Напишите уравнения возможных реакций взаимодействия железа с серой, хлором, кислородом, азотной кислотой, сульфатом никеля.

1) Fe+S=FeS
2) 3Cl2 + 2Fe = 2FeCl3
3) 2Fe + O2 = 2FeO
 4Fe + 3O2 = 2Fe2O3
 3Fe + 2O2 = Fe3O4 (железная окалина)
4) Fe+HNO3=Fe(NO3)3+NO+H2O
Fe+6HNO3(конц.) = Fe(NO3)3+3NO2+3H2O
Fe + 4HNO3(разб) = Fe(NO3)3 + NO↑ + 2H2O
5) Fe+NiSO4=FeSO4+Ni

Education is an important tool which is very useful in everybody’s life. Education is what differentiates us from other living beings on earth. It makes man the smartest creature on earth. It empowers humans and gets them ready to face challenges of life efficiently. With that being said, education still remains a luxury and not a necessity in our country. Educational awareness needs to be spread through the country to make education accessible. But, this remains incomplete without first analyzing the importance of education. Only when the people realize what significance it holds, can they consider it a necessity for a good life. In this essay on Education, we will see the importance of education and how it is a doorway to success.

Объяснение:

Объяснение:

H2SO4 + 2KOH = K2SO4 + 2H2O

2H(+) + SO4(2-) + 2K(+) + 2OH(-) = 2K(+) + SO4(2-) + 2H2O

H(+) + OH(-) = H2O

H2SO4 + BaCl2 = BaSO4↓ + 2HCl

2H(+) + SO4(2-) + Ba(2+) + 2Cl(-) = BaSO4↓ + 2H(+) + 2Cl(-)

Ba(2+) + SO4(2-) = BaSO4↓

3H2SO4 + 2Al(OH)3 = Al2(SO4)3 + 6H2O

6H(+) + 3SO4(2-) + 2Al(OH)3 = 2Al(3+) + 3SO4(2-) + 6H2O

6H(+) + 2Al(OH)3 = 2Al(3+) + 6H2O

H2SO4 + ZnO = ZnSO4 + H2O

2H(+) + SO4(2-) + ZnO = Zn(2+) + SO4(2-) + H2O

2H(+) + ZnO = Zn(2+) + H2O

H2SO4 + Na2S = Na2SO4 + H2S↑

2H(+) + SO4(2-) + 2Na(+) +S(2-) = 2Na(+) + SO4(2-) + H2S↑

2H(+) + S(2-) = H2S↑

2KOH + Cu(NO3)2 = Cu(OH)2↓ + 2KNO3

2K(+) + 2OH(-) + Cu(2+) + 2NO3(-) = Cu(OH)2↓ + 2K(+) + 2NO3(-)

Cu(2+) + 2OH(-) = Cu(OH)2↓

KOH + Al(OH)3 = K[Al(OH)4]

K(+) + OH(-) + Al(OH)3 = K(+) + [Al(OH)4](-)

OH(-) + Al(OH)3 = [Al(OH)4](-)

Cu(NO3)2 + Na2S = CuS↓ + 2NaNO3

Cu(2+) + 2NO3(-) + 2Na(+) + S(2-) = CuS↓ + 2Na(+) + 2NO3(-)

Cu(2+) + S(2-) = CuS↓