CHM 113 Final Exam Questions with Verified Solutions Graded A+
Which of the following is NOT a compound? - Answers O2, oxygen is a molecule
What is the chemical symbol for the element, copper? - Answers Cu
Which property is a chemical property - Answers flammability
Which of the following mixtures is heterogeneous? - Answers granite
Which of the following processes is/are physical changes? Select all that apply - Answers water
evaporating, tearing a piece of aluminum in half
Which unit is NOT an SI base unit? - Answers celcius
Which metric prefix means 10^-9 - Answers nano
Which of the following measurements has three significant figures? - Answers .00871 m3
An Olympic-sized swimming pool can hold approximately 6.60 x 105 gallons of water. Calculate
the volume of the water in cubic meters (m3). Express your answer with the correct number of
significant figures.
Hint: 1 gal = 3.785 L - Answers 2.50 x 10^3
Aluminum has a density of 2.70 g/cm3. If a piece of aluminum foil weighs 0.853 g, what is the
volume of the piece of foil (in cm3)? Express your answer with the correct number of significant
figures. - Answers .316
Which scientist is credited with the discovery of the proton? - Answers Ernest Rutherford
How many protons, neutrons and electrons are in the isotope, 238U? - Answers 92 protons, 146
neutrons, 92 electrons
Which property is NOT a property of a non-metal? - Answers Lose electrons easily
Group 6A on the periodic table is also known as _______________. - Answers Chalcogens
Which of the following statements is false regarding cations? - Answers polyatomic ions cannot
be cations
What is the correct formula for a compound composed of zinc and chlorine? - Answers ZnCl2
What is the oxidation number for the iron atom in the compound, Fe3(PO4)2? - Answers +2
What is the correct name for the chemical formula, Mg(OH)2? - Answers magnesium hydroxide
Which of the following chemical formulas is correctly paired with its name? - Answers P4O10,
tetraphosphorus decoxide
, Which of the following is NOT a strong acid? - Answers HF
Which of the following would a chemical equation NOT include? - Answers The masses of both
the reactants and the products
When the following equation is correctly balanced, the coefficient in front of NaN3 is __________.
- Answers 2
What is the molecular weight (in amu) of glucose (C6H12O6)? - Answers 180.2
What is the mass of Ba (g) in 3.50 g BaCO3? - Answers 2.44
How many H atoms are in 2 moles of H2SO4? - Answers 2.409 * 10^24
What is the mass (in g) of 0.5722 mole of chlorine gas? - Answers 40.57
What is the empirical formula of a compound that contains 27.0% S, 13.4% O and 59.6% Cl by
mass? - Answers SOCl2
Which of the following statements is incorrect about the equation below? - Answers When 4
molecules of nitrogen gas are produced, at least 6 molecules of oxygen gas and 10 molecules
of ammonia must have reacted.
Under appropriate conditions, nitrogen gas and hydrogen gas undergo a combination reaction to
yield ammonia:
N2 (g) + 3 H2 (g) → 2 NH3 (g)
How much ammonia (in g) is produced if 3.00 g of N2 and 2.85 g of H2 are allowed to react? -
Answers 3.65
If the theoretical yield of a reaction was 58.8 g but the actual yield was only 12.2 g, then what is
the percent yield of the reaction? - Answers 20.7%
Of the species below, __________ is a strong electrolyte. - Answers HCl (aq)
Which of the following reactions is a decomposition reaction? - Answers 2NaN3 (s) ----> 2Na(s)
+ 3N2 (g)
Which mixture of aqueous solutions result in the formation of a precipitate? - Answers NiBr2
and AgNO3
What is the balanced molecular equation for the reaction between aqueous sodium sulfide and
aqueous sulfuric acid? - Answers Na2S (sq) + H2SO4 (aq) ----> Na2SO4 (aq) + H2S (g)
Which of the following is NOT a compound? - Answers O2, oxygen is a molecule
What is the chemical symbol for the element, copper? - Answers Cu
Which property is a chemical property - Answers flammability
Which of the following mixtures is heterogeneous? - Answers granite
Which of the following processes is/are physical changes? Select all that apply - Answers water
evaporating, tearing a piece of aluminum in half
Which unit is NOT an SI base unit? - Answers celcius
Which metric prefix means 10^-9 - Answers nano
Which of the following measurements has three significant figures? - Answers .00871 m3
An Olympic-sized swimming pool can hold approximately 6.60 x 105 gallons of water. Calculate
the volume of the water in cubic meters (m3). Express your answer with the correct number of
significant figures.
Hint: 1 gal = 3.785 L - Answers 2.50 x 10^3
Aluminum has a density of 2.70 g/cm3. If a piece of aluminum foil weighs 0.853 g, what is the
volume of the piece of foil (in cm3)? Express your answer with the correct number of significant
figures. - Answers .316
Which scientist is credited with the discovery of the proton? - Answers Ernest Rutherford
How many protons, neutrons and electrons are in the isotope, 238U? - Answers 92 protons, 146
neutrons, 92 electrons
Which property is NOT a property of a non-metal? - Answers Lose electrons easily
Group 6A on the periodic table is also known as _______________. - Answers Chalcogens
Which of the following statements is false regarding cations? - Answers polyatomic ions cannot
be cations
What is the correct formula for a compound composed of zinc and chlorine? - Answers ZnCl2
What is the oxidation number for the iron atom in the compound, Fe3(PO4)2? - Answers +2
What is the correct name for the chemical formula, Mg(OH)2? - Answers magnesium hydroxide
Which of the following chemical formulas is correctly paired with its name? - Answers P4O10,
tetraphosphorus decoxide
, Which of the following is NOT a strong acid? - Answers HF
Which of the following would a chemical equation NOT include? - Answers The masses of both
the reactants and the products
When the following equation is correctly balanced, the coefficient in front of NaN3 is __________.
- Answers 2
What is the molecular weight (in amu) of glucose (C6H12O6)? - Answers 180.2
What is the mass of Ba (g) in 3.50 g BaCO3? - Answers 2.44
How many H atoms are in 2 moles of H2SO4? - Answers 2.409 * 10^24
What is the mass (in g) of 0.5722 mole of chlorine gas? - Answers 40.57
What is the empirical formula of a compound that contains 27.0% S, 13.4% O and 59.6% Cl by
mass? - Answers SOCl2
Which of the following statements is incorrect about the equation below? - Answers When 4
molecules of nitrogen gas are produced, at least 6 molecules of oxygen gas and 10 molecules
of ammonia must have reacted.
Under appropriate conditions, nitrogen gas and hydrogen gas undergo a combination reaction to
yield ammonia:
N2 (g) + 3 H2 (g) → 2 NH3 (g)
How much ammonia (in g) is produced if 3.00 g of N2 and 2.85 g of H2 are allowed to react? -
Answers 3.65
If the theoretical yield of a reaction was 58.8 g but the actual yield was only 12.2 g, then what is
the percent yield of the reaction? - Answers 20.7%
Of the species below, __________ is a strong electrolyte. - Answers HCl (aq)
Which of the following reactions is a decomposition reaction? - Answers 2NaN3 (s) ----> 2Na(s)
+ 3N2 (g)
Which mixture of aqueous solutions result in the formation of a precipitate? - Answers NiBr2
and AgNO3
What is the balanced molecular equation for the reaction between aqueous sodium sulfide and
aqueous sulfuric acid? - Answers Na2S (sq) + H2SO4 (aq) ----> Na2SO4 (aq) + H2S (g)
