_Na2S + _HCl -> NaCl + H2S which of the following coefficients would balance this equation?

a. 2, 1, 2, 1
b. 1, 2, 1, 2
c. 1, 2, 2, 1
d. 2, 1, 1, 2

C: 1, 2, 2, 1

Explanation:

_Na2S + _HCl -> NaCl + H2S (unbalanced)

1Na2S + 2HCl -> 2NaCl + 1H2S

Na2S + 2HCl → 2NaCl + H2S (Balanced)

Hope this helps:)

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante

answer; capital earns interest; entrepreneurship receives a profit or incurs a loss;