Classifying Matter Flashcards
Matter devides into
Pure substances, and mixtures
What is the formula for finding the amount of energy heat wise
Q= m x triangle t x s
Pure substances devide into
Elements and compounds.
Mixtures
Homogeneous and heterogeneous.
Matter
Anything a that has mass and volume
Heterogeneous Mixture
easily separated. ex me, salad dressing, coffee, cereal,
Pure substances
can not be separated by common means, or procedures. ex iron, water, gold,
Elements
smallest building block of matter, ex, iron, hydrogen
Compounds
two or more elements that are bonded togetherEx water
Homogeneous
uniform through out
Heterogeneous:
Not uniform through out
Classify gatoraid
Homogeneous mixture
Classify pond water
Heterogeneous mixture
Alcohol
Compound
Air
Homogenous mixture
Properties are
Physical or chemical
Physical properties
properties that can be determined without changing the substances identity. Ex: solid, (state), color, mass, volume, density,
Physical changes
changes that do not change the chemicals identity
Ex: ripping paper, grinding coffee dough
Melting
Solid to liquid
Freezing
Liquid to solid
Vaporization
Liquid to gas
Gas to liquid
Condensation
Deposition
Gas to solid
Sublimating
Solid to gas
Chemical properties
properties that can be determined by changing the identity
Ex: flammability, unreactivity,
Chemical changes
changes you can’t undo it.
Ex baking a cake
Energy
can’t be created or destroyed. (Law of conservation of mass and energy)
Work
accomplished through the use of energy.
Types of energy
kinetic: energy of motion
- potential energy- the energy at rest, or the energy inside of something.
- heat
- light(electrical)
- sounds
Measuring energy
Volts (electricity)
Watts (power)
Newtons (force)
Faherenheight (temp) Celsius, kelvin
Kelvin has
An absolute zero
How to get kelvin
Celsius + 273
