Properties of Matter! (copy)

What is matter?

Anything that occupies space and has mass.

What describes how an object looks, feels, or acts?

A property.

What is a physical property?

A property that is usually observed with our senses.

Give an example of a physical property.

Color.

What does color refer to in the context of physical properties?

The quality of an object or substance with respect to the reflection of light.

What is the definition of volume?

The amount of space a substance or object occupies.

Define density in terms of physical properties.

The ratio of mass and volume in a substance.

What does boiling point refer to?

The temperature at which something boils.

What are intensive properties?

Properties that do not depend on the amount of the substance present.

Give an example of an extensive property.

Mass.

What is a chemical property?

Any characteristic that can be determined only by changing a substance's identity.

Define reactivity in terms of chemical properties.

The likelihood of a substance to undergo a chemical reaction.

What is toxicity?

How poisonous or damaging a chemical substance may be to organisms.

What is flammability?

Whether a substance will burn when exposed to a flame.

What is the difference between a physical change and a chemical change?

Physical change does not alter the substance's molecular composition, whereas a chemical change results in a new substance.

What indicates a chemical change has occurred?

Change in color, odor, formation of gas, formation of a solid, or change in energy.

What is an exothermic reaction?

A reaction that releases heat and energy.

What does an endothermic reaction do?

Absorbs heat and/or energy to complete its reaction.