0,1+0,6=0,9(х+у)
х+у=480
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0,1х+0,6у=0,9х-0,9у
0,9х-0,1у=0,6у- 0,9х
х=-(3/8)у
Mр-ра = mв-ва / ω = 20 г / 0,1 = 200 г
1)<span>CH3CH2COO+Ca</span>=<span>C<span>CH3COOCa</span>+H2</span>
2)<span>C3H7OH+2 K=2C3H7OK+H2</span>
<span>3) HCOOH+CH3OH=<span>HCOOCH3 + H2O</span></span>