Question

7.Расставить коэффициенты и определить тип химических реакций 1.Cu + O2---> Cuo 2. H2O------>H2 + O2 3. Fe + HCI -----> FeCI2 + H2 4. NaOH + H2SO4 ----> Na2SO4 + H2O

Answer 1

Приветствую
1. 2Cu + O₂ = 2CuO- реакция соединения
2. 2H₂O = 2H₂ + O₂ - реакция разложения
3. Fe + 2HCl = FeCl₂ + H₂↑- реакция замещения
4. 2NaOH + H₂SO₄ = Na₂SO₄ + 2H₂O - реакция обмена

Answer 2

Chemical Reactions and Balancing Equations

Let's analyze the given chemical reactions and determine the type of reactions and balance the equations.

1. Cu + O2 → CuO 2. H2O → H2 + O2 3. Fe + HCl → FeCl2 + H2 4. NaOH + H2SO4 → Na2SO4 + H2O

Analysis and Balancing of Chemical Reactions

1. Cu + O2 → CuO: - This is a combination reaction where copper (Cu) reacts with oxygen (O2) to form copper oxide (CuO). - To