Chapter 15- Homogeneous and Heterogeneous

Question 1

Physical Properties

Answer 1

characteristics that you can observe without changing the identity of an object

Question 2

Chemical Properties

Answer 2

characteristic that indicates whether the object can undergo a chemical change

Question 3

Physical Changes

Answer 3

A change in size, shape, state of matter, etc.

Question 4

Chemical Changes

Answer 4

A change of one substance to another

Question 5

Substance

Answer 5

a type of matter with fixed compostition

Question 6

Element

Answer 6

All atoms have the same identity

Question 7

Homogeneous

Answer 7

two or more substances blended evenly

Question 8

Heterogeneous

Answer 8

different materials can be easily distinguished

Question 9

Solutions

Answer 9

homogeneous with small particles that can’t be seen with the naked eye and won’t settle

Question 10

Colloids

Answer 10

particles that are larger but still won’t settle

Question 11

Tyndall Effect

Answer 11

scattering of light by colloidal particles

Question 12

Compounds

Answer 12

two or more elements combined

Question 13

Mixtures

Answer 13

two or more substances separated by physical means