Question

Write 25 balanced chemical equations giving information
about state temp. catalyst etc present
​

Answer 1

Answer:

1.  N2 +   H2 g   NH3  

2.   S8 +   O2 g   SO3  

3.  HgO g  Hg +   O2  

4.  Zn +   HCl g  ZnCl2 +  H2  

5.   SiCl4 +  H2O g  H4SiO4 +  HCl  

6.   Na +   H2O g  NaOH +  H2  

7.   H3PO4 g  H4P2O7 +  H2O  

8.  Si2H3 +  O2 g   SiO2 +  H2O  

9.   Al(OH)3 +  H2SO4 g  Al2(SO4)3 +   H2O  

10.   Fe +   O2 g   Fe2O3  

11.   Fe2(SO4)3 +   KOH g  K2SO4 +  Fe(OH)3

12.  FeS2 +  O2 g   Fe2O3 +  SO2  

13.   Al +   FeO g  Al2O3 +  Fe  

14.  Na2CO3 +  HCl g  NaCl +  H2O +  CO2  

15.   K +   Br2 g  KBr  

16.   P4 +   O2 g   P2O5  

17.   C2H2 +  O2 g   CO2 +   H2O  

18.   K2O +   H2O g  KOH  

19.   H2O2 g  H2O +  O2  

20.  SiO2 +  HF g   SiF4 +  H2O  

21.   C +   H2O g  CO +   H2  

22.   KClO3 g  KCl +   O2  

23.   H3AsO4 g   As2O5 +  H2O  

24.   KClO3 g  KClO4 +  KCl  

25.  P4O10 +  H2O g  H3PO4

Explanation:

Answer 2

Answer:

Agriculture is the science, art and practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in cities. Wikmia

Meat: 259

Fish (2001 estimate): 130

Vegetable fiber: 30

Fruit: 503

Cereals: 2,263

Vegetables and melons: 866