Question

1. The products of a combustion reaction do NOT include ______.

a. water
b. carbon dioxide
c. carbon monoxide
d. hydogen

2. Which of the following is a blanced equation representing the decomposition of lead(IV) oxide?

a. PbO2 -> Pb + 2O
b. PbO2 -> Pb + O2
c. Pb2O -> 2Pb + O
d. PbO -> Pb + O2

Answer 1

Hey there!

1.Hydrogen
2.PbO₂=Pb+O₂

Hope this helps!

Answer 2

Answer: 1. The products of a combustion reaction do NOT include hydrogen.

2.
`PbO_(2) \rightarrow Pb + O_(2)` is the decomposition reaction of lead(IV) oxide.

Step-by-step explanation:

1. Combustion reaction is a reaction in which a hydrocarbon reacts in the presence of oxygen in order to produce water and carbon dioxide.

For example,
`CH_(4) + 2O_(2) \rightarrow CO_(2) + 2H_(2)O` is a combustion reaction.

Thus, we can conclude that the products of a combustion reaction do NOT include hydrogen.

2. An equation is balanced when number of reactants equal the number of products.

Decomposition reaction of lead(IV) oxide is as follows.

`PbO_(2) \rightarrow Pb + O_(2)`

Here, the number of both reactants and products are equal. Thus, it is a balanced equation.