thursday september 4 2014
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Thursday, September 4, 2014:. Please take out your HW from Last night and be ready to correct it – if you have not finished it, do so now. Be ready to take notes Self assess your understanding of the SOM by checking your hw Q and A from Activity Matter Notes What is Matter?

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thursday september 4 2014
Thursday, September 4, 2014:
  • Please take out your HW from Last night and be ready to correct it – if you have not finished it, do so now.
  • Be ready to take notes
  • Self assess your understanding of the SOM by checking your hw
  • Q and A from Activity
  • Matter Notes
    • What is Matter?
    • Identifying different types of matter
    • Separation Techniques
  • Matter Homework
matter

Matter

What is Matter?

Identifying Pure Substances, Mixtures, and Compounds

Separation Techniques

SOM

learning targets for today
Learning Targets for Today:
  • I can define Matter (DOK 1)
  • I can define the Law of Conservation of Matter (DOK 1)
  • I can distinguish between and define examples of: solution, suspension, colloid, and pure substances (DOK 1 and 2)
  • I can identify and explain the states of matter in terms of volume and shape (DOK 1 and 3)
  • I can identify and explain the states of matter in terms of movement of particles (DOK 1 and 3) I can assess when to use the different separation techniques (distillation, crystallization, chromatography, and filtration) (DOK 3)
  • I can compare various forms of matter to place them their distinct categories based on composition and properties (DOK 2 and 3)
what is matter
What is Matter?
  • Anything that has mass and takes up space
  • Mass – the amount of matter that an object has
  • Volume-the amount of space an objects takes up
the law of conservation of matter
The law of Conservation of Matter
  • Matter cannot be created

nor destroyed

law of conservation of matter
Law of Conservation of Matter
  • What does it mean?
    • During a chemical reaction what goes in, must come out, it is just rearranged.
    • If 5 grams of sodium reacts with 10 grams of sulfur, how much sodium sulfide is produced?
      • 5 grams of Na + 10 grams of s = 15 grams of na2S
    • What is the amount of lithium chloride produced, if 9.9 grams of lithium reacts with 3.4 grams of chlorine?
      • 9.9 grams of Li + 3.4 grams Cl = 13.3 grams of LiCl (13 grams)
states of matter
States of Matter
  • Matter occurs in four different states:
    • Solid
    • Liquid
    • Gas
    • Plasma
kinetic energy
Kinetic energy
  • Kinetic Energy (KE) – energy with motion
  • Kinetic Theory of matter – all matter is made of tiny constantly moving particles
solids
solids
  • Has a definite shape and a definite volume
  • Very tightly packed particles
  • Particles move very slowly
  • Expands only slightly when heated
  • Have Low kinetic energy
liquids
liquids
  • Has definite volume, but no definite shape
  • Takes the shape of its container
  • Particles are slightly free, and move fairly fast
  • Almost incompressible particles
  • Tendency to expand when heated
  • Moderate kinetic energy
gases
Gases
  • No definite shape or volume
  • Particles are spaced very far apart
  • Particles are free and very fast moving
  • Easily compressed (tanks of helium, nitrogen, etc)
  • Takes the shape and volume of it’s container
  • High kinetic energy
plasma
Plasma
  • Super heated, ionized gas

(negatively charged particles)

  • No definite shape or volume
  • Extremely high temperatures
  • Particles are spaced very far apart
  • Particles are very fast moving
  • Easily compressed
  • Extremely high kinetic energy
different forms of matter
Different forms of matter
  • Pure substances
    • Elements and Compounds
  • Mixtures
    • Heterogeneous and Homogenous
pure substances
Pure Substances
  • Matter with a uniform composition
  • Matter that is always made up of the same ratio in a given order and cannot be separated by physical means
substances elements and compounds
Substances: Elements and Compounds

Elements

Compounds

  • the simplest form of matter
  • cannot be separated
  • building blocks for all other substances
  • two or more elements chemically combined
  • has a definite ratio
  • can be separated by only a chemical process
  • properties of a compound are different from the properties of the elements that make it
compounds do not retain the individual element s properties
Compounds – do not retain the individual element’s properties

Properties of a compound are different from the properties of the elements that make it.

Example:

Sodium (Na) – solid at room temperature that reacts violently with water

Chlorine (Cl) – poisonous yellow-green gas at room temperature

Sodium Chloride (NaCl) – white crystalline water soluble solid used as a food additive

mixtures1
Mixtures
  • Physical blend of two or more substances
  • No definite ratio
  • Can be separated by physical means
two different types of mixtures
Two different types of mixtures

heterogeneous

homogenous

  • Does not have a uniform composition
  • Different components of the mixture are usually easy to identify
  • Has a uniform composition
  • Different components of the mixture are not easily identified
  • solution
solutions
Solutions
  • Solutions are homogenous mixtures, because it is difficult to identify the individual components that make them up
  • Solutions are composed of:
    • Solutes – what is dissolved in the solution
    • Solvents – what dissolves the solute

Think of sweet tea – Sugar is the solute, because it is dissolved in the solvent, which is the tea.

separation techniques
Separation Techniques
  • Filtration
  • Distillation
  • Chromatography
  • Evaporation
  • Crystallization
filtration
Filtration
  • Used to remove solids from liquids
    • How coffee filters work
    • Filtration
distillation
Distillation
  • Using the difference in boiling points to separate two different liquids from each other.
  • Distillation
  • What do you think is a common use for distillation?
chromatography
Chromatography

Chromatography

Separation technique to separate mixtures

evaporation
Evaporation
  • A means of separating a solid out of a solution
    • Salt out of salt water

Evaporation

crystallization
Crystallization
  • A means of separating a solvent out of a super saturated solution
  • Crystallization
  • What are the sugar crystals, that he mentions at the end of the video?
homework
Homework
  • You are to complete pages 4 and 5 both front and back for HW
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