Advanced Chemistry Final Exam
When .440 mol of aluminum are allowed to react with an excess of chlorine gas, Cl2, how many moles of aluminum chloride are produced? a) .440 mol b) .220 mol c) .110 mol d) .330 mol e) .880 mol
a) .440 mol
A patient has a temperature of 38.5 degrees Celsius. What is the temperature in degrees Fahrenheit? a) 101.3 degrees F b) 11.7 degrees F c) 311.0 degrees F d) 70.5 degrees F e) 126.95 degrees F
a) 101.3 degrees F
What is the molar mass, to three sig figs, of sodium phosphate, Na3PO4? a) 164 g b) 226 g c) 308 g d) 354 g e) 119 g
a) 164 g
According to the octet rule, sulfide ions should have a charge of ____. a) 2- b) 6+ c) 2+ d) 6- e) 8+
a) 2-
The number of moles of oxygen gas needed to react with 4.00 mol of Mg is ____. (2Mg+ O2 --> 2MgO) a) 2.00 mol b) 3.00 mol c) 1.00 mol d) 6.00 mol e) 4.00 mol
a) 2.00 mol
What is the mass percent oxygen in sodium carbonate, Na2CO3? a) 43.4% b) 54.7% c) 56.6% d) 15.1% e) 11.3%
a) 43.4%
If 40.0 g of acetylene is allowed to react with 40.0 g of oxygen, how many grams of CO2 are formed: 2C2H2 + 5O2 __> 4CO2 + 2H2O a) 44.0 g b) 55.0 g c) 80.0 g d) 40.0 g e) 135 g
a) 44.0 g
A temperature of 41 degrees Fahrenheit is the same as _____ degrees Celsius. a) 5 b)16 c) -9 d) 310 e) 42
a) 5
One mol of particles of any substance contains how many particles? a) 6.022 x 10^23 b) 3 x 10^-10 c) 6.022 x 10^-23 d) 10^6 e) 3 x 10^10
a) 6.022 x 10^23
What coefficient is placed in front of O2 to complete the balancing of the following equation: C5H8 + ?O2 --> 5CO2 + 4H2O? a) 7 b) 5 c) 3 d) 9 e) 1
a) 7
Calculate the molar mass of potassium chloride, KCl. a) 74.55 g b) 54.55 g c) 19.00 g d) 67.40 g e) 6.74 g
a) 74.55 g
Gold (III) bromide has the following correct formula. a) AuBr3 b) Au3Br3 c) AuBr d) Au3Br e) Au3Br2
a) AuBr3
Potassium phosphide has the following formula. a) K3P b) K3PO4 c) KP3 d) KPO4 e) KP
a) K3P
The empirical formula of a compound is NO2, and its molar mass is about 92. g. What is its molecular formula? a) N2O4 b) N3O6 c) N4O2 d) N2O e) N3O3
a) N2O4
Which products would result from the double replacement reaction between MgCl2 and Na2CO3? a) NaCl and MgCO3 b) NaCl and Mg2CO3 c) NaCl and Mg(CO3)2 d) Na2Cl2 and MgCO3 e) MgNa2 and CO3Cl2
a) NaCl and MgCO3
A sodium ion is an example of a(n) ____. a) cation b) anion c) polyatomic ion d) nonmetal ion e) neutral atom
a) cation
The phrase "ability to do work" is a definition of _____. a) energy b) heat c) specific heat d) cooling e) calorie
a) energy
In any balanced chemical equation, the number of each type of atom on both sides of the equation is _____. a) the same b) decreased by one c) increased by one d) dependent on the temperature e) doubled
a) the same
How many joules are required to raise the temperature of a 35.0 g sample of iron from 25 degrees Celsius to 35 degrees Celsius? Iron has a specific heat of .450 J/g degrees C... a) 35 J b) 160 J c) 350 J d) 16 J e) 10. J
b) 160 J
In the winter, the outdoor temperature is -12 degrees Fahrenheit. What is the temperature on the Kelvin scale? a) 273 K b) 249 K c) 178 K d) 262 K e) 284 K
b) 249 K
Which of the following give the balanced equation for this reaction: K3PO4 + Ca(NO3)2 --> Ca3(PO3)2 + KN)3? a) KPO4 + CaNO3 + KNO3 b) 2K3PO4 + 3Ca(NO3)2 --> Ca3(PO4)2 + 6KNO3 c) K3PO4 + 3Ca(NO3)2 --> Ca3(PO4)2 + 3KNO3 d) K3PO4 + Ca(NO3)2 --> Ca3(PO4)2 + KNO3 e) 2K3PO4 +Ca(NO3)2 --> Ca3(PO4)2 + 6KNO3
b) 2K3PO4 + 3Ca(NO3)2 --> Ca3(PO4)2 + 6KNO3
On a hot day, the thermometer reads 95 degrees Fahrenheit. What is the temperature in degrees Celsius? a) 77 degrees Celsius b) 35 degrees Celsius c) 178 degrees Celsius d) 113 degrees Celsius e) 63 degrees Celsius
b) 35 degrees Celsius
Given the following equation, what is the correct form of the conversion factor needed to convert the number of moles of O2 to the number of moles of Fe reacted: 4Fe + 3O2 --> 2Fe2O3? ( / is a division sign) a) 2 mol Fe2O3/3 mol O2 b) 4 mol Fe/3 mol O2 c) 4 mol Fe/2 mol Fe2O3 d) 3 mol O2/2 mol Fe2O3 e) 2 mol Fe2O3/4 mol Fe
b) 4 mol Fe/3 mol O2
How many moles of sodium sulfate are present in .1000 g of the compound? a) 2.126 x 10^-3 mol b) 7.040 x 10^-4 mol c) 174.3 mol d) 1.743 x 10^2 mol e) 7.040 mol
b) 7.040 x 10^-4 mol
Calcium hydrogen carbonate has the following formula. a) Ca2HCO3 b) Ca(HCO3)2 c) Ca2CO3 d) CaCO3 e) CaHCO3
b) Ca(HCO3)2
The correct formula for chromium (III) sulfate is ____. a) (Cr)2(SO4)3 b) Cr2(SO4)3 c) Cr2SO4 d) (Cr2)(SO4)3 e) Cr3(SO4)2
b) Cr2(SO4)3
Copper (I) chloride has the following formula. a) CuCl2 b) CuCl c) Cu2Cl d) Cu2Cl4 e) Cu2Cl2
b) CuCl
Magnesium oxide has the following correct formula. a) Mg2O2 b) MgO c) Mg2O4 d) Mg2O e) MgO2
b) MgO
What is the formula of the nitride ion? a) NO^2- b) N^3- c) NO3^- d) NO3^2- e) NO3^3-
b) N3-
The formula for one molecule formed from N and Cl is ____. a) NCl b) NCl3 c) NCl2 d) NCl6 e) N3Cl
b) NCl3
In this set of chemical reactions, which is a single replacement reaction? a) K2SO4 + BaCl2 --> BaSO4 + 2KCl b) Zn + H2SO4 --> ZnSO4 + H2 c) CuSO4 + BaCl2 --> BaSO4 + CuCl2 d) AgNO3 + NaCl --> AgCl + NaNO3 e) Pb(NO3)2 + 2NaCl --> PbCl2 + 2NaNO3
b) Zn + H2SO4 --> ZnSO4 + H2
Fe2(SO4)3 is called ____. a) iron sulfate b) iron (III) sulfate c) iron (II) sulfate d) iron trisulfate e) diiron trisulfate
b) iron (III) sulfate
The compound MgCl2 is named ____. a) magnesium dichloride b) magnesium chloride c) dimagnesium chloride d) magnesium chlorine e) magnesium (II) chloride
b) magnesium chloride
In ionic compounds, ____ lose their valence electrons to form positively charged ____. a) metals, anions b) metals, cations c) nonmetals, anions d) nonmetals, cations e) metals, polyatomic ions
b) metals, cations
The energy stored in the chemical bonds of a molecule is ____. a) a calorie b) potential energy c) kinetic energy d) work e) specific heat
b) potential energy
Double and triple bonds form because... a) one of the atoms in the molecule has more than 8 valence electrons b) single covalent bonds do not give all of the atoms in the molecule eight valence electrons c) there is at least one hydrogen atom involved in the bond d) the atoms involved have high electronegativities e) the ions involved have charges larger than one
b) single covalent bonds do not give all of the atoms in the molecule eight valence electrons
The correct name for SnCl2 is ____. a) antimony dichloride b) tin (II) chloride c) tin (IV) chloride d) antimony (II) chloride e) tin chloride
b) tin (II) chloride
A calorie is required to raise the temperature of... a) 100.0 g of water by 1.0 degrees Celsius b) 100.0 g of water by 10.0 degrees Celsius c) 1 g of water by 1.0 degrees Celsius d) 10.0 g of water by 1.0 degrees Celsius e) 1 g of water by 10.0 degrees Celsius
c) 1 g of water by 1.0 degrees Celsius
Which of the following correctly gives the best coefficients for the reaction below: N2H4 + H2O2 --> N2 + H2O? a) 2, 4, 2, 4 b) 1, 1, 1, 1 c) 1, 2, 1, 4 d) 2, 4, 2, 8 e) 1, 4, 1, 4
c) 1, 2, 1, 4
For the following reaction, what is the correct coefficient for the H2: Fe + HCl --> FeCl3 + H2? a) 1 b) 2 c) 3 d) 4 e) 5
c) 3
What is the coefficient of hydrogen, H2, when the following equation is balanced: Al + H2SO4 --> Al2(SO4)3 + ?H2? a) 1 b) 2 c) 3 d) 4 e) 5
c) 3
How many moles of water, H2O, are present in 75.0 g H2O? a) 1.35 x 10^3 mol b) 4.41 mol c) 4.16 mol d) 7.50 mol e) 75.0 mol
c) 4.16 mol
How many atoms of chlorine are in 1.00 mol of chlorine gas? a) 1.20 x 10^24 b) 3.01 x 10^23 c) 6.02 x 10^23 d) 6.02 x 10^-23 e) 1.20 x 10^024
c) 6.02 x 10^23
Name the product(s) of the complete combustion of any hydrocarbon. a) H2O only b) CO2 only c) CO2 + H2O d) CO + H2O e) CO only
c) CO2 + H2O
The correct formula for copper (II) chloride is ____. a) Cu2Cl2 b) Cu2Cl c) CuCl2 d) Cu2Cl4 e) CuCl4
c) CuCl2
What is the symbol for the ion with 19 protons and 18 electrons? a) K^- b) F^+ c) K^+ d) F^- e) Ar^+
c) K+
Lead (II) iodide has the following formula. a) PbI b) Pb2I3 c) PbI2 d) Pb2I e) Pb2I2
c) PbI2
In a molecule with covalent bonding... a) atoms of different metals form bonds b) atoms of noble gases are held together by attractions between oppositely charged ions c) atoms are held together by sharing electrons d) atoms of metals form bonds to atoms of nonmetals e) oppositely charged ions are held together by strong electrical attractions
c) atoms are held together by sharing electrons
The octet rule indicates that... a) all of the shells in an atom hold a maximum of 8 electrons b) all of the Group A elements have 8 valence electrons c) atoms lose, gain, or share valence electrons to have 8 valence electrons d) the noble gases react with other compounds to get 8 valence electrons e) all of the noble gases have eight total electrons
c) atoms lose, gain, or share valence electrons to have 8 valence electrons
The following reaction takes place when an electric current is passed through water. It is an example of a ____ reaction: 2H2O --electricity--> 2H2 + O2? a) double replacement b) single replacement c) decomposition d) combination e) combustion
c) decomposition
The reaction of carbon monoxide and oxygen is what type of reaction: 2CO2 --> 2CO + O2? a) oxidation b) double replacement c) decomposition d) combination e) single replacement
c) decomposition
An anion always... a) contains a metal and a nonmetal b) has a positive charge c) has a negative charge d) contains a group of two or more atoms with a positive charge e) forms covalent bonds
c) has a negative charge
An ionic compound... a) contains only anions b) has a net positive charge c) has a net charge of zero d) has a net negative charge e) contains only cations
c) has a net charge of zero
The correct name for FeS is ____. a) iron (III) sulfite b) iron (II) sulfate c) iron (II) sulfide d) ferric sulfide e) ferrous sulfite
c) iron (II) sulfide
How many electrons will aluminum gain or lose when it forms an ion? a) gain 1 b) gain 5 c) lose 3 d) lose 1 e) lose 2
c) lose 3
Which of the following elements forms a diatomic molecule? a) iron b) sodium c) nitrogen d) neon e) sulfur
c) nitrogen
Avogadro's number is the number of... a) amu in 1 mol of a substance b) grams in 1 mol of a substance c) particles in 1 mol of a substance d) moles in 6.022 x 10^23 amu of an element e) moles in 6.022 x 10^23 grams of an element
c) particles in 1 mol of a substance
A group of covalently bonded atoms that has an overall electrical charge is called a(n) ____. a) ionic compound b) molecule c) polyatomic ion d) cation e) anion
c) polyatomic ion
The specific heat of a substance is the amount of heat needed to... a) change 1 g of the substance from the liquid to the solid state b) convert 1 g of a solid to a gas c) raise the temperature of 1 g of the substance by 1 degree Celsius d) change 1 g of the substance from the solid to the liquid state e) convert 1 g of a liquid to a gas
c) raise the temperature of 1 g of the substance by 1 degree Celsius
In a ____ reaction, two or more elements or compounds form one product. a) combustion b) single replacement c) synthesis d) double replacement e) decomposition
c) synthesis
Absolute zero is _____. a) the boiling point of liquid nitrogen b) the freezing point of liquid nitrogen c) the coldest temperature possible d) the temperature on the Kelvin scale corresponding to 32 degrees F e) the freezing point of water using the Celsius scale
c) the coldest temperature possible
A chemical equation is balanced when... a) the charge on each atoms is the same in reactants and products b) the sum of the coefficients of the reactants is equal to the sum of the coefficients of the products c) the number of atoms of each element is the same in reactants and products d) the total number of ions is the same in reactants and products e) the total number of molecules is the same in reactants and products
c) the number of atoms of each element is the same in reactants and products
How many moles of magnesium are needed to react with 16.0 g of O2? (2Mg+ O2 --> 2MgO) a) 3.00 mol b) .500 mol c) 4.00 mol d) 1.00 mol e) 2.00 mol
d) 1.00 mol
1.00 mol of sodium has a mass of ____. a) .230 g b) 2.30 x 10^-6 g c) .0230 g d) 23.0 g e) .00230 g
d) 23.0 g
Calculate the number of grams of sulfuric acid in 6.00 mol. a) 98.1 g b) 16.3 g c) 6.00 g d) 588 g e) 5.00 g
d) 588 g
4.00 mol of sodium has a mass of ____. a) 128. g b) 4.60 g c) 23.0 g d) 92.0 g e) 44.0 g
d) 92.0 g
Which one of the following elements forms two or more ions with different ionic charges? a) K b) F c) O d) Fe e) Ca
d) Fe
Calculate the empirical formula of a compound that has a composition of 5.9% (by mass) hydrogen and 94.1% (by mass) oxygen. a) H4O2 b) H2O c) HO2 d) HO e) H2O4
d) HO
A sample of a white solid contains .212 g of magnesium and .140 g of oxygen. What is the empirical formula of this compound? a) Mg2O b) MgO2 c) OMg d) MgO e) Mg2O2
d) MgO
What is the correct formula for the oxide ion? a) O^+ b) O^3+ c) O d) O^2- e) O^2+
d) O2-
The formula for sulfur dichloride is ____. a) S4Cl2 b) S2Cl c) S2Cl2 d) SCl2 e) SCl
d) SCl2
Which of the following polyatomic ions has a positive charge? a) hydrogen carbonate b) nitrate c) cyanide d) ammonium e) hydroxide
d) ammonium
According to the IUPAC nomenclature system, the types of compound that use prefixes in their names are ____. a) polyatomic ions b) ionic compounds involving transition metals c) compounds that contain polyatomic ions d) covalent compounds e) ionic compounds
d) covalent compounds
The correct name for the compound N2O3 is ____. a) dinitrogen oxide b) nitrogen oxide c) dinitride trioxide d) dinitrogen trioxide e) nitrogen trioxide
d) dinitrogen trioxide
The energy associated with the motion of particles in a substance is called _____. a) electrical energy b) potential energy c) chemical energy d) heat e) temperature
d) heat
The energy of motion is referred to as _____. a) freezing b) work c) specific heat d) kinetic energy e) potential energy
d) kinetic energy
Which of the following polyatomic ions has a 3- ionic charge? a) nitrate b) hydroxide c) sulfate d) phosphate e) bicarbonate
d) phosphate
An example of kinetic energy is _____. a) a coiled spring b) chemical energy c) natural gas d) running water e) a tree
d) running water
What is the classification for this unbalanced reaction: Fe + HCl --> FeCl3 + H2? a) double replacement b) combustion c) decomposition d) single replacement e) combination
d) single replacement
Which of the following is an example of potential energy? a) a fan blade turning b) chewing food c) riding an exercise bike d) water stored in a reservoir e) burning wood
d) water stored in a reservoir
Ammonium carbonate has the formula shown below. a) (NH4)2(CO3)2 b) (NH4)CO3 c) NH4CO3 d) NH4(CO3)2 e) (NH4)2CO3
e) (NH4)2CO3
How many moles of K2SO4 are in 15.0 g of K2SO4? a) 2.61 x 10^3 mol b) .172 mol c) .111 mol d) .119 mol e) .0861 mol
e) .0861 mol
How many grams of hydrogen are needed to produce 1.80 g of water according to this equation: 2H2 + O2 --> 2H2O? a) .100 g b) .180 g c) 2.01 g d) 4.02 g e) .201 g
e) .201 g
The energy of 4.72 kJ is the same as ____ cal. a) 4.184 b) 19800 c) 1.13 d) 8.86 e) 1130
e) 1130
The energy of 3600 cal is equal to ____ kJ. a) .86 b) 4.184 c) 15000 d) 3.6 e) 15
e) 15
How many calories are required to increase the temperature of 13.0 g of ethanol from -11.0 degrees Celsius to 23.6 degrees Celsius? The specific heat of ethanol is 2.46 J/g degrees C... a) 1110 cal b) 403 cal c) 96.3.9 cal d) 170. cal e) 264 cal
e) 264 cal
How many kilojoules are required to raise the temperature of a 150. g sample of silver from 25 degrees Celsius to 135 degrees Celsius? Silver has a specific heat of .235 J/g degrees C... a) 35.3 kJ b) 16.5 kJ c) .0353 kJ d) 110. kJ e) 3.88 kJ
e) 3.88 kJ
The temperature of liquid nitrogen is -196 degrees Celsius. What is the corresponding reading on the Kelvin scale? a) -91 K b) 48 K c)-127 K d)146 K e) 77 K
e) 77 K
Which of the following correctly illustrates the conservation of mass for the reaction below: 4Na + O2 --> 2Na2O? a) 92.0 g Na, 16.0 g O2, 108 g Na2O b) 92.0 g Na, 16.0 g O2, 124 g Na2O c) 23.0 g Na, 16.0 g O2, 39.0 g Na2O d) 23.0 g Na, 16.0 g O2, 124 g Na2O e) 92.0 g Na, 32.0 g O2, 124 g Na2O
e) 92.0 g Na, 32.0 g O2, 124 g Na2O
What is the formula for aluminum nitrite? a) Al2NO2 b) Al2(NO3)3 c) AlNO3 d) Al2(NO2)2 e) Al(NO2)3
e) Al(NO2)3
The empirical formula of a compound is CH2O, and its molar mass is about 180. g. What is its molecular formula? a) C5H24O6 b) C5H8O7 c) C7O6 d) C12H22O11 e) C6H1206
e) C6H1206
The formula for the compound formed between calcium and sulfate ion is which of these? a) Ca2(SO4)2 b) CaSO3 c) Ca(SO4)2 d) (Ca)2SO4 e) CaSO4
e) CaSO4
Iron (III) sulfite has this formula. a) (Fe)3(SO3)3 b) Fe(SO3)3 c) Fe2SO3 d) (Fe)2SO3 e) Fe2(SO3)3
e) Fe2(SO3)3
Which one of the following compounds contains an ion with a 3+ charge? a) CuCl b)Na2O c) MgCl2 d) KCl e) FeCl3
e) FeCl3
What is the correct name of BaSO4? a) barium (I) sulfide b) barium (I) sulfate c) barium (II) sulfate d) barium sulfide e) barium sulfate
e) barium sulfate
The name of the compound BF3 is ____. a) monoboron trifluoride b) borofluoride c) monoboronfluoride d) boron fluoride e) boron trifluoride
e) boron trifluoride
Give the correct name for FePO4. a) iron (II) phosphate b) phospoiron c) iron phosphate d) iron phosphite e) iron (III) phosphate
e) iron (III) phosphate
What is the correct name for LiBr? a) bromine lithium b) lithium monobromine c) lithium bromate d) bromolithium e) lithium bromide
e) lithium bromide
In a covalently bonded molecule, the number of electrons that an atoms shares with others is usually equal to the number of electrons ____. a) in its nucleus b) in its ion c) in all atoms d) in the atom e) needed to have a noble gas arrangement
e) needed to have a noble gas arrangement
Silver nitrate reacts with potassium chloride to produce solid silver chloride and what substance? a) nitrogen b) oxygen c) potassium metal d) potassium nitrite e) potassium nitrate
e) potassium nitrate
