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


States of matter1

STATES OF MATTER


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


States of matter2

States of Matter


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


Different forms of matter1

Different forms of matter


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


Mixtures

Mixtures


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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