How Do We Classify Matter?

How Do We Classify Matter?

HOW DO WE CLASSIFY MATTER? Why do we often say WATER is PURE? What does pure H2O look like at the super microscopic level? What does pure H2O look like at

the super microscopic level? What does pure H2O look like at the super microscopic level? All we would see are H2O molecules. What about PURE GOLD?

not that 14 K cheap stuff! What about PURE GOLD? What about PURE ALL GOLD? we would see are only Au atoms!

What about PURE It would be made of GOLD? only Au atoms! When something is made of only ONE INGREDIENT, it is called PURE.

When something is made of only ONE INGREDIENT, it is called PURE. One element When something is made of only ONE INGREDIENT, it is called PURE. One element When something is made of only

ONE INGREDIENT, it is called PURE. ONE element When something is made of only ONE INGREDIENT, it is called PURE. ONE ELEMENT Au C

He When something is made of only ONE INGREDIENT, it is called PURE. ONE element, ONE MOLECULE O2 When something is made of only ONE INGREDIENT, it is called PURE.

ONE element, ONE MOLECULE Cl2 O2 When something is made of only ONE INGREDIENT, it is called PURE. ONE element, ONE molecule, or ONE COMPOUND MOLECULE.

H 2O NaCl When something is made of only ONE INGREDIENT, it is called PURE. ONE element, ONE molecule, or ONE COMPOUND MOLECULE

C2H2 H2O NaCl When something is made ONE of only ONE INGREDIENT, is called PURE.

ELEMENT oritONE MOLECULE One element,electrons! one molecule, bonded by valence or one compound molecule. IS ORANGE

JUICE REALLY A PURE SUBSTANCE ? IS ORANGE JUICE REALLY A PURE SUBSTANCE?

several types of sugars, proteins, vitamin mole m molecules, iron molecules & water molecule NO Which one do you think is pure: white sugar or brown sugar? White sugar IS PURE because it is only made of C12H22O11 but brown sugar is a

mixture of white sugar and molasses molasses molecule C6H12NNaO3S C12H22O11 write this diagram BIG in your notes: HOW WE CLASSIFY MATTER

draw this PURE matter is made of only ONE ingredient (one element, simple molecule, or one compound) draw this 1

1 Like PURE Au or PURE H2O Now I know some of you may still be confused

How can water be pure when it is made of two elements: Hydrogen & Oxygen? Doesnt that count as two ingredients? ONCE JOINED BY VALENCE ELECTRONS, A MOLECULE (COMPOUND OR

SIMPLE) CANNOT BE SEPARATED BY PHYSICAL MEANS They are their own PURE substances. WHEN WATER EVAPORATES, IT DOESNT SEPARATE INTO HYDROGEN & OXYGEN GASES, IT STAYS WATER, ONLY AS WATER VAPOR.

ONCE JOINED BY VALENCE ELECTRONS, A MOLECULE (COMPOUND OR SIMPLE) CANNOT BE SEPARATED BY PHYSICAL MEANS only through chemical reactions, and

that changes the substance into a completely different molecular products. PURE matter is made of only ONE ingredient (one element, simple molecule, or one compoundBONDED by VALENCE ELECTRONS) draw this 1

1 NNOT be separated PHYSICALLY So, what are MIXTURES? draw this 1

1 NNOT be separated PHYSICALLY MIXTURES are 2+ elements &/or compounds that are NOT sharing valence electrons. draw this

1 1 NNOT be separated PHYSICALLY AIR IS A GOOD EXAMPLE. IT HAS OXYGEN GAS

MOLECULES, NITROGEN GAS MOLECULES AND ARGON ATOMS. O2 N2

NONE OF THESE ARE SHARING VALENCE ELECTRONS WITH EACH OTHER. MIXTURES CAN BE SEPARATED BY PHYSICAL MEANS.

We dont need to rip apart any molecules and their valence electrons to separate mixtures, they are already separated at the molecular level When I say, MIXTURES CAN BE SEPARATED BY PHYSICAL MEANS. What am I saying? What does physical

means mean? PHYSICAL WAYS TO SEPARATE MIXTURES: NOT CHEMICALLY SEPARATED BY DOING CHEMICAL REACTIONS BREAKING ELECTRON BONDS show popcorn, sand & filings demo

PHYSICAL WAYS TO SEPARATE MIXTURES: NOT CHEMICALLY SEPARATED BY DOING CHEMICAL REACTIONS BREAKING ELECTRON BONDS

SIFTING (2 different-sized solids) MAGNETICS show popcorn, sand & filings demo PHYSICAL WAYS TO SEPARATE MIXTURES:

NOT CHEMICALLY SEPARATED BY DOING CHEMICAL REACTIONS BREAKING ELECTRON BONDS SIFTING (2 different-sized solids) MAGNETICS FILTERING (solid from a liquid) https://www.youtube.com/watch?v=maPLXazEi6s

PHYSICAL WAYS TO SEPARATE MIXTURES: NOT CHEMICALLY SEPARATED BY DOING

CHEMICAL REACTIONS BREAKING ELECTRON BONDS SIFTING (2 different-sized solids) MAGNETICS FILTERING (solid from a liquid) EVAPORATION (solute from a solvent) https://www.youtube.com/watch?v=maPLXazEi6s DISTILLATION IS HOW WE SIMPLY

SEPARATE SOLUTES FROM SOLVENTS Like salt from water!!! PHYSICAL WAYS TO SEPARATE MIXTURES:

NOT CHEMICALLY SEPARATED BY DOING CHEMICAL REACTIONS BREAKING ELECTRON How does this work? BONDS SIFTING (2 differ MAGNETICS

FILTERING (solit EVAPORATION (solute from a solvent) DISTILLATION show popcorn, sand & filings demo PHYSICAL WAYS TO SEPARATE MIXTURES:

NOT CHEMICALLY SEPARATED BY DOING CHEMICAL REACTIONS BREAKING ELECTRON BONDS SIFTING (2 different-sized solids) MAGNETICS FILTERING (solid from a liquid)

EVAPORATION (solute from a solvent) DISTILLATION (evaporation & recondensing) 14K gold isnt PURE gold(Au) Its a mixture of Gold and Silver. The melting point of Silver (Ag) is 1763oF but the melting point of Gold is 1948oF. If I heat up 14K gold REALLY HOT, which will separate

first? https:// www.youtube.com/watch?v= YvBp8zB0OFQ PHYSICAL WAYS TO SEPARATE MIXTURES:

NOT CHEMICALLY SEPARATED BY DOING CHEMICAL REACTIONS BREAKING ELECTRON BONDS SIFTING (2 different-sized solids) MAGNETICS

DISTILLATION (evaporation & recondensing) EVAPORATION (solute from a solvent) MELTING (2 solids with different melting points) Lets revisit our BROWN SUGAR mixture of sucrose and molasses molecules. All we have to do is heat up this mixture until it totally melts both molecules into liquid form

molasses molecule C12H22O11 C6H12NNaO3S As the mixture settles, sucrose has a density of 1.6 g/ml, and it will separate below molasses with a density of 1.4

g/ml PHYSICAL WAYS TO SEPARATE MIXTURES:

NOT CHEMICALLY SEPARATED BY DOING CHEMICAL REACTIONS BREAKING ELECTRON BONDS SIFTING (2 different-sized solids) MAGNETICS FILTRATION (solid from a liquid) EVAPORATION (solute from a solvent) DISTILLATION (evaporation & recondensing)

MELTING (2 solids with different melting points) SETTLING (2 liquids with different densities) EVER SEE HOW WE SEPARATE ALL THE DIFFERENT MOLECULES IN OUR BLOOD MIXTURE?

https://www.youtube.com/watch?v=KEXWd3_fM9 PHYSICAL WAYS TO SEPARATE MIXTURES:

NOT CHEMICALLY SEPARATED BY DOING CHEMICAL REACTIONS BREAKING ELECTRON BONDS SIFTING (2 different-sized solids) MAGNETICS FILTRATION (solid from a liquid)

EVAPORATION (solute from a solvent) DISTILLATION (evaporation & recondensing) MELTING (2 solids with different melting points) SETTLING (2 liquids with different densities) EVAPORATION (solute from a solvent) speed up with centifuges! MIXTURES CAN BE

SEPARATED BY PHYSICAL MEANS. We dont need to rip apart any molecules and their valence electrons to separate mixtures, they are already separated at the molecular level

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