Question

Допишите схемы реакций и сложите химические уравнения! 1) B + ___ ------> B2O3 2) N2 + ___ -----> NO 3) ___ + ____ -----> CaO 4) CH4 + O2 ----> ___ + ____

Answer 1

4B + 3О2 ------> 2B2O3
2) N2 + О2 -----> 2NO
3) 2Са + О2 -----> 2CaO
4) CH4 + 2O2 ----> СО2 + 2Н2О

Answer 2

1. B + 3O2 ------> 2B2O3 (Boron reacts with oxygen to form boron trioxide)

2. N2 + O2 ------> 2NO (Nitrogen reacts with oxygen to form nitric oxide)

3. Ca + O2 ------> 2CaO (Calcium reacts with oxygen to form calcium oxide)

4. CH4 + 2O2 ------> CO2 + 2H2O (Methane reacts with oxygen to form carbon dioxide and water)