Question

Раставти коэффицентыи указать тип химической реакции KBr+CI2=KCI+Br2 Zn+O2=ZnO3 Fe(OH)3+HCI=FeCI+H2O H2+O2=H2O

Answer 1

Ответ:

2 KBr  + Cl2  → 2 KCl + Br2 Реакция обмена

2 Zn + 3 O2 → 2 ZnO3 Реакция соединения

3 HCl + Fe(OH)3 → FeCl3 + 3 H2O Реакция замещения

2H2+O2=2H2O Реакция соединения

Answer 2

2KBr + Cl2= 2KCl + Br2
2Zn+ 3O2=2ZnO3
2H2+O2=2H2O
3 не знаю

Answer 3

Chemical Equations and Types of Reactions

Chemical equations represent the chemical reactions that occur between different substances. In a chemical equation, the reactants are written on the left side of the equation, and the products are written on the right side. The coefficients in front of the chemical formulas indicate the relative amounts of each substance involved in the reaction.

Let's analyze the given chemical equations and identify the coefficients and types of reactions for each equation.

1. KBr + Cl2 = KCl + Br2: - This equation represents a single replacement reaction or displacement reaction. In this type of reaction, one element replaces another element in a compound. In this case, chlorine (Cl2) replaces bromine (Br) in potassium bromide (KBr).

2. Zn + O2 = ZnO3: - The given equation is not balanced correctly. The correct balanced equation for the reaction between zinc (Zn) and oxygen (O2) is: 2 Zn + O2 = 2 ZnO - This equation represents a combination reaction or synthesis reaction. In this type of reaction, two or more substances combine to form a single compound. In this case, zinc (Zn) combines with oxygen (O2) to form zinc oxide (ZnO).

3. Fe(OH)3 + HCl = FeCl3 + H2O: - This equation represents a double replacement reaction or metathesis reaction. In this type of reaction, the positive and negative ions of two compounds switch places to form two new compounds. In this case, iron(III) hydroxide (Fe(OH)3) reacts with hydrochloric acid (HCl) to form iron(III) chloride (FeCl3) and water (H2O).

4. H2 + O2 = H2O: - The given equation is not balanced correctly. The correct balanced equation for the reaction between hydrogen (H2) and oxygen (O2) is: 2 H2 + O2 = 2 H2O - This equation represents a combination reaction or synthesis reaction. In this type of reaction, two or more substances combine to form a single compound. In this case, hydrogen (H2) combines with oxygen (O2) to form water (H2O).

Please note that the coefficients in front of the chemical formulas are used to balance the equations, ensuring that the number of atoms of each element is the same on both sides of the equation.