnH2n+2
Alkenes - CORRECT ANSWER-Organic compounds with double bonds in their
structures
Alkyl group - CORRECT ANSWER-A functional group that is Alkane in nature
Alkynes - CORRECT ANSWER-Organic compounds with triple bonds in their
structures
Allotrope - CORRECT ANSWER-One or more distinct forms of an element;
classification as an allotrope is based on structure and physical properties,
e.g diamond and graphite are two allotropes of carbon
Alpha particle - CORRECT ANSWER-A helium nucleus
Amines - CORRECT ANSWER-Compounds, related to ammonia, in which one
or more of the hydrogen atoms in ammonia have been replaces by organic
functional groups
Amino acid - CORRECT ANSWER-An organic acid that contains both an amine
and an acid functional group on adjacent carbon atoms
Amorphous - CORRECT ANSWER-A term meaning without structure
,Amphiprotic - CORRECT ANSWER-A term describing a substance that can
donate a proton and accept a proton
Amphoteric - CORRECT ANSWER-A term describing a substance that can act as
an acid or as a base
Anhydride - CORRECT ANSWER-The oxide of a metal or nonmetal that reacts
with water to form a acid or a base, respectively
Anion - CORRECT ANSWER-An ion with a negative charge
Aqueous - CORRECT ANSWER-A term designating a system that involves water
or a chemical mixture or solution having water as the solvent
Arrhenius equation - CORRECT ANSWER-The equation that relates
temperature to rate constant. K=Ae_Ea/RT.
Arrhenius theory - CORRECT ANSWER-The theory that an acid increases
hydrogen ion concentration when dissolved and that a base increase
hydroxide ion concentration when dissolved
Aryl group - CORRECT ANSWER-A functional group that is aromatic in nature
Atom - CORRECT ANSWER-A fundamental particle of chemistry. At present,
109 atoms are known and are arranged in an orderly manner in the
periodic table.
, Atomic mass, A - CORRECT ANSWER-The relative mass of an element as
compared to the mass of the isotope C-12, which is defined as exactly 12
Atomic number, Z - CORRECT ANSWER-The number of an element in the
periodic table; also, a number representing the number of protons in the
nucleus of an atom.
Atomic orbital - CORRECT ANSWER-The orbital structure of an element; also,
an orbital within an element.
Atomic symbol - CORRECT ANSWER-A one or two letter abbreviation of an
elements name. Some symbols (Pb for lead) are derived from Latin names
of the elements.
Autopyrolysis constant of water, Kw - CORRECT ANSWER-The value of the
equilibrium expression for the dissociation of water into H+ and OH_
Avogadro's number - CORRECT ANSWER-A quantity equal to 6.022 X 10^23
Avogadro's principle - CORRECT ANSWER-A statement of the direct
relationship between the moles of a gas and the volume of that gas.
Axial atom - CORRECT ANSWER-A term used to describe the position of an
atom in a covalent molecule of the AX5 or AX6 basic structure. The axial
atom are on the vertical axis of the molecule in positions similar to the
Earth's North and South Poles.