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Question
What is the oxidation number of each atom in sodium hydrogen carbonate, NaHCO3?
A.Na = +1, H = -1, C = +6, O = -2
B.Na = +1, H = +1, C = +4, O = -2
C.Na = +1, H = -1, C = +2, O = -2
D.Na = -1, H = +1, C = 0, O = -2
E.Na = 0, H = 0, C = 0, O = 0
Answer
This answer is hidden. It contains 2 characters.
Related questions
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Q:
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B.0.75 m K2SO4
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Q:
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Q:
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A.
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D.
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Which equation represents the number of atoms in a body-centered cubic unit cell?
A.
B.
C.
D.
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Q:
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AgBr(s) Ag+(aq) + Br-(aq)
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Q:
What is the equilibrium constant for reaction below at 25 C? (R = 8.314 J/Kmol)2 NO(g) + O2(g) 2 NO2(g)given DfG [NO(g)] = +86.6 kJ/mol and DfG [NO2(g)] = +51.2 kJ/mol.A.3.9 10-13B.1.0C.2.6 1012D.1.6 106E.3.8 1028
Q:
All of the following relationships are true EXCEPT
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B..
C..
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Q:
Calculate DrG for the combustion of benzene at 325 K.2 C6H6() + 15 O2(g) 12 CO2(g) + 6 H2O()Species DfH (kJ/mol) S (J/Kmol)C6H6() 49.0 173.3O2(g) 0 205.1CO2(g) -393.5 213.7H2O() -285.8 67.0A.-6386 kJ/mol-rxnB.-6078 kJ/mol-rxnC.-7251 kJ/mol-rxnD.-8611 kJ/mol-rxnE.+1431 kJ/mol-rxn
Q:
If a chemical reaction is exothermic, but not spontaneous, which of the following must be true?
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B.DrG < 0, DrS > 0 and DrH > 0
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