THF/H<sub>2</sub>O在0.7Mpa下沸点()
A、148
B、138
C、134
D、99
A、148
B、138
C、134
D、99
A、C<sub>5sub>H<sub>8sub>O B、CH<sub>2sub>OH C、C<sub>4sub>H<sub>8sub>O D、CH<sub>3sub>CH<sub>2sub>COCH<sub>3sub>
A、1.8-11.8,C<sub>4sub>H<sub>8sub>O B、4.1-74.1,CH<sub>2sub>OH C、2.8-62.8,C<sub>4sub>H<sub>8sub>O D、4.1-74.1,CH<sub>3sub>CH<sub>2sub>COCH<sub>3sub>
A、1.8-11.8,C<sub>4sub>H<sub>8sub>O B、4.1-74.1,CH<sub>2sub>OH C、2.8-62.8,C<sub>4sub>H<sub>8sub>O D、4.1-74.1,CH<sub>3sub>CH<sub>2sub>COCH<sub>3sub>
A、H<sub>2sub>O(l,268K,100kPa)→H<sub>2sub>O(s,268K,100kPa) B、在298 K,100kPa时,H<sub>2sub>(g)+Cl<sub>2sub>(g)=2HCl(g) C、在298 K,100kPa时,一定量的NaCl(s)溶于水中 D、H<sub>2sub>O(l,373K,100kPa)→H<sub>2sub>O(g,373K,100kPa)
A、C+O<sub>2sub>→CO<sub>2sub>+Q,C+O<sub>2sub>→CO+Q B、CO<sub>2sub>+C→CO-Q,CO+H<sub>2sub>→CH<sub>4sub>+H<sub>2sub>O+Q. C、C+O<sub>2sub>→CO+Q,C+H<sub>2sub>O→CO+H<sub>2sub>-Q D、CO<sub>2sub>+C→CO-Q,C+H<sub>2sub>O→CO+H<sub>2sub>-Q
A、H<sub>2sub>O B、CO<sub>2sub>、H<sub>2sub>O C、细胞物质、CO<sub>2sub>、H<sub>2sub>O D、污泥、CO<sub>2sub>、H<sub>2sub>O
A、C+O<sub>2sub>=CO<sub>2sub> B、C+O<sub>2sub>=CO C、CO+H<sub>2sub>O=CO<sub>2sub>+H<sub>2sub> D、C+H<sub>2sub>O=CO+H<sub>2sub>
A、H<sub>2sub>B<sub>3sub>O<sub>6sub> B、H<sub>2sub>B<sub>4sub>O<sub>7sub> C、H<sub>2sub>B<sub>2sub>O<sub>3sub> D、H<sub>2sub>B<sub>3sub>O<sub>5sub>
A、Cl<sub>2sub>+H<sub>2sub>0=2HCl+ClO- B、Cl<sub>2sub>+H<sub>2sub>O=HClO+HCl C、Cl<sub>2sub>+H<sub>2sub>0=2H++ClO-+HCl D、Cl<sub>2sub>+H<sub>2sub>0=H++Cl-+HClO