Job Recruitment Website - Zhaopincom - (2005? Luzhou) Read the materials and packaging instructions and answer the following questions: Materials: In a small warehouse in the southern countryside, a batch of bagged chemicals are piled up.
(2005? Luzhou) Read the materials and packaging instructions and answer the following questions: Materials: In a small warehouse in the southern countryside, a batch of bagged chemicals are piled up.
So the answer is: decomposition;
(2) Plant nutrient elements include nitrogen, phosphorus and potassium, which contain nitrogen according to the chemical formula of ammonium bicarbonate;
So the answer is: nitrogen;
(3) Ammonium bicarbonate reacts with hot lime to generate ammonia, calcium carbonate and water. The reaction equation is: ca (oh) 2+nh4co3 ═ CaCO3 ↓+NH3 ↑+2h2o.
So the answer is: ca (oh) 2+nh4hco3 ═ CaCO3 ↓+NH3 ↑+2h2o.
(4) The mass ratio of nitrogen, hydrogen, carbon and oxygen:14: (1× 5):12: (16× 3) =14: 5:/kloc-0.
So the answer is: 14: 5: 12: 48.
(5) The mass fraction of nitrogen in ammonium bicarbonate is1479×100% ≈17.7%.
The mass of nitrogen in 50Kg ammonium bicarbonate is 50 kg× 17.7% ≈ 8.9 kg.
So the answer is: 8.9.
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