Chemistry culminating (matter)
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What is matter?
Matter refers to anything that has MASS and VOLUME. The stuff of the universe.
What is a particle?
A SMALL or SINGULAR portion of MATTER
What is pure substance?
A substance that is made up of only ONE TYPE of particle
What is an element?
A pure substance that CANNOT be broken down into a simpler chemical substance by any PHYSICAL or CHEMICAL means
What is a compound?
A pure substance composed of TWO OR MORE DIFFERENT ELEMENTS that are chemically JOINED
What are the two pure substances?
Elements and Compounds
What is a mixture?
a substance that is made up of AT LEAST TWO DIFFERENT TYPES of particles.
Whats a mechanical mixture?
A mixture in which you can VISUALLY DISTINGUISH between different types of matter. This is also called a HETEROGENOUS MIXTURE
What is a solution?
A UNIFORM MIXTURE of two or more substances. This is also called a HOMOGENOUS MIXTURE.
What are the two mixtures?
A mechanical mixture and a solution
Particle theory:
All things are made up of tiny particles.
PISAM is?
P= PARTICLES I= IDENTICAL S= SPACE A=ATTRACT M= MOTION
Particle state of matter is?
Solid, Liquid, Gas
What happens when a substance is heated?
The particles absorb energy and VIBRATE and MOVE AROUND more
What happens when a substance is cooled?
Particles slow down and move CLOSER together to get rid of SPACE.
The particles are really _____ when in solid state
Close together, no SPACE
The particles are really _______ when in gas form
FAR apart. Lots of SPACE
The particles are really ______ when in liquid state
CLOSE together but there is still SPACE
What are the three main points of states of matter?
Particles vibrate more and bump into each other more. Particle spacing increases. Attraction between particles decreases.