16平%B7%BD%C8%ED铜%CF%DF%D4%F5么%BD樱%BF
%BD%A8%B7%BF%D4%F1%C8%D5%D7%F8%C4%CF%CF%F2%B1%B1%28%...
%CC%EC%B5%C4%C8%CE%CE%F1%D5%FD%D4%DA%B7%B5%BA%BD%A3%AC%BE%A1%B9%DC%D3%EB%D3%A2%B9%FA%C7%B1%CD%A7%B7%A2%C9%FA%CF%E0%D7%B2%BA%F3%B...
%BD%F1%C4%EA%BF%BC340%C4%DC%C9%CF%C4%C4%B8%F6%D1%A7%...
BD%F1%C4%EA%BF%BC340%C4%DC%C9%CF%C4%C4%B8%F6%D1%A7%D0%A3%B5%C4%CD%C1%C4%BE%B9%A4%B3%CC
...则混合物中氧元素的质量分数为( )A.16%B.32%C.52%D...
解答:解:在FeSO4和Fe2(SO4)3组成的混合物中,硫元素与氧元素的质量比=32:(16×4)=1:2,由于混合物中硫元素的质量分数为16%,则混合物中氧元素的质量分数=16%×2=32...
...氢的质量分数是多少?A.59.5%B.10%C.25%D.16%
解答:解:设过氧化氢溶液的质量为m克 过氧化氢的质量为n克,过氧化氢溶液中氢元素的质量分数为8%,则mg×8%=ng×1×234×100%+(m-n)g×1×218×100% ...
...BB%FA%CF%B5%CD%B3%B1%C0%C0%A3%D4%F5%C3%B4%B0%EC...
C8%FD%D0%C7%CA%D6%BB%FAi9082%CB%A2%BB%FA%CF%B5%CD%B3%B1%C0%C0%A3%D4%F5%C3%B4%B0%EC
...%B5%D8%B3%B5%CB%AB%D0%DD%C8%D5%CF%DE%D0%D0%B9%E6...
%d6%d8%c7%ec%b3%bf%cd%f8%bc%c7%d5%df%d2%c1%d3%c0%be%fc+20%c8%d518%3a40%b1%a8%b5%c0%a3%a920%c8%d5%c9%cf%ce%e79%b5%e3%a3%ac%ce%f7%c4...
%BF%EC%BF%EC%D3%CE%CF%B7%C0%EF%C3%E6%CF%C2%B5%C4%CF...
BF%EC%BF%EC%D3%CE%CF%B7%C0%EF%C3%E6%CF%C2%B5%C4%CF%C0%B5%C1%C1%D4%B3%B5%CA%D6%C4%DC%B4%F8%BD%F8MO
%BD%AD%CE%F7%C6%BC%CF%E7%C0%B6%B6%DC%BC%DD%D0%A3%BF...
%B4%F3%D1%a72011%BD%EC%B1%CF %D2%B5%C9%FA%被%CD%D2%B5%CB%AB%D1%A1%BB%E1%D4%DA%B8%C3%D0%A3%B5%DA%C8%FD%D4 %CB%B6%AF%B3%A1%被%D9%D0%D0%A1%...
%B8%F1%C1%A6%D2%A3%BF%D8%C6%F7%CF%D4%CA%BE%BA%CD%D7%...
是技术问题 ，空调的遥控器带显示屏功能的通病
%B3%A4%D4%AB%C0%CF%D5%BE%B5%BD%C9%CF%BA%A3%B3%B5%C9...
B3%A4%D4%AB%C0%CF%D5%BE%B5%BD%C9%CF%BA%A3%B3%B5%C9%CF%B5%C4%B5%E7%BB%B0%BA%C5%CB%AD%D6%AA%B5%C0