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Select the correct answer from each drop-down menu.

Identify the type of reaction represented by each equation.

A: [tex]\(H_2 + Cl_2 \rightarrow 2 HCl\)[/tex]
B: [tex]\(CH_4 + 2 O_2 \rightarrow CO_2 + 2 H_2O\)[/tex]

Equation A represents a [tex]\(\square\)[/tex] reaction, and equation B represents a [tex]\(\square\)[/tex] reaction.

Sagot :

GinnyAnswer
To identify the type of reaction represented by each equation, let's examine each one in detail.

Equation A: [tex]\( H_2 + Cl_2 \rightarrow 2 HCl \)[/tex]

1. Reactants: [tex]\( H_2 \)[/tex] (Hydrogen) and [tex]\( Cl_2 \)[/tex] (Chlorine).
2. Product: [tex]\( HCl \)[/tex] (Hydrochloric acid).

In this reaction, two simpler substances, hydrogen and chlorine, combine to form a more complex product, hydrochloric acid. This type of reaction where two or more simple substances combine to form a more complex substance is known as a synthesis reaction (also called a combination reaction).

Equation B: [tex]\( CH_4 + 2 O_2 \rightarrow CO_2 + 2 H_2O \)[/tex]

1. Reactants: [tex]\( CH_4 \)[/tex] (Methane) and [tex]\( O_2 \)[/tex] (Oxygen).
2. Products: [tex]\( CO_2 \)[/tex] (Carbon dioxide) and [tex]\( H_2O \)[/tex] (Water).

In this reaction, methane, a hydrocarbon, reacts with oxygen to produce carbon dioxide and water. This is a classic example of a combustion reaction, where a hydrocarbon reacts with oxygen to release energy in the form of light and/or heat, producing carbon dioxide and water as products.

Hence, the correct identification for the types of reactions is:

- Equation A represents a synthesis reaction.
- Equation B represents a combustion reaction.

Select the following from the drop-down menus:

- For Equation A: synthesis reaction.
- For Equation B: combustion reaction.
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