Question

What type of chemical reaction is shown below?

C₂H₆ + O₂ --> CO₂ + H₂O

Na + Cl₂ --> NaCl

H₂O ---> H₂ + O₂

H₂ + LiCl ---> HCl + Li​

What is the correct order of coefficients to correctly balance the equation shown below?

____NH₄Cl + ____MgO ---> ____(NH₄)₂O + ____MgCl₂

C₂H₆ + ___ O₂ ---> CO₂ + H₂O​

Na + Cl₂ ---> ___ NaCl

Answer 1

1. C2H6 + O2 ---> CO2 + H2O

This is a combustion reaction. A hydrocarbon reacts with Oxygen to produce CO2 and water in a combustion reaction.

2. Na + Cl2 ---> NaCl

Combination reaction.In a combination reaction, two or more elements or compounds combine to produce another compound.

3. H2O ---> H2 + O2

Disassociation Reaction. A compound breaks apart into two or more elements or compounds in a disassociation reaction.

4. H2 + LiCl --> HCl + Li

Displacement Reaction. In a displacement reaction, the more reactive element displaces the less reactive element from a compound.

Balanced equations-

1 NH4Cl + MgO --> (NH4)2O + MgCl2

2NH4Cl + MgO ---> (NH4)2O + MgCl2 (Balanced)

2. C2H6 + O2 ---> CO2 + H2O

2C2H6 + 7O2 ---> 4CO2 + 6H2O (Balanced)

C = 4(reactant side) 4(product side)

H = 12(reactant side) 12(product)

O = 14(reactant) 14(product)

3.Na + Cl2 ---> NaCl

2Na + Cl2 ---> 2NaCl ( Balanced)