IB Chemistry SL EXAM, comprehensive questions and verified
answers QUESTIONS WITH ACCURATE ANSWERS | GET IT RIGHT
|2025\2026!
Relative atomic mass (Ar) - (ANSWERS)weighted mean of all the naturally
occurring isotopes of the element (g/mol)
Relative molar mass (Mr) - (ANSWERS)sum of Ar (no units)
Mole - (ANSWERS)6.02x10^-23
Empirical Formula - (ANSWERS)shows the simplest whole number ratio of
atoms of each element in a particular substance
Molecular Formula - (ANSWERS)shows the actual number of atoms of
each element in a particular molecule or substance
Structural formula - (ANSWERS)shows the arrangement of atoms and
bonds within a molecule
Stoichiometry - (ANSWERS)the fixed relationship between the reactants
and products of the reaction
,IB Chemistry SL EXAM, comprehensive questions and verified
answers QUESTIONS WITH ACCURATE ANSWERS | GET IT RIGHT
|2025\2026!
State symbols: (s), (l), (g), (aq) - (ANSWERS)shows the physical state of
reactants and products: solid, liquid, gas, aqueous
Symbol for reactions where both the reactants and the products are present
in an equilibrium mixture - (ANSWERS)
Molar ratio - (ANSWERS)given by the coefficients, it is the ratio of the
amounts of reactants and products
Density - (ANSWERS)mass/volume (g/cm^3)
Solute - (ANSWERS)dissolved substance
Solution - (ANSWERS)a transparent, homogenous mixture; solute+solvent
Concentration - (ANSWERS)amount of solute in a known volume of
solvent (mol/dm^3)
Ideal gas equation - (ANSWERS)PV=nrt
,IB Chemistry SL EXAM, comprehensive questions and verified
answers QUESTIONS WITH ACCURATE ANSWERS | GET IT RIGHT
|2025\2026!
N - (ANSWERS)symbol for number of moles
R - (ANSWERS)the gas constant= 8.314 J/K mol
Electromagnetic radiation - (ANSWERS)Includes visible light, radio waves,
IR, ultraviolet
Electromagnetic spectrum - (ANSWERS)Spectrum of wavelengths that
comprise the various types of electromagnetic radiation.
Continuous spectrum - (ANSWERS)Spectrum that shows all wavelengths
of the section of the spectrum used (eg visible or UV, or ...)
Line spectrum - (ANSWERS)a spectrum showing only certain discrete
wavelengths
Photon - (ANSWERS)A particle of electromagnetic radiation with no mass
that carries a quantum of energy
, IB Chemistry SL EXAM, comprehensive questions and verified
answers QUESTIONS WITH ACCURATE ANSWERS | GET IT RIGHT
|2025\2026!
Ideal gas - (ANSWERS)an imaginary or perfect subtance whose particles
are infinitely small and do not interact with each other
Avogadro's law - (ANSWERS)equal volumes of different gasses at the
same temperature and pressure contain the same number of moles
Atom economy - (ANSWERS)A measure of the amount of starting
materials that end up as useful products
(mass of desired product/mass of total product)*100=%
Nucleon - (ANSWERS)collective term for protons and neutrons
A - (ANSWERS)symbol for mass number
Atomic number - (ANSWERS)equal to the number of protons in the
nucleus (and to the number of electrons if atom (neutral))
Mass number - (ANSWERS)# of protons + # neutrons
answers QUESTIONS WITH ACCURATE ANSWERS | GET IT RIGHT
|2025\2026!
Relative atomic mass (Ar) - (ANSWERS)weighted mean of all the naturally
occurring isotopes of the element (g/mol)
Relative molar mass (Mr) - (ANSWERS)sum of Ar (no units)
Mole - (ANSWERS)6.02x10^-23
Empirical Formula - (ANSWERS)shows the simplest whole number ratio of
atoms of each element in a particular substance
Molecular Formula - (ANSWERS)shows the actual number of atoms of
each element in a particular molecule or substance
Structural formula - (ANSWERS)shows the arrangement of atoms and
bonds within a molecule
Stoichiometry - (ANSWERS)the fixed relationship between the reactants
and products of the reaction
,IB Chemistry SL EXAM, comprehensive questions and verified
answers QUESTIONS WITH ACCURATE ANSWERS | GET IT RIGHT
|2025\2026!
State symbols: (s), (l), (g), (aq) - (ANSWERS)shows the physical state of
reactants and products: solid, liquid, gas, aqueous
Symbol for reactions where both the reactants and the products are present
in an equilibrium mixture - (ANSWERS)
Molar ratio - (ANSWERS)given by the coefficients, it is the ratio of the
amounts of reactants and products
Density - (ANSWERS)mass/volume (g/cm^3)
Solute - (ANSWERS)dissolved substance
Solution - (ANSWERS)a transparent, homogenous mixture; solute+solvent
Concentration - (ANSWERS)amount of solute in a known volume of
solvent (mol/dm^3)
Ideal gas equation - (ANSWERS)PV=nrt
,IB Chemistry SL EXAM, comprehensive questions and verified
answers QUESTIONS WITH ACCURATE ANSWERS | GET IT RIGHT
|2025\2026!
N - (ANSWERS)symbol for number of moles
R - (ANSWERS)the gas constant= 8.314 J/K mol
Electromagnetic radiation - (ANSWERS)Includes visible light, radio waves,
IR, ultraviolet
Electromagnetic spectrum - (ANSWERS)Spectrum of wavelengths that
comprise the various types of electromagnetic radiation.
Continuous spectrum - (ANSWERS)Spectrum that shows all wavelengths
of the section of the spectrum used (eg visible or UV, or ...)
Line spectrum - (ANSWERS)a spectrum showing only certain discrete
wavelengths
Photon - (ANSWERS)A particle of electromagnetic radiation with no mass
that carries a quantum of energy
, IB Chemistry SL EXAM, comprehensive questions and verified
answers QUESTIONS WITH ACCURATE ANSWERS | GET IT RIGHT
|2025\2026!
Ideal gas - (ANSWERS)an imaginary or perfect subtance whose particles
are infinitely small and do not interact with each other
Avogadro's law - (ANSWERS)equal volumes of different gasses at the
same temperature and pressure contain the same number of moles
Atom economy - (ANSWERS)A measure of the amount of starting
materials that end up as useful products
(mass of desired product/mass of total product)*100=%
Nucleon - (ANSWERS)collective term for protons and neutrons
A - (ANSWERS)symbol for mass number
Atomic number - (ANSWERS)equal to the number of protons in the
nucleus (and to the number of electrons if atom (neutral))
Mass number - (ANSWERS)# of protons + # neutrons
