Question

question 4 (1 point) which of the following correctly gives the correct coefficients for the reaction below? n₂h4(g) + h₂o2(l) → n₂(g) + h₂o(g) 1,1,1,1 1,2,1,4 1,4,1,4 2,4,2,4

Explanation:

Step1: Balance the nitrogen atoms

The number of nitrogen atoms in \(N_2H_4\) is \(2\) and in \(N_2\) is \(2\). So, the coefficient of \(N_2H_4\) and \(N_2\) can be \(1\) for now.

Step2: Balance the hydrogen atoms

In \(N_2H_4\), there are \(4\) hydrogen atoms. In \(H_2O\), hydrogen atoms come from \(H_2O_2\) (after decomposition). Let the coefficient of \(H_2O_2\) be \(2\) (because \(2\times2 = 4\) hydrogen atoms from \(H_2O_2\)).

Step3: Balance the oxygen atoms

We have \(2\) oxygen atoms from \(2H_2O_2\). In \(H_2O\), if the coefficient of \(H_2O\) is \(2\), then oxygen atoms are balanced (\(2\times1= 2\) from \(H_2O\)).

The balanced equation is \(N_2H_4(g)+2H_2O_2(l)
ightarrow N_2(g) + 4H_2O(g)\)

Answer:

1, 2, 1, 4