Latest Chemistry Final ACS Exam
2024/2025
# of e- equal - correct answers--the # of p+
#17 yellow packet, When it show's a picture before a reaction, and want's to know what
it looks like after the reaction...how do you know which one it is? - correct answers--It
will have the little one's leftover
Accuracy? - correct answers--Closeness of measurements to the TRUE VALUE of what
is being measured
Addition/Subtraction in regards to sig figs? - correct answers--Round numbers to the
least number of decimal places
Are zeros at the end of a number and to the right of the decimal significant? - correct
answers--Yep!
ex: 9.100 is 4 sig figs
Are zeros infront of non-zero digis significant? - correct answers--Nope!
ex: 0.0071 is only 2 sig figs
Atomic Mass Number? - correct answers--Number of protons and neutrons (number on
the left upper corner of the chemical symbol)
Atomic Mass? - correct answers--Number of protons in the nucleus (number on the left
bottom corner of the chemical symbol)
Avogadro's Number? - correct answers--6.022 x 10^23 particles = 1 mole
Calorimeter's are used to find? - correct answers--Specific heat capacity
Combination Reaction? - correct answers--A + B --> AB
Combustion Reaction? - correct answers--C + H + O --> H2O + CO2 always
Covalent bonding? - correct answers--Nonmetal and a nonmetal. Share electrons.
Dalton's Law of Partial Pressure? - correct answers--P total = P1 + P2 + P3 ...
Decomposition Reaction? - correct answers--AB --> A + B
, Do columns or rows in the Periodic Table have similar patterns? - correct answers--
Columns (the "groups") have repeating patterns?
Double Replacement Reaction? - correct answers--AB + CD --> AD + CB
Empirical Formula vs Molecular Formula? - correct answers--Molecular = the actual
number of atoms in a compound
Empirical = basic ratio, smallest whole numbers of atoms in a compound
Endothermic? - correct answers--Heat goes INTO system, aka q = +
Exothermic? - correct answers--Heat goes OUT of system, aka q = -
Graham's Law of Effusion? - correct answers--Rate A/Rate B = Square Root of Molar
Mass B/Molar Mass A
Heat? - correct answers--q=mcΔT
How do catalysts affect the rate of reaction? - correct answers--Catalysts lower the
Activation Energy, which puts each collision into correct orientation, and makes the
reaction "eaiser"
How do you calculate Activation Energy? - correct answers--Ea = E ac - E r
(Energy of activated complex - energy of reactants)
How do you calculate Percent Error? - correct answers--I experimental-accepted I
____________________ x 100
accepted value
How do you calculate ΔH from a graph? - correct answers--ΔH = E p - Er
(Energy of products - energy of reactants)
How do you determine polarity? - correct answers--Use the chart that has
electronegativity values, then subtract the elements in the compound from each other.
How do you know which gas is fastest? - correct answers--The lighter they are, the
faster they are...aka add together their masses, and see which one has the smallest
mass
How does concentration affect equilbrium? - correct answers--(1) If you add more
products, you add more reactants (aka shift left).
(2) If you add more reactants, you add more products (aka shift right).
(3) If you remove products, you make more products (aka shift right)
(4) If you remove reactants, you make more reactants (aka shift lef)
2024/2025
# of e- equal - correct answers--the # of p+
#17 yellow packet, When it show's a picture before a reaction, and want's to know what
it looks like after the reaction...how do you know which one it is? - correct answers--It
will have the little one's leftover
Accuracy? - correct answers--Closeness of measurements to the TRUE VALUE of what
is being measured
Addition/Subtraction in regards to sig figs? - correct answers--Round numbers to the
least number of decimal places
Are zeros at the end of a number and to the right of the decimal significant? - correct
answers--Yep!
ex: 9.100 is 4 sig figs
Are zeros infront of non-zero digis significant? - correct answers--Nope!
ex: 0.0071 is only 2 sig figs
Atomic Mass Number? - correct answers--Number of protons and neutrons (number on
the left upper corner of the chemical symbol)
Atomic Mass? - correct answers--Number of protons in the nucleus (number on the left
bottom corner of the chemical symbol)
Avogadro's Number? - correct answers--6.022 x 10^23 particles = 1 mole
Calorimeter's are used to find? - correct answers--Specific heat capacity
Combination Reaction? - correct answers--A + B --> AB
Combustion Reaction? - correct answers--C + H + O --> H2O + CO2 always
Covalent bonding? - correct answers--Nonmetal and a nonmetal. Share electrons.
Dalton's Law of Partial Pressure? - correct answers--P total = P1 + P2 + P3 ...
Decomposition Reaction? - correct answers--AB --> A + B
, Do columns or rows in the Periodic Table have similar patterns? - correct answers--
Columns (the "groups") have repeating patterns?
Double Replacement Reaction? - correct answers--AB + CD --> AD + CB
Empirical Formula vs Molecular Formula? - correct answers--Molecular = the actual
number of atoms in a compound
Empirical = basic ratio, smallest whole numbers of atoms in a compound
Endothermic? - correct answers--Heat goes INTO system, aka q = +
Exothermic? - correct answers--Heat goes OUT of system, aka q = -
Graham's Law of Effusion? - correct answers--Rate A/Rate B = Square Root of Molar
Mass B/Molar Mass A
Heat? - correct answers--q=mcΔT
How do catalysts affect the rate of reaction? - correct answers--Catalysts lower the
Activation Energy, which puts each collision into correct orientation, and makes the
reaction "eaiser"
How do you calculate Activation Energy? - correct answers--Ea = E ac - E r
(Energy of activated complex - energy of reactants)
How do you calculate Percent Error? - correct answers--I experimental-accepted I
____________________ x 100
accepted value
How do you calculate ΔH from a graph? - correct answers--ΔH = E p - Er
(Energy of products - energy of reactants)
How do you determine polarity? - correct answers--Use the chart that has
electronegativity values, then subtract the elements in the compound from each other.
How do you know which gas is fastest? - correct answers--The lighter they are, the
faster they are...aka add together their masses, and see which one has the smallest
mass
How does concentration affect equilbrium? - correct answers--(1) If you add more
products, you add more reactants (aka shift left).
(2) If you add more reactants, you add more products (aka shift right).
(3) If you remove products, you make more products (aka shift right)
(4) If you remove reactants, you make more reactants (aka shift lef)
