nitrogen dioxide is a gas commonly found in polluted air. it is produced when nitric oxide in the air reacts with oxygen gas. consider the following reaction: 6 molecules of nitric oxide (no) react with 3 molecules of oxygen (o₂) to produce some amount of nitrogen dioxide (no₂). complete the table below. chemical element | number of atoms in the reaction n | o | during this reaction, how many molecules of nitrogen dioxide (no₂) are produced?

Question

Accepted Answer

### Part 1: Number of N and O atoms in the reaction

#### Step 1: Calculate number of N atoms
Each NO molecule has 1 N atom. There are 6 NO molecules. So number of N atoms = $ 6 \times 1 = 6 $.

#### Step 2: Calculate number of O atoms
- From NO: Each NO has 1 O atom, 6 NO molecules give $ 6 \times 1 = 6 $ O atoms.
- From $ O_2 $: Each $ O_2 $ has 2 O atoms, 3 $ O_2 $ molecules give $ 3 \times 2 = 6 $ O atoms.
- Total O atoms = $ 6 + 6 = 12 $.

### Part 2: Number of $ NO_2 $ molecules produced

#### Step 1: Write the balanced chemical equation
The reaction is $ 2NO + O_2
ightarrow 2NO_2 $ (simplified from 6 NO and 3 $ O_2 $, divide by 3: $ 2NO + O_2
ightarrow 2NO_2 $). For 6 NO (which is 3 times 2 NO) and 3 $ O_2 $ (3 times 1 $ O_2 $), the moles of $ NO_2 $ produced will be 3 times 2, so 6.

Alternatively, using atom conservation:
- Each $ NO_2 $ has 1 N and 2 O.
- We have 6 N atoms, so number of $ NO_2 $ molecules from N: $ \frac{6}{1} = 6 $.
- We have 12 O atoms, number of $ NO_2 $ molecules from O: $ \frac{12}{2} = 6 $. So 6 molecules of $ NO_2 $ are produced.

### Final Answers

- Number of N atoms: $ \boldsymbol{6} $
- Number of O atoms: $ \boldsymbol{12} $
- Number of $ NO_2 $ molecules: $ \boldsymbol{6} $

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QUESTION IMAGE

Question

Explanation:

Part 1: Number of N and O atoms in the reaction

Step 1: Calculate number of N atoms

Step 2: Calculate number of O atoms

Part 2: Number of \( NO_2 \) molecules produced

Step 1: Write the balanced chemical equation

Final Answers

Answer: