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6 Nov 2019

Balancethe following equations. (Use the lowest possible whole numbercoefficients. Include states-of-matter under the given conditionsin your answer.)

(a) KNO3(s)?K2O(s) + N2O5(g)
(b) C10H22(l) + O2(g) ?CO2(g) + H2O(g)

(c) Fe(s)+ S8(s) ?FeS(s)

(d) RbClO3(s)?RbCl(s) + O2(g)

(e) Eu2O3(s)+ H2S(g) ?EuS(s) + H2O(g) +S(g)

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Elin Hessel
Elin HesselLv2
19 Feb 2019

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Related questions

Balance the following equations, and indicate whether theyarecombustion, combination, or decomposition reactions. (Usethelowest possible coefficients. Include states-of-matter underthegiven conditions in your answer.)
(a) C3H6(g) + O2(g)->CO2(g) +H2O(l) combustion,combination ordecomposition
(b) NH4NO3(s) -> N2O(g)+H2O(l) combustion, combinationordecomposition
(c) C5H6O(l) + O2(g)->CO2(g) + H2O(l) combustion,combination or decomposition
(d) N2(g) + H2(g)->NH3(g) combustion, combinationordecomposition
(e) K2O(s) + H2O(l)->KOH(aq) combusiton, combination ordecomposition

substance

Δ

Hf

°

(kJ/mol)

Δ

Gf

°

(kJ/mol)		 S

°

(J/mol∙K)
Aluminum
Al3+ (aq) --- -485.0 ---
Al (s) 0 0 28.3
Al2O3 (s) -1675.7 -1582.3 50.9
Al(OH)3 (s) --- -1147.25 ---
Bromine
Br− (aq) --- -104.0 ---
Br2 (l) 0 0 152.2
Br2 (g) 30.9 3.1 245.5
HBr (g) -36.3 -53.4 198.7
Calcium
Ca2+ (aq) --- -553.6 ---
CaCl2 (s) -795.4 --- ---
CaO (s) -634.9 --- ---
Ca(OH)2 (s) -985.2 --- ---
Ca3(PO4)2 (s) --- -3884.7 ---
Carbon
C (s) 0 0 5.7
CCl4 (g) -95.7 -64.0 309.4
CCl4 (l) -128.2 -68.6 214.4
CCl4 (s) -136.8 --- ---
CH4 (g) -74.6 -50.5 186.3
C2H2 (g) 227.4 --- ---
C2H6 (g) -84.0 --- ---
C3H8 (g) -103.85 -23.4 270.3
C4H10 (g) -125.7 -15.7 310.0
C4H10 (l) -147.3 -15.0 231.0
C6H6 (l) 49.1 124.5 173.4
C6H6 (g) 82.9 129.7 269.2
CH3OH (l) -239.2 -166.6 126.80
CH3OH (g) -201.0 -162.3 239.9
(CH3)2(CH2)2O (l) -279.5 -346.74 253.5
C6H12O6 (s) -1237.3 -910.4 212.1
CO (g) -110.5 -137.2 197.7
CO2 (g) -393.5 -394.4 213.8
C2H5OH (l) -277.6 -174.8 160.7
C2H5OH (g) -234.8 -167.9 281.6
HCH3CO2 (l) -484.3 -389.9 159.8
HCH3CO2 (s) -472.8 --- ---
HCH3CO2 (g) -432.2 --- 283.5
HCN (l) 108.9 125.0 112.8
HCN (g) 135.1 124.7 201.8
CS2 (s) 93.8 --- ---
CS2 (l) 89.0 64.6 151.3
CS2 (g) 116.7 67.1 237.8
Chlorine
Cl2 (g) 0 0 223.1
Cl− (aq) --- -131.2 ---
HCl (aq) -167. --- ---
HCl (g) -92.3 -95.3 186.9
Chromium
CrO42− (aq) --- -727.8 ---
Fluorine
F2 (g) 0 0 202.8
HF (g) -273.3 -275.4 173.8
Hydrogen
H2 (g) 0 0 130.7
Iron
Fe (s) 0 0 27.3
FeCl3 (s) -399.5 -334.0 142.3
Fe2O3 (s) -824.2 -742.2 87.4
Lead
Pb2+ (aq) --- -24.4 ---
PbBr2 (s) -278.7 -261.9 161.5
PbS (s) -100.4 -98.7 91.2
PbSO4 (s) -920.0 -813.0 148.5
Magnesium
MgCl2 (s) -641.3 -591.8 89.6
MgO (s) -601.6 -569.3 27.0
Mercury
Hg (g) 61.4 31.8 175.0
Hg (l) 0 0 75.9
Hg (s) -2.29 --- ---
Hg22+ (aq) --- 153.5 ---
Hg2Cl2 (s) --- -210.7 ---
Nitrogen
N2 (g) 0 0 191.6
N2H4 (g) 95.4 159.4 238.5
N2H4 (l) 50.6 149.3 121.2
NH3 (g) -45.9 -16.4 192.8
NH3 (l) -69.54 -26.50 95.09
NH4NO3 (s) -365.6 -183.9 151.1
NO (g) 91.3 87.6 210.8
NO2 (g) 33.2 51.3 240.1
NOCl (g) 51.7 66.1 261.7
N2O4 (g) 11.1 99.8 304.4
HNO2 (g) -79.5 --- ---
HNO3 (l) -174.1 -80.7 155.6
HNO3 (g) -133.9 -73.5 266.9
Oxygen
OH− (aq) --- -157.2 ---
H2O (l) -285.8 -237.1 70.0
H2O (g) -241.8 -228.6 188.8
O2 (g) 0 0 205.2
H2O2 (l) -187.8 -120.4 109.6
H2O2 (g) -136.3 -105.6 232.7
Phosphorus
P4 (s) 0 0 41.
P4 (g) 58.9 24.4 280.0
PCl3 (g) -287.0 -267.8 311.8
PCl3 (l) -319.7 -272.3 217.1
PF5 (g) -1594.4 -1520.7 300.8
PO43− (aq) --- -1018.7 ---
H3PO4 (l) -1271.7 --- ---
H3PO4 (s) -1284.4 -1124.3 110.5
P4O10 (s) -2984. -2675.2 228.9
Potassium
KBr (s) -393.4 -380.7 95.9
KNO3 (s) -492.7 -393.13 132.9
Silver
Ag+ (aq) --- 77.1 ---
Ag2CrO4 (s) --- -641.8 ---
Sodium
NaCl (s) -411.2 --- ---
NaOH (s) -425.8 --- ---
Sulfur
S8 (s) 0 0 32.0
H2S (g) -20.6 --- ---
H2SO4 (l) -814.0 --- ---
SF6 (g) -1220.5 -1116.5 291.5
Tin
Sn (s) 0 0 51.2
SnO2 (s) -577.6 -515.8 49.0
Titanium
TiCl4 (g) -763.2 -726.3 353.2
TiCl4 (l) -804.2 -737.2 252.3
TiO2 (s) -944.0 -888.8 50.6

Balance the following equations. (Use the smallest whole numbers possible. Enter 1 where appropriate - do not leave any answer box blank.) (a) 2 Correct: Your answer is correct. Fe(OH)3(s) + 3 Correct: Your answer is correct. H2SO4(aq) 1 Correct: Your answer is correct. Fe2(SO4)3(aq) + 2 Changed: Your submitted answer was incorrect. Your current answer has not been submitted. H2O(l) (b) Incorrect: Your answer is incorrect. Mg3N2(s) + Incorrect: Your answer is incorrect. HCl(aq) Incorrect: Your answer is incorrect. MgCl2(aq) + Incorrect: Your answer is incorrect. NH4Cl(aq) (c) Incorrect: Your answer is incorrect. C4H10O(l) + Incorrect: Your answer is incorrect. O2(g) Incorrect: Your answer is incorrect. CO2(g) + Incorrect: Your answer is incorrect. H2O(l)

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