Chemistry Archive: Questions from May 01, 2023
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Una solución de alcohol contiene 35,0 g de propanol (C3H7OH) y
150,0 g de etanol. Calcule el porcentaje en masa de propanol: 45,6,
18,9, 25,3. 67,9, 81,1
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1. ¿Cuántos electrones tiene el
ion vanadio 4+ (V 4+) en cada subnivel?
1s, 2s, 2p, 3s, 3p, 4s, 3d.
opciones = 3, 2, 5, 1, 0, 6, 4.
2. Según su posición en la tabla periódica, ¿qué enlace esper
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¿Cuál es la carga del ion común formado por cada uno de estos
átomos? Ya sea -2, -1, +1 o +2.
S, Br, I, Li, Sr, Mg, Na, Cs, Ba, F y O
¿Cómo se encuentran estos cambios?
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