Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
Substance
|
an element or a compound
|
|
|
Element
|
if all the atoms in a substance are alike
|
|
|
Compound
|
a substance in which the atoms of two or more elements are combined in a fixed proportion
|
|
|
Heterogeneous mixture
|
a mixture in which different materials can be distinguished easily
|
|
|
Homogeneous mixture
|
contains two or more substances blended throroughly throughout
|
|
|
Solution
|
a homegenous mixture of particles so small that they cannot be seen with a microscope and will never settle to the bottom of their container
|
|
|
Colloid
|
a type of mixture that never settles
|
|
|
Tyndall effect
|
scattering of light by colloidal particles
|
|
|
Suspension
|
a heterogeneous mixture containing a liquid in which visible particles never settle
|
|
|
Physical property
|
any characteristic of a material that you can observe or attempt to observe without changing the identity of the substances that make up the material
|
|
|
Physical change
|
a change in size, state, or shape of matter
|
|
|
Distillation
|
a process of seperating substances in a mixture by evaporating a liquid and recondensing its vapor
|
|
|
Chemical Property
|
a characteristic of a substance that indicates whether it can undergo a certain chemical change
|
|
|
Chemical change
|
a change of one substance to another
|
|
|
Law of conservation of mass
|
the mass of all substances that are present before a chemical change equals the mass of all the substances that remain after the change
|
