Question

大神帮忙。

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Answer 1

1. Al + 4 HNO3(稀) = =Al(NO3)3 + NO ↑+ 2 H2O

2. 3As2S3＋28HNO3＋4H2O＝6H3AsO4＋9H2SO4＋28NO↑

3. Fe+4HNO3(稀)==Fe(NO3)3+NO↑+2H2O

4. 3Fe+8HNO3(稀)==3Fe(NO3)2+2NO↑+4H2O

5. 8Fe+30HNO3(稀)===8Fe(NO3)3+3N2O↑+15H2O

6. 10Fe+ 36HNO3 (稀)==3N2↑+10Fe(NO3)3+18H2O 

7. 8 Fe + 30 HNO3(极稀) == 8 Fe(NO3)3 + 3 NH4NO3 + 9 H2O

8. 3FeO+10HNO3(稀)==3Fe(NO3)3+NO+5H2O

9. 3H2S+2HNO3(稀)==3S↓+2NO↑+4H2O

10. 3Na2S+8HNO3(稀)==6NaNO3+3S↓+2NO↑+4H2O

11. 3Na2SO3+2HNO3(稀)==3Na2SO4+2NO↑+H2O

12. 4HNO3(浓) =光= 4NO2 + O2 + 2H2O

13. C+4HNO3(浓)=加热=CO2↑+4NO2↑+2H2O

14. S + 6HNO3 =加热= H2SO4 + 6NO2↑+ 2H2O 

15. 3P4+20HNO3+8H2O==12H3PO4+20NO↑

16. N2+3H2=高温高压、催化剂=2NH3

17. 2NH4Cl+Ca(OH)2====CaCl2+2NH3↑+2H2O

18. NH3·H2O + CaO = Ca(OH)2 + NH3↑

19. NH4+ +OH- ==NH3↑+H2O

20. NH3·H2O =Δ= NH3↑ + H2O

21. Li3N + 3H2O(g) == 3 LiOH + NH3

22. 方法一：用湿润的红色石蕊试纸检验,试纸变蓝证明有氨气

    方法二：用玻璃棒蘸浓盐酸或者浓硝酸靠近,产生白烟,证明有氨气

23. 含铵根离子的试剂中加入强碱(常用氢氧化钠)并加热,如有氨气(可用湿润的红色石蕊试纸变蓝并闻气味的方法检验氨气)放出可确定有铵根离子
    

Answer 2

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