Question

question 1
what are the coefficients that balance the following equation?
_ h₂s + _ o₂ → _ h₂o + _ so₂
○ 1, 3, 1, 1
○ 2, 3, 1, 1
○ 2, 4, 2, 2
○ 2, 3, 2, 2

Explanation:

Step1: Balance hydrogen atoms

Let the coefficients be \(a\), \(b\), \(c\), \(d\) for \(H_2S\), \(O_2\), \(H_2O\), \(SO_2\) respectively. So the equation is \(aH_2S + bO_2
ightarrow cH_2O + dSO_2\).
For hydrogen atoms: \(2a = 2c\), so \(a = c\).

Step2: Balance sulfur atoms

For sulfur atoms: \(a=d\).

Step3: Balance oxygen atoms

For oxygen atoms: \(2b=c + 2d\). Substitute \(c=a\) and \(d=a\) into the oxygen - balancing equation, we get \(2b=a + 2a=3a\).
Let \(a = 2\) (to get integer coefficients), then \(c = 2\), \(d = 2\), and \(2b=3\times2\), so \(b = 3\).

Answer:

\(2\), \(3\), \(2\), \(2\) (the fourth option)