The scenes below represent a chemical reaction between

Chapter 3, Problem 36P

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QUESTION:

The molecular scenes below represent a chemical reaction between elements A (red) and B (green):

Which of the following best represents the balanced equation for the reaction?

\(2 \mathrm{~A}+2 \mathrm{~B} \rightarrow \mathrm{A}_{2}+\mathrm{B}_{2}\)

\(\mathrm{A}_{2}+\mathrm{B}_{2} \rightarrow 2 \mathrm{AB}\)

\(\mathrm{B}_{2}+2 \mathrm{AB} \rightarrow 2 \mathrm{~B}_{2} \mathrm{~A}_{2}\)

\(4 \mathrm{~A}_{2}+4 \mathrm{~B}_{2} \rightarrow 8 \mathrm{AB}\)

Equation Transcription:

2A + 2B A2 + B2 

A2 + B2 2AB

B2 + 2AB 2B2  A2 

4A2 + 4B2 8AB

Text Transcription:

2A + 2B  rightarrow A_2 + B_2

A2 + B_2 rightarrow 2AB

B_2 + 2AB rightarrow 2B_2  A_2

4A_2 + 4B_2 rightarrow 8AB

Questions & Answers

QUESTION:

The molecular scenes below represent a chemical reaction between elements A (red) and B (green):

Which of the following best represents the balanced equation for the reaction?

\(2 \mathrm{~A}+2 \mathrm{~B} \rightarrow \mathrm{A}_{2}+\mathrm{B}_{2}\)

\(\mathrm{A}_{2}+\mathrm{B}_{2} \rightarrow 2 \mathrm{AB}\)

\(\mathrm{B}_{2}+2 \mathrm{AB} \rightarrow 2 \mathrm{~B}_{2} \mathrm{~A}_{2}\)

\(4 \mathrm{~A}_{2}+4 \mathrm{~B}_{2} \rightarrow 8 \mathrm{AB}\)

Equation Transcription:

2A + 2B A2 + B2 

A2 + B2 2AB

B2 + 2AB 2B2  A2 

4A2 + 4B2 8AB

Text Transcription:

2A + 2B  rightarrow A_2 + B_2

A2 + B_2 rightarrow 2AB

B_2 + 2AB rightarrow 2B_2  A_2

4A_2 + 4B_2 rightarrow 8AB

ANSWER:

Solution 36P

Here, we have to identify  the best represents the balanced equation for the reaction to the given picture.

Step 1 of 2

The scenes below represent a chemical reaction between elements A (red) and B (green)

From the picture, In the reactant side  A(red) and B(green) are diatomic molecules.Product side A and B are mixing together.

Therefore, the balanced chemical reaction with smallest whole-number coefficient is as follows.

A2  + B2     2AB …………………………….(1)

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