CHM113 Final
Which of the following is NOT a compound? - CORRECT ANSWER-O2, oxygen
is a molecule
What is the chemical symbol for the element, copper? - CORRECT ANSWER-Cu
Which property is a chemical property - CORRECT ANSWER-flammability
Which of the following mixtures is heterogeneous? - CORRECT
ANSWER-granite
Which of the following processes is/are physical changes? Select all that apply -
CORRECT ANSWER-water evaporating, tearing a piece of aluminum in half
Which unit is NOT an SI base unit? - CORRECT ANSWER-celcius
Which metric prefix means 10^-9 - CORRECT ANSWER-nano
Which of the following measurements has three significant figures? - CORRECT
ANSWER-.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 - CORRECT ANSWER-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. - CORRECT ANSWER-.316
Which scientist is credited with the discovery of the proton? - CORRECT
ANSWER-Ernest Rutherford
How many protons, neutrons and electrons are in the isotope, 238U? -
CORRECT ANSWER-92 protons, 146 neutrons, 92 electrons
,Which property is NOT a property of a non-metal? - CORRECT ANSWER-Lose
electrons easily
Group 6A on the periodic table is also known as _______________. - CORRECT
ANSWER-Chalcogens
Which of the following statements is false regarding cations? - CORRECT
ANSWER-polyatomic ions cannot be cations
What is the correct formula for a compound composed of zinc and chlorine? -
CORRECT ANSWER-ZnCl2
What is the oxidation number for the iron atom in the compound, Fe3(PO4)2? -
CORRECT ANSWER-+2
What is the correct name for the chemical formula, Mg(OH)2? - CORRECT
ANSWER-magnesium hydroxide
Which of the following chemical formulas is correctly paired with its name? -
CORRECT ANSWER-P4O10, tetraphosphorus decoxide
Which of the following is NOT a strong acid? - CORRECT ANSWER-HF
Which of the following would a chemical equation NOT include? - CORRECT
ANSWER-The masses of both the reactants and the products
When the following equation is correctly balanced, the coefficient in front of NaN3
is __________. - CORRECT ANSWER-2
What is the molecular weight (in amu) of glucose (C6H12O6)? - CORRECT
ANSWER-180.2
What is the mass of Ba (g) in 3.50 g BaCO3? - CORRECT ANSWER-2.44
How many H atoms are in 2 moles of H2SO4? - CORRECT ANSWER-2.409 *
10^24
, What is the mass (in g) of 0.5722 mole of chlorine gas? - CORRECT
ANSWER-40.57
What is the empirical formula of a compound that contains 27.0% S, 13.4% O
and 59.6% Cl by mass? - CORRECT ANSWER-SOCl2
Which of the following statements is incorrect about the equation below? -
CORRECT ANSWER-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? - CORRECT ANSWER-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? - CORRECT ANSWER-20.7%
Of the species below, __________ is a strong electrolyte. - CORRECT
ANSWER-HCl (aq)
Which of the following reactions is a decomposition reaction? - CORRECT
ANSWER-2NaN3 (s) ----> 2Na(s) + 3N2 (g)
Which mixture of aqueous solutions result in the formation of a precipitate? -
CORRECT ANSWER-NiBr2 and AgNO3
What is the balanced molecular equation for the reaction between aqueous
sodium sulfide and aqueous sulfuric acid? - CORRECT ANSWER-Na2S (sq) +
H2SO4 (aq) ----> Na2SO4 (aq) + H2S (g)
Which of the following will react with HCl (aq) to form H2 gas? - CORRECT
ANSWER-Fe (s)
Which of the following is NOT a compound? - CORRECT ANSWER-O2, oxygen
is a molecule
What is the chemical symbol for the element, copper? - CORRECT ANSWER-Cu
Which property is a chemical property - CORRECT ANSWER-flammability
Which of the following mixtures is heterogeneous? - CORRECT
ANSWER-granite
Which of the following processes is/are physical changes? Select all that apply -
CORRECT ANSWER-water evaporating, tearing a piece of aluminum in half
Which unit is NOT an SI base unit? - CORRECT ANSWER-celcius
Which metric prefix means 10^-9 - CORRECT ANSWER-nano
Which of the following measurements has three significant figures? - CORRECT
ANSWER-.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 - CORRECT ANSWER-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. - CORRECT ANSWER-.316
Which scientist is credited with the discovery of the proton? - CORRECT
ANSWER-Ernest Rutherford
How many protons, neutrons and electrons are in the isotope, 238U? -
CORRECT ANSWER-92 protons, 146 neutrons, 92 electrons
,Which property is NOT a property of a non-metal? - CORRECT ANSWER-Lose
electrons easily
Group 6A on the periodic table is also known as _______________. - CORRECT
ANSWER-Chalcogens
Which of the following statements is false regarding cations? - CORRECT
ANSWER-polyatomic ions cannot be cations
What is the correct formula for a compound composed of zinc and chlorine? -
CORRECT ANSWER-ZnCl2
What is the oxidation number for the iron atom in the compound, Fe3(PO4)2? -
CORRECT ANSWER-+2
What is the correct name for the chemical formula, Mg(OH)2? - CORRECT
ANSWER-magnesium hydroxide
Which of the following chemical formulas is correctly paired with its name? -
CORRECT ANSWER-P4O10, tetraphosphorus decoxide
Which of the following is NOT a strong acid? - CORRECT ANSWER-HF
Which of the following would a chemical equation NOT include? - CORRECT
ANSWER-The masses of both the reactants and the products
When the following equation is correctly balanced, the coefficient in front of NaN3
is __________. - CORRECT ANSWER-2
What is the molecular weight (in amu) of glucose (C6H12O6)? - CORRECT
ANSWER-180.2
What is the mass of Ba (g) in 3.50 g BaCO3? - CORRECT ANSWER-2.44
How many H atoms are in 2 moles of H2SO4? - CORRECT ANSWER-2.409 *
10^24
, What is the mass (in g) of 0.5722 mole of chlorine gas? - CORRECT
ANSWER-40.57
What is the empirical formula of a compound that contains 27.0% S, 13.4% O
and 59.6% Cl by mass? - CORRECT ANSWER-SOCl2
Which of the following statements is incorrect about the equation below? -
CORRECT ANSWER-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? - CORRECT ANSWER-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? - CORRECT ANSWER-20.7%
Of the species below, __________ is a strong electrolyte. - CORRECT
ANSWER-HCl (aq)
Which of the following reactions is a decomposition reaction? - CORRECT
ANSWER-2NaN3 (s) ----> 2Na(s) + 3N2 (g)
Which mixture of aqueous solutions result in the formation of a precipitate? -
CORRECT ANSWER-NiBr2 and AgNO3
What is the balanced molecular equation for the reaction between aqueous
sodium sulfide and aqueous sulfuric acid? - CORRECT ANSWER-Na2S (sq) +
H2SO4 (aq) ----> Na2SO4 (aq) + H2S (g)
Which of the following will react with HCl (aq) to form H2 gas? - CORRECT
ANSWER-Fe (s)
