Do Now (4 min) The atmosphere is made of nitrogen, oxygen and argon gas. If the partial pressures of nitrogen, oxygen and argon are 592.8 atm, 159.6 atm,

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Presentation transcript:

Do Now (4 min) The atmosphere is made of nitrogen, oxygen and argon gas. If the partial pressures of nitrogen, oxygen and argon are atm, atm, and 7.6 atm, what is the total pressure of the atmosphere?

Do Now Discussion The atmosphere is made of nitrogen, oxygen and argon gas. If the partial pressures of nitrogen, oxygen and argon are atm, atm, and 7.6 atm, what is the total pressure of the atmosphere? P T = P N2 + P O2 +P Ar PTPT = P T = 760 atm

Cornell Notes Matching Game

Matter Anything that has mass and takes up space CHEMISTRY is the study of MATTER

What are the three states of matter? Differ in particle spacing and movement! SOLID LIQUIDGAS

Solid Holds its own shape Definite volume Tightly packed matter Very little movement of particles Strong attractions between particles

Liquid Takes shape of container Definite volume Matter less closely packed than solid Particles flow A little attraction between particles

Gas takes shape of container Fills volume of container Matter is spaced out and moves quickly Hardly any attraction between particles

So what’s the difference between the states of matter? SPACING and MOVEMENT of particles! We can change states by moving particles closer together or further apart Break or make attractions between particles

Phase Changes when matter changes from one state to another How does matter change state? Absorbing kinetic energy (breaks bonds between particles) Releasing energy (bonds are formed between particles) Which state of matter has more kinetic energy? More KE Less KE

Melting Solid to liquid Absorbs energy

Boiling Liquid to gas Absorbs energy

Sublimation Solid to gas Absorbs energy

Freezing Liquid to solid Releases energy

Condensation Gas to liquid Releases energy

Deposition Gas to solid Releases energy

Matching Game Groups of 3 people Each person gets ONE state of matter card TWO phase change cards Place the rest of the cards FACE DOWN on the table Take turns picking up a card and reading the property If the property card you picked matches your state of matter or phase change, keep the card If it doesn’t match, return the card face down Objective: find all the property cards that match your cards The first person in each group who gets every property card for their state of matter and their phase changes wins 5 extra credit points! 10 cards for each state of matter 3 cards for each phase change