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Use the equation to answer the question.

CH4 + _____Cl2 → CCl4 + _____HCl

Which numbers balance this equation?

(1 point)
Responses

4, 4
4, 4

3, 2
3, 2

2, 4
2, 4

1, 2
1, 2

1 answer

To balance the equation \( \text{CH}_4 + ____ \text{Cl}_2 \rightarrow \text{CCl}_4 + ____ \text{HCl} \), we first identify the number of each type of atom on both sides of the equation.

On the left side:

  • Carbon (C): 1 (from CH₄)
  • Hydrogen (H): 4 (from CH₄)
  • Chlorine (Cl): 2 (from Cl₂)

On the right side:

  • Carbon (C): 1 (from CCl₄)
  • Hydrogen (H): 1 (from HCl)
  • Chlorine (Cl): 4 (from CCl₄) + 1 (from HCl) = 5

To balance it, we can trial and error with the provided options.

Testing the options:

  1. Option (4, 4):

    • 4 CH₄ + 4 Cl₂ → 4 CCl₄ + 4 HCl
    • Left: C = 4, H = 16, Cl = 8
    • Right: C = 4, H = 4, Cl = 16
    • Not balanced.

  2. Option (3, 2):

    • 3 CH₄ + 2 Cl₂ → 3 CCl₄ + 2 HCl
    • Left: C = 3, H = 12, Cl = 4
    • Right: C = 3, H = 2, Cl = 14
    • Not balanced.

  3. Option (2, 4):

    • 2 CH₄ + 4 Cl₂ → 2 CCl₄ + 4 HCl
    • Left: C = 2, H = 8, Cl = 8
    • Right: C = 2, H = 4, Cl = 8
    • Not balanced.

  4. Option (1, 2):

    • 1 CH₄ + 2 Cl₂ → 1 CCl₄ + 2 HCl
    • Left: C = 1, H = 4, Cl = 4
    • Right: C = 1, H = 2, Cl = 6
    • Not balanced.

Correct Balancing:

Let's try balancing it directly to find if a straightforward approach shows us the answer: To balance:

  1. Chlorine: CCl₄ has 4 Cl, so we need 2 Cl₂ (since each Cl₂ gives 2 Cl).
  2. Hydrogen: We will need 4 HCl for 4 H.

Final Balanced Equation:

  • Therefore, 1 CH₄ + 2 Cl₂ → 1 CCl₄ + 4 HCl.

Looks like I miscomputed previously; reviewing the equation, we notice:

The numbers that balance the original equation accurately are:

  • 1, 4 for CH₄ & HCl respectively.

Thus the correct answer isn't listed explicitly among your options, however 1 and 4 would be the correct combination to balance if they were present.

If I strictly follow provided pairs, it's evident that: The balanced answer set (1, 4) isn't present in the multiple choice responses, further correcting confirms an error in logical extrapolation from provided or implied conditions. Thus: Reviewing acceptable responses lists significant errors, check reevaluation of setup or probable amendments for clarity adjustments; choice exempts and correct predictors align.