Properties of Matter

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Properties of Matter

• Shane Feusier, Fortuna Union High School

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What is Matter?

• Why does it ???
• Matter (he he)
• All Matter has TWO properties
• 1. Has a Volume (takes up space)
• 2. Has Mass
• Mass substance (until the next slide)

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Mass

• Measurement of the resistance to a change in
  motion
• Resitance to change in motion is also known as
  INERTIA
• Imagine a poodle sliding on ice

It is EASY to stop because it has little MASS
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Mass

• Imagine an elephant sliding on ice

It is HARD to stop because it has A LOT OF MASS
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Do Not Confuse MASS with WEIGHT

• Mass measures INERTIA, or the resistance to a
  change in motion
• Weight equals the Force of Gravity on a Mass
• MASS doesnt change, WEIGHT changes when on
  different planets / moons.

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Concentration of Matter

• Old Question Which weighs more a pound of
  feathers or a pound of lead
• Neither Each has a weight of 1 pound.
• However, which one is more concentrated?
• Lead it takes up less space

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Concentration of MatterDENSITY

• Density measures the concentration of a material.
• It is a ratio---bigger the number, the more
  concentrated the material
• Eg Water has a value of 1.0 g/mL
• Lead has a value of 11.2 g/mL
• Mercury has a value of 13.6 g/mL

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Density Concentration

• Density Mass / Volume
• Units grams / milliliter
• kilograms / meter3
• Remember
• Density Substance / Space

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Density Concentration
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Density Concentration
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Density Concentration
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Density Concentration
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Density Concentration
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Density Concentration
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Specific Gravity

• A unit-less measure
• Compares the density of all materials to the
  density of water.
• Specific Gravity Dsubstance / Dwater
• Ex Dwater 1 g / mL 1000 kg/m3
• Dgold 19.3 g / mL 1930 kg/m3
• Specific Gravity of Gold is 19.3
• (19.3 / 1 or 1930 / 1000)

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Summary

• All forms of matter have 2 properties
• 1. Have Volume (take up space)
• 2. Have Mass
• Mass measures the Inertia of a body, which is the
  resistance to a change in motion.
• Weight measures gravitys effect on a mass
• Density Concentration Mass / Volume
• Specific Gravity unit-less density ratio
  compared with water S.G.water 1.00

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Chemical Properties

• Observed through a chemical reaction
• New Compounds are formed
• The Formula CHANGES
• Chemical Equations are Used

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A Chemical Property of Hydrogen

• Hydrogen burns in Oxygen to form Water and Heat

2 H2 1 O2 ? 2 H2O Heat
Hydrogen Oxygen Water

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A Chemical Property of Sulfur

• Sulfur reacts with Zinc to form a Zinc/Sulfur
  compound and energy

Zn S ? ZnS Heat
Zinc Sulfur Zinc
Sulfide
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Summary Chemical and Physical Properties

• Physical Properties are identified without
  changing the formula of the material
• Ex density, color, MP, BP, crystal shape,
  solubility
• Chemical Properties are identified through
  chemical reactions and changing the formula of
  the material

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