QUESTION IMAGE
Question
in the compound potassium nitride, nitride is
an anion
all of these
negatively charged
a nonmetal
question 23
the name of the compound $v_2s_3$ is
vanadium sulfide
vanadium (iii) sulfide
vanadium (ii) sulfide
vanadium sulfate
First Question (Potassium Nitride - Nitride Properties)
Nitride (\(N^{3-}\)): es un anión (ion negativo), tiene carga negativa, y nitrógeno es un no metal. Entonces "all of these" es correcto porque cumple todas: anión, cargado negativamente, y no metal.
Step1: Determine oxidation states.
Sulfide (\(S^{2-}\)): en \(S_3\), la carga total del azufre es \(3\times(-2) = -6\). Para que la molécula sea neutra, \(2V + (-6) = 0\) → \(2V = 6\) → \(V = +3\).
Step2: Name the compound.
El metal (vanadio) tiene estado de oxidación +3, así que se escribe "Vanadium (III) sulfide".
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B. all of these