下列电池不属于浓差电池的是( )。 A: Tl(Hg)(a1)|Tl+(aq)|Tl(Hg)(a2) B: Na(Hg)(A)| NaCl(m1)|AgCl(s)|Ag(s)—Ag(s)|AgCl(s)| NaCl(m2)|Na(Hg)(A) C: Ag(s)|AgCl(s)|NaCl(aq)|Na(Hg)(A)|NaCl(CH3CN溶液)|Na(s) D: Na(Hg)(A)|NaCl(m1)|| NaCl(m2)|Na(Hg)(A)
下列电池不属于浓差电池的是( )。 A: Tl(Hg)(a1)|Tl+(aq)|Tl(Hg)(a2) B: Na(Hg)(A)| NaCl(m1)|AgCl(s)|Ag(s)—Ag(s)|AgCl(s)| NaCl(m2)|Na(Hg)(A) C: Ag(s)|AgCl(s)|NaCl(aq)|Na(Hg)(A)|NaCl(CH3CN溶液)|Na(s) D: Na(Hg)(A)|NaCl(m1)|| NaCl(m2)|Na(Hg)(A)
下列电池不属于浓差电池的是: () A: Tl(Hg)(a1)|Tl+(aq)|Tl(Hg)(a2) B: Na(Hg) |NaCl(m1)|| NaCl(m2)|Na(Hg)A. C: Na(Hg) | NaCl(m1)|AgCl(s)|Ag(s)—Ag(s)|AgCl(s)| NaCl(m2)|Na(Hg)A. D: Ag(s)|AgCl(s)|NaCl(aq)|Na(Hg) |NaCl(CH3CN溶液)|Na(s)
下列电池不属于浓差电池的是: () A: Tl(Hg)(a1)|Tl+(aq)|Tl(Hg)(a2) B: Na(Hg) |NaCl(m1)|| NaCl(m2)|Na(Hg)A. C: Na(Hg) | NaCl(m1)|AgCl(s)|Ag(s)—Ag(s)|AgCl(s)| NaCl(m2)|Na(Hg)A. D: Ag(s)|AgCl(s)|NaCl(aq)|Na(Hg) |NaCl(CH3CN溶液)|Na(s)
以下属于微生物大量元素的是 A: P、S、K、Na、Mg、Ca、Fe B: P、S、K、Na、Mg、Cu、Fe C: P、S、K、Na、Zn、Ca、Fe D: P、S、K、Na、Mg、Ca、Mn
以下属于微生物大量元素的是 A: P、S、K、Na、Mg、Ca、Fe B: P、S、K、Na、Mg、Cu、Fe C: P、S、K、Na、Zn、Ca、Fe D: P、S、K、Na、Mg、Ca、Mn
下列反应ΔrHmө代表NaCl(s)的ΔfHmө的是()。 A: Na+(g)+Cl-(g)=NaCl(s) B: Na(s)+(1/2)Cl2(g)=NaCl(s) C: Na(s)+Cl(g)=NaCl(s) D: Na(g)+Cl(g)=NaCl(S)
下列反应ΔrHmө代表NaCl(s)的ΔfHmө的是()。 A: Na+(g)+Cl-(g)=NaCl(s) B: Na(s)+(1/2)Cl2(g)=NaCl(s) C: Na(s)+Cl(g)=NaCl(s) D: Na(g)+Cl(g)=NaCl(S)
The experimudent's will extend the student's knowledge of na正确.
The experimudent's will extend the student's knowledge of na正确.
“Changes, myths, knives” should be pronounced as A: /ˈtʃeɪndʒɪz/ / 'mɪθs / /naɪvz/ B: /ˈtʃeɪndʒz/ / 'mɪθiz / /naɪvs/ C: /ˈtʃeɪndʒɪs/ / 'mɪθis / /naɪvz/ D: /ˈtʃeɪndʒɪz/ / 'mɪθz / /naɪvs/
“Changes, myths, knives” should be pronounced as A: /ˈtʃeɪndʒɪz/ / 'mɪθs / /naɪvz/ B: /ˈtʃeɪndʒz/ / 'mɪθiz / /naɪvs/ C: /ˈtʃeɪndʒɪs/ / 'mɪθis / /naɪvz/ D: /ˈtʃeɪndʒɪz/ / 'mɪθz / /naɪvs/
According toText A,which of the following statements is true about Li Na ? A: Jiang Shan, Li Na’s husband, often keeps her awake with his snoring B: Li’s success is closely connected with her husband’s help and support C: Li Na was just lucky enough to beat Caroline Wozniacki. D: Caroline Wozniacki has never beaten Li Na
According toText A,which of the following statements is true about Li Na ? A: Jiang Shan, Li Na’s husband, often keeps her awake with his snoring B: Li’s success is closely connected with her husband’s help and support C: Li Na was just lucky enough to beat Caroline Wozniacki. D: Caroline Wozniacki has never beaten Li Na
预胶化淀粉的简称正确的是() A: PG B: C: PV D: E: S-NA F: PEG
预胶化淀粉的简称正确的是() A: PG B: C: PV D: E: S-NA F: PEG
下列过程的DrHmy在数值上等于晶格能的是( ) A: NaBr(s)→Na+(s)+1/2Br2(l) B: NaBr(s)→Na(g)+Br(g) C: NaBr(s)→Na+(g)+Br-(g) D: NaBr(s)→Na(g)+1/2Br2(g)
下列过程的DrHmy在数值上等于晶格能的是( ) A: NaBr(s)→Na+(s)+1/2Br2(l) B: NaBr(s)→Na(g)+Br(g) C: NaBr(s)→Na+(g)+Br-(g) D: NaBr(s)→Na(g)+1/2Br2(g)
已知Na(s)+1/2Cl2(g)= NaCl(s)的ΔrGm=-411.2kJ·mol-1则该反应( )
已知Na(s)+1/2Cl2(g)= NaCl(s)的ΔrGm=-411.2kJ·mol-1则该反应( )