Question

Hey, guys! Can you answer the following:

1. Differentiate between solids, liquids and gases in a tabular form.

2. Explain how solute dissolves in a solvent with the help of a diagram.

3. Explain the difference between physical and chemical changes with the help of examples.

Answer 1

Answer:

1. solid has definite volume and shape, a liquid has a definite volume but no definite shape, and a gas has neither a definite volume nor shape. The change from solid to liquid usually does not significantly change the volume of a substance. ... This state has no definite shape

2. Three states of matter exist – solid, liquid, and gas. Solids have a definite shape and volume. Liquids have a definite volume, but take the shape of the container. Gases have no definite shape or volume.

3. Physical change is a temporary change. A chemical change is a permanent change. ... Some examples of physical change are freezing of water, melting of wax, boiling of water, etc. A few examples of chemical change are digestion of food, burning of coal, rusting, etc.

Answer 2

Explanation:

1)Solids have a definite shape to them. Liquids do not have a definite shape. Gases do not have a definite shape. The intermolecular space between solids is absent.

2)A solute will dissolve in a solvent if the solutes solvent forces of attraction are great enough to overcome the solutes solute and solvents solvent forces of attraction. A solute will not dissolve if the solutes solvent forces of attraction are weaker than individual solute and solvent intermolecular attractions.

3)Physical change is a temporary change. A chemical change is a permanent change. ... Some examples of physical change are freezing of water, melting of wax, boiling of water, etc. A few examples of chemical change are digestion of food, burning of coal, rusting, etc.