初三化学化肥作用的简单口诀!急!!! 初三化学关于化肥那章知识点

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1\u3001\u76d0\uff0b\u9178\uff1d\u65b0\u76d0\uff0b\u65b0\u9178
\u2460CaCO3 + 2HCl == CaCl2 + H2O + CO2\u2191(\u5236\u53d6CO2\u7684\u539f\u7406\uff09
\u2461 Na2CO3 + 2HCl = 2NaCl + H2O + CO2 \u2191
\u2462NaHCO3+HCl==NaCl+H2O+CO2\u2191(\u706d\u706b\u7684\u539f\u7406\uff09
2\u3001\u76d0\uff0b\u78b1\uff1d\u65b0\u76d0\uff0b\u65b0\u78b1
\u2460Na2CO3+Ca(OH)2==CaCO3\u2193+2NaOH
\u2461Na2SO4+Ba(OH)2==BaSO4\u2193+2NaOH
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\u2460Na2SO4+BaCl2==BaSO4\u2193+2NaCl
\u2461AgNO3+NaCl==AgCl\u2193+NaNO3
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(1)氮,磷,钾---肥料三要素!
(2)复合肥---至少提供2种要素!
(3)速效肥易溶,长效肥难溶!

氮(淡)叶磷(零)花果,钾(假)茎

叶氮,果磷,茎钾

  • 鍒濅笁鍖栧鍖栬偉浣滅敤鐨勭畝鍗曞彛璇!鎬!!!
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