Because their molecules are more tightly packed. Massdensity = ---------- Volume
So more densely packed molecules means more mass per unit volume. Hence metals are denser than non-metals.
Answer:

Explanation:
Hola,
En este caso, usando la ecuación del gas ideal, podemos calcular facilmente la presión a partir de:

Por lo que despejando para la presión obtenemos:

Así, calculamos:

¡Saludos!
Copper II sulfate solution is blue.
A straight line on a distance va time graph represents constant speed