Question

Q3 Indicate which type of chemical reaction (Combination, decomposition, single- displacement, double-displacement or combustion) is being represented in the following reactions: 1. Na3PO4 + 3 KOH  3 NaOH + K3PO4 2. MgCl2 + Li2CO3  MgCO3 + 2 LiCl 3. C6H12 + 9 O2  6 CO2 + 6 H2O 4. 2 AgNO3 + Cu  Cu(NO3)2 + 2 Ag 5. C3H6O + 4 O2  3 CO2 + 3 H2O 6. 2 C5H5 + Fe  Fe(C5H5)2 7. SeCl6 + O2  SeO2 + 3Cl2 8. 2 MgI2 + Mn(SO3)2  2 MgSO3 + MnI4 9. O3  O . + O2 10.2 NO2  2 O2 + N2

Answer 1

Answer:

1. double displacement reaction

2. double displacement reaction

3. combustion

4. single displacement reaction

5. combustion

6. combination

7. decomposition

8. double displacement

9. decomposition

10. decomposition

Explanation:

Answer 2

Chemical Reaction

A chemical reaction occurs when the bonds between reactant molecules are broken, and new bonds are established between product molecules, forming new material.

• Decomposition Reaction - A decomposition reaction occurs when molecules or compounds are broken down into two or more chemically simpler entities.
• Combination Reaction - A combination reaction occurs when two or more molecules are chemically mixed to generate a new substance (compound). The reactions of combination and breakdown are opposed.
• Combustion Reaction - A combustion reaction is an exothermic reaction that releases energy in the form of heat. It's a reaction that produces smoke, water, and heat when fuel and an oxidant (usually air oxygen) come together.
• Single Displacement Reaction- More reactive metal displaces less reactive metal from its salt in these processes. Reactivity series can be used to determine the products in these reactions. The reactivity series is a set of items grouped in decreasing order of reactivity. It indicates that the elements at the top of the reactivity scale are more reactive than those at the bottom.
• Double displacement reaction – Two aqueous ionic compounds exchange their ions (mainly cations) and form two new compounds in a double displacement process.

Answers:-

1. Double Displacement Reaction
2. Double Displacement Reaction
3. Combustion Reaction
4. Single Displacement Reaction
5. Combustion Reaction
6. Combination Reaction
7. Decomposition
8. Double Displacement Reaction
9. Decomposition
10. Decomposition

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