CHEMISTRY STATES OF MATTER

THE PHYSICAL FORMS OF MATTER THAT INCLUDE SOLID, LIQUID, AND GAS. STATES OF MATTER THE PHYSICAL FORMS OF MATTER THAT INCLUDE SOLID, LIQUID, AND GAS.

SOLID THE STATE OF MATTER WHERE THE VOLUME AND SHAPE OF A SUBSTANCE IS FIXED.

LIQUID THE STATE OF MATTER WHERE THE VOLUME HAS DEFINITE VOLUME BUT DOES NOT HAVE A DEFINITE SHAPE. TAKES THE SHAPE OF ITS CONTAINER.

GAS A FORM OF MATTER THAT DOES NOT HAVE A DEFINITE VOLUME OR SHAPE

CHANGE OF STATE THE CHANGE OF A SUBSTANCE FROM ONE PHYSICAL FORM TO ANOTHER

TEMPERATURE A MEASURE OF THE AVERAGE KINETIC ENERGY IN AN OBJECT HOW HOT OR COLD SOMETHING IS

THERMAL EXPANSION AN INCREASE IN THE SIZE OF A SUBSTANCE IN RESPONSE TO A CHANGE IN TEMPERATURE

ABSOLUTE ZERO THE TEMPERATURE WHERE ALL MOLECULAR MOTION STOPS

MELTING THE CHANGE OF STATE IN WHICH A SOLID BECOMES LIQUID BY ADDING ENERGY

FREEZING THE CHANGE OF STATE FROM A LIQUID TO A SOLID BY REMOVING ENERGY

EVAPORATION THE CHANGE OF A SUBSTANCE FROM A LIQUID TO A GAS BY ADDING ENERGY HAPPENS ON THE SURFACE OF A LIQUID

BOILING THE CHANGE OF STATE FROM A LIQUID TO A GAS BY ADDING ENERGY HAPPENS BELOW THE SURFACE OF A LIQUID

CONDENSATION THE CHANGE OF STATE FROM A GAS TO A LIQUID BY REMOVING ENERGY

SUBLIMATION THE CHANGE OF STATE WHERE A SOLID TURNS DIRECTLY INTO A GAS BY ADDING ENERGY EXAMPLE- DRY ICE

CHAPTER 7 VOCAB

A pure substance that cannot be separated into simpler substances by physical or chemical means ELEMENT

PURE SUBSTANCE A substance where there is only one type of particle. Can be an element or compound PURE SUBSTANCE

a pure substance made of two or more elements that are chemically combined COMPOUND

A combination of substances that are NOT chemically combined. MIXTURE

An element that is shiny, malleable, ductile, good conductors of heat and electricity METAL

An element that is dull, brittle, and does not conduct heat and electricity NONMETAL

An element that has properties of both metals and nonmetals METALLOID

A mixture that appears to be a single substance A mixture that appears to be a single substance. Is composed of particles that are evenly distributed among each other SOLUTION

THE SUBSTANCE BEING DISSOLVED SOLUTE

THE LIQUID A SOLUTE IS DISSOLVED IN SOLVENT

THIS ENDS CHAPTER 6 AND 7 VOCAB STOP HERE! THIS ENDS CHAPTER 6 AND 7 VOCAB

Chapter 8 Vocab PERIODIC TABLE

extremely small particles that make up all matter ATOMS extremely small particles that make up all matter

ATOMIC MASS the mass of an atom expressed as ‘atomic mass units’ or amu

PERIODIC TABLE a chart that arranges all of the known elements in a particular order

PERIODS the seven horizontal rows of the periodic table with elements grouped by the number of electrons in the outer shells

GROUPS the eighteen vertical columns of the Periodic Table with elements grouped by similar properties