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Explain the term - hydrolysis yield ammonium ion
In addition to ammonium compounds, materials such as urea which, upon hydrolysis yield ammonium ion, are again a potential source of acidity. The phosphorus and potassium fertilizers commonly used have little effect on soil pH unless they also contain nitrogen. The appropriate acid forming capacity of some fertilizer materials expressed in kg of CaCO3 needed to neutralise the acidity produced by 100 kg nitrogen supplied are as given below:
Cement and concrete Secure a small bag of Portland cement. Have the pupils mix it with water and put it in tin can covers, paper cups, or small pasteboard boxes unless it harde
alimentation
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I need help with a few homework questions...We had a substitute, and I didn''t get the chance to finish reading the chapter.
what does homogenious mean?
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