2. Matter - Students Free Notes

How does temperature affect the solubility of a substance?

Generally, increasing temperature increases the solubility of solid solutes in liquids. For gases, higher temperatures tend to decrease solubility. This is because higher temperatures give molecules more energy to dissolve or escape from the solvent. Related Questions: Can you write the formula of the carbon dioxide gas that we exhale? Define element, compound, and mixture. … Read more

Define physical and chemical properties of matter.

Physical properties are characteristics that can be observed or measured without changing the substance’s chemical identity, such as color, mass, and melting point. Chemical properties, on the other hand, describe how a substance reacts with other substances, forming new products, like flammability or acidity. Related Questions: Can you write the formula of the carbon dioxide … Read more

Differentiate between:

a. Colloids and Suspensions Aspect Colloids Suspensions Particle Size 1 nm to 1000 nm Larger than 1000 nm Visibility Cannot be seen by the naked eye. Can be seen by the naked eye. Stability Stable, particles do not settle. Unstable, particles eventually settle. Examples Milk, smoke, fog. Muddy water, sand in water. b. Elements and … Read more