Physical and Chemical Changes Test Review

Matter

Anything that has mass and takes up space.

Property

A characteristic used to describe something.

Physical Properties of Matter

Characteristics that you can change without changing the Identity of the matter.

Luster, Texture, Color, Malleability, & Hardness are all examples of what property of Matter?

Physical Properties of Matter

Malleability

The quality of being able to be shaped into something else without breaking.

size- dependent properties

measurements of these properties DO depend on how much matter is in the sample.

Mass, Volume, and Weight, are what properties?

size- dependent physical properties.

Size- independent physical properties

measurements of these properties DO NOT depend on how much matter is in the sample. These properties are the same for small and large samples.

melting and freezing point, boiling point, state of matter, solubility, conductivity, magnetism, density, & viscosity are what kind of physical properties?

size- independent physical properties

solubility

the ability of one substance to dissolve into another.

density

the amount of mass per unit of volume of a substance

viscosity

A liquid’s resistance to flow

Chemical properties of Matter

Characteristics of matter that can only be observed as it changes to a different type of matter.

burning something, rust, tarnish, flammability, & acidity, are all irreversible processes, which are what properties of matter?

chemical properties of matter.

physical change

A physical change is when a substance changes in form or appearance, but a new substance is not formed. This type can be considered “reversible”. 

tearing fabric, popping a balloon, & cutting paper, are all what kind of change?

physical change.

chemical change

A chemical change is when a change in a substance produces one or more new substances that have different properties than the original. This type of change is considered “irreversible.”

Color change- (a sliced apple turning brown), gas production- (bubbles, foaming, smoke), change in odor, & emission of energy- (light, heat, or loud sound), are all what kind of change?

chemical change.