Question

1 elección múltiple 1 punto which of the following explains why liquids can flow and solids cannot? solids have strong forces that hold the particles together. solids weigh more than liquids and gases. solids have particles that do not move. solids have larger particles than gases and liquids. 2 fórmula 1 punto determine the density of a regular solid with a mass of 298.9 g and dimensions of 8.3cm x 2.5cm x 2.6cm. round your answer respuesta

Explanation:

1.

In solids, strong intermolecular forces hold particles in fixed positions, restricting their movement and preventing flow. Liquids have weaker intermolecular forces allowing particles to move past one another, enabling flow.

Step1: Calculate volume of the solid

The volume $V$ of a rectangular - solid is given by $V = l\times w\times h$. Here, $l = 8.3\ cm$, $w = 2.5\ cm$, and $h = 2.6\ cm$. So, $V=8.3\times2.5\times2.6 = 53.95\ cm^{3}$.

Step2: Calculate density

The density $
ho$ is given by the formula $
ho=\frac{m}{V}$, where $m = 298.9\ g$ and $V = 53.95\ cm^{3}$. So, $
ho=\frac{298.9}{53.95}\approx5.54\ g/cm^{3}$.

Answer:

Solids have strong forces that hold the particles together.

2.