Final answer:
The given chemical reactions can be classified as combination, decomposition, single replacement, double replacement, or combustion reactions. Each reaction is identified and explained in detail.
Step-by-step explanation:
a) Chemical Reaction Classification
The chemical reactions can be classified as follows:
- CuO(s) + 2HCl(aq) → CuCl₂(aq) + H₂O(l) - This is a combination reaction because two substances combine to form one product.
- 2Al₂O₃(s) → 4Al(s) + 3O₂(g) - This is a decomposition reaction because one substance breaks down into multiple products.
- BaCl₂(aq) + K₂CO₃(aq) → BaCO₃(s) + 2Cl(aq) - This is a double replacement reaction because the positive ions of two compounds swap places.
- Pb(s) + O₂(g) → PbO₂(s) - This is a combination reaction because two substances combine to form one product.
- C₃H₂(g) + 7O₂(g) → 5CO₂(g) + 4H₂O(l) - This is a combustion reaction because a hydrocarbon reacts with oxygen to produce carbon dioxide and water.
- Zn(s) + CuCl₂(aq) → Cu(s) + ZnCl₂(aq) - This is a single replacement reaction because one element replaces another in a compound.
b) Types of Chemical Reactions
The types of chemical reactions involved in the given reactions are:
- Combination reaction
- Decomposition reaction
- Double replacement reaction
- Combination reaction
- Combustion reaction
- Single replacement reaction
c) Balancing Chemical Equations
To balance a chemical equation, you need to make sure that there are an equal number of atoms on both sides of the equation. The coefficients are used to balance the equation.
d) Reaction Analysis in Chemistry
Reaction analysis in chemistry involves studying and understanding the chemical reactions, their products, and the changes that occur during the reaction. This includes identifying the type of reaction, balancing the equation, and analyzing the reactivity and properties of the substances involved.