IB Chemistry SL
accuracy - ANS - refers to how close the reading is to the true value
\acid - ANS - a substance which produces hydrogen ions
\activation energy - ANS - the minimum amount of energy required for a reaction
to occur
\amphoteric - ANS - substance that can be either acidic of basic.
\anion - ANS - negative ion. contain more electrons than protons so it is larger
than the parent atom.
\atom - ANS - smallest part of an element.
\atomic number - ANS - equal to the number of protons in the nucleus and to the
number of electrons in the atom
\atomic radius - ANS - the distance from the nucleus to the outermost electron
\average bond enthalpy - ANS - can only be measured if products and reactants
are in a gaseous state.
\base - ANS - a substance than can neutralize an acid
\Bronsted-Lowry Acid - ANS - substance that donates a proton
\Bronsted-Lowry Base - ANS - susbtance that accepts a proton
\cation - ANS - positive ion. contain fewer electrons than protons so the
electrostatic attraction between the nucleus and the outermost electron is greater
and ion is smaller than the parent atom.
\closed system - ANS - a system in which neither matter nor energy can be lost or
gained
\collision theory - ANS - for a reaction to occur, the particles must collide, they
must collide with the proper orientation, and they must collide with enough force
to bring about the reaction.
\compound - ANS - substance that contains more than one element.
\concentrated - ANS - a high number of moles of solute per litre of solution
\concentration - ANS - the amount of solute (dissolved substance) in a known
volume of solution (solute plus solvent).
\corrosive - ANS - chemically reactive
\Covalent bond - ANS - involves the sharing of one or more pairs of electrons so
that each atom in the molecule achieves an inert gas configuration.
\dilute - ANS - a low number of moles of solute per litre of solution
\electrolytic cell - ANS - a device that is used to make non-spontaneous redox
reactions occur by providing energy in the form of electricity from an external
source
accuracy - ANS - refers to how close the reading is to the true value
\acid - ANS - a substance which produces hydrogen ions
\activation energy - ANS - the minimum amount of energy required for a reaction
to occur
\amphoteric - ANS - substance that can be either acidic of basic.
\anion - ANS - negative ion. contain more electrons than protons so it is larger
than the parent atom.
\atom - ANS - smallest part of an element.
\atomic number - ANS - equal to the number of protons in the nucleus and to the
number of electrons in the atom
\atomic radius - ANS - the distance from the nucleus to the outermost electron
\average bond enthalpy - ANS - can only be measured if products and reactants
are in a gaseous state.
\base - ANS - a substance than can neutralize an acid
\Bronsted-Lowry Acid - ANS - substance that donates a proton
\Bronsted-Lowry Base - ANS - susbtance that accepts a proton
\cation - ANS - positive ion. contain fewer electrons than protons so the
electrostatic attraction between the nucleus and the outermost electron is greater
and ion is smaller than the parent atom.
\closed system - ANS - a system in which neither matter nor energy can be lost or
gained
\collision theory - ANS - for a reaction to occur, the particles must collide, they
must collide with the proper orientation, and they must collide with enough force
to bring about the reaction.
\compound - ANS - substance that contains more than one element.
\concentrated - ANS - a high number of moles of solute per litre of solution
\concentration - ANS - the amount of solute (dissolved substance) in a known
volume of solution (solute plus solvent).
\corrosive - ANS - chemically reactive
\Covalent bond - ANS - involves the sharing of one or more pairs of electrons so
that each atom in the molecule achieves an inert gas configuration.
\dilute - ANS - a low number of moles of solute per litre of solution
\electrolytic cell - ANS - a device that is used to make non-spontaneous redox
reactions occur by providing energy in the form of electricity from an external
source
