FINISHING UP PHYSICAL PROPERTIES AND QUIZ

REVIEWJUST WANT TO MAKE SURE WE COVERED IT ALL….

PHASE CHANGE

• IT IS THE TRANSITIONS BETWEEN SOLID, LIQUID, AND GAS

• ITEM CHANGES STATES OF MATTER

WATCH HOW THE PARTICLES MOVE IN THE DIFFERENT STATES OF MATTER

HTTP://WWW.YOUTUBE.COM/WATCH?V=S-KVOVZUKHO

PLEASE SKETCH THIS IN YOUR NOTE BOOKS

GAS

• GAS HAD NOT DEFINITE VOLUME SO IT’S VOLUME WILL CONFORM WITH THE CONTAINER IT IS IN.

• REMEMBER THE BUBBLE WE MADE??

• VOLUME OF GAS DEPENDS ON THE SIZE OF THE CONTAINER.

REMEMBER VOLUME IS THE AMOUNT OF SPACE MATTER TAKES UP.

• VOLUME WILL DECREASE IF IT IS PUT INTO A SMALLER CONTAINER.

THINK ABOUT….

EVAPORATION- PHASE CHANGE THAT OCCURS FROM THE SURFACE OF A LIQUID

MELTING POINT- TEMPERATURE AT WHICH A SOLD WILL MELT (ANY SOLID)

FREEZING POINT- TEMPERATURE AT WHICH A LIQUID BECOMES A SOLID (ANY LIQUID)

HTTP://WWW.YOUTUBE.COM/WATCH?V=R18PCZZ6FZM

BOILING POINT

• THE TEMPERATURE WHEN A LIQUID IS HEATED AND THE PRESSURE INSIDE THE LIQUID FORMS BUBBLES.

• BOILING WATER-

INSIDE THE WATER THE BUBBLES ARE VAPOR, THIS HAPPENS AT THE GREATEST RATE DURING THE BOILING POINT

COMING OFF THE TOP OF THE WATER IS EVAPORATION

VAPORIZATION

PHASE CHANGE FROM LIQUID TO VAPOR

HTTP://WWW.YOUTUBE.COM/WATCH?V=_ILDO-EPHNK

SUBLIMATION

• THE ROOT WORD IS SUBLIME

CHEMISTRY DEFINITION IS DIFFERENT THAT REAL WORLD DEFINITION

• WHEN A SOLID CHANGES DIRECTLY TO A GAS

PHYSICAL PROPERTIES VS. CHEMICAL PROPERTIES

PHYSICAL PROPERTIES• NO CHANGE IN THE ATOMS OR PARTICLES

• COLOR, SMELL, LUSTER

• CONDUCTIVITY (ELECTRICITY)

• FREEZING, BOILING, AND MELTING POINTS

• VISCOSITY

• DENSITY

• BREAKING, BENDING (MALLEABILITY)

CHEMICAL PROPERTIES• CHANGE IN THE PARTICLES

FORMING A NEW SUBSTANCE

• RUSTING (REACTIVITY)

• BURNING (FLAMMABILITY)

• pH

LAST SLIDE (BONUS)

• WHAT IS A PURE SUBSTANCE?AN ELEMENT BECAUSE IT IS MADE UP OF ALL ONE ATOM-

THERE IS NOT ANY OTHER ATOMS OR PARTICLES WITH IT.