Front

What is the difference between weight and mass?

Back

Weight is the force exerted by gravity on an object, while mass is the amount of matter in an object and does not change regardless of location.

Front

What are physical properties of matter?

Back

Physical properties are characteristics that can be observed or measured without changing the substance's identity, such as color, density, and boiling point.

Front

What is density?

Back

Density is the mass of an object divided by its volume, typically expressed in g/cm³.

Front

What is a chemical change?

Back

A chemical change occurs when a substance transforms into a different substance with new chemical properties, such as rusting or burning.

Front

What are examples of physical properties?

Back

Examples include color, odor, taste, boiling point, melting point, and solubility.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume.

Front

What is the boiling point of water?

Back

The boiling point of water is 100°C (212°F) at standard atmospheric pressure.

Front

What is flammability?

Back

Flammability is the ability of a substance to catch fire and burn in the presence of an ignition source.

Front

What is conductivity?

Back

Conductivity is the ability of a substance to conduct electricity or heat.

Front

What happens to the boiling point of water when salt is added?

Back

The boiling point of water increases when salt is added, a phenomenon known as boiling point elevation.