Question

questions:

1. balance this reaction:

____ ch₄ + __ o₂ → __ co₂ + ____ h₂o

1. what type of reaction is this? __________________________

Explanation:

Step1: Balance carbon atoms

There is 1 carbon atom in \(CH_4\) and 1 carbon atom in \(CO_2\). So, the coefficient for \(CH_4\) and \(CO_2\) is 1.

$$CH_4+\text{__}O_2 ightarrow CO_2+\text{__}H_2O$$

Step2: Balance hydrogen atoms

There are 4 hydrogen atoms in \(CH_4\). In \(H_2O\), each molecule has 2 hydrogen atoms. So, the coefficient for \(H_2O\) is 2.

$$CH_4+\text{__}O_2 ightarrow CO_2 + 2H_2O$$

Step3: Balance oxygen atoms

On the right - hand side, there are \(2 + 2\times1=4\) oxygen atoms (2 from \(CO_2\) and 2 from \(2H_2O\)). In \(O_2\), each molecule has 2 oxygen atoms. So, the coefficient for \(O_2\) is 2.

$$CH_4 + 2O_2 ightarrow CO_2+2H_2O$$

For the second question, this is a combustion reaction. A combustion reaction is a reaction in which a substance reacts with oxygen, usually with the release of heat and light. Here, \(CH_4\) (methane) reacts with \(O_2\) (oxygen) to produce \(CO_2\) (carbon dioxide) and \(H_2O\) (water).

Answer:

1. \(1CH_4 + 2O_2

ightarrow1CO_2+2H_2O\)

1. Combustion reaction