成品尿素中H<sub>2</sub>O的含量超高,颗粒强度下降,极易发生()和水解。<p> 成品尿素中H<sub>2</sub>O的含量超高,颗粒强度下降,极易发生()和水解。</p>
A、A.破碎
B、B.结垢
C、C.缩合
D、D.挥发
A、A.破碎
B、B.结垢
C、C.缩合
D、D.挥发
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、CS<sub>2sub>+H<sub>2sub>O→COS+H<sub>2sub>S B、CS<sub>2sub>+2H<sub>2sub>O→CO<sub>2sub>+2H<sub>2sub>S C、CS<sub>2sub>+H<sub>2sub>O→CO+H<sub>2sub>S D、2CS<sub>2sub>+H<sub>2sub>O→2COS+<sub>2sub>
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、N<sub>2sub>和CO<sub>2sub> B、N<sub>2sub>和H<sub>2sub>O C、CO<sub>2sub>和H<sub>2sub>O D、CO和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>S+1/2O<sub>2sub>=1/2S<sub>2sub>+H<sub>2sub>S B、CH<sub>4sub>+2O<sub>2sub>=CO<sub>2sub>+2H<sub>2sub>O C、2H<sub>2sub>S+3O<sub>2sub>=2SO<sub>2sub>+2H<sub>2sub>O D、COS+H<sub>2sub>O=CO<sub>2sub>+H<sub>2sub>S
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、H<sub>2sub>S<sub>2sub>O<sub>6sub> B、H<sub>2sub>SO<sub>4sub> C、H<sub>2sub>SO<sub>3sub> D、H<sub>2sub>S<sub>2sub>O<sub>7sub>