Question

1) balancing the chemical equations a) mg+o2---mgo b)zn+h2 s04---znso4 + h2. c) fe+h2o----fe2 03-----h2

Answer 1

a) 2mg+o2---2mgo
b) already balanced.
c) 2fe+3h2o--- fe2o3+3h2

Answer 2

a) 2Mg + O2 ==> 2MgO

b) Zn + H2SO4 ==> ZnSO4 + H2

c) 2Fe + 3H2O ==> Fe2O3 + 3H2

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