Question

Identify the type of chemical reaction:

Ex. ZnCl2(aq) + Mg(s) → Zn(s) + MgCl2(aq) -> Single replacement
1. 2KOH(aq) + CuSO4(aq) → Cu(OH)2(s) + K2SO4(aq) -&gt :
2.2Al(s) + 3Br2(l) → 2AlBr3(s) -&gt:
3. 4PBr3(l) → P4(s) + 6Br2(l) -&gt :

Answer 1

The types of chemical reactions for the provided examples are double replacement for 2KOH(aq) + CuSO4(aq) → Cu(OH)2(s) + K2SO4(aq), synthesis for 2Al(s) + 3Br2(l) → 2AlBr3(s), and decomposition for 4PBr3(l) → P4(s) + 6Br2(l).

Step-by-step explanation:

Recognizing the type of chemical reaction involves examining the reactants and the products to identify a pattern. In the provided examples, the reactions are:

• 2KOH(aq) + CuSO₄(aq) → Cu(OH)₂(s) + K₂SO₄(aq) - Double replacement
• 2Al(s) + 3Br₂(l) → 2AlBr₃(s) - Synthesis
• 4PBr₃(l) → P₄(s) + 6Br₂(l) - Decomposition

In a single replacement reaction, one element replaces another in a compound, such as Zn(s) + CuCl₂(aq) → ZnCl₂(aq) + Cu(s). A double replacement reaction involves the exchange of ions between two compounds resulting in two new compounds, exemplified by the reaction 2KOH(aq) + CuSO₄(aq) → Cu(OH)₂(s) + K₂SO₄(aq).