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Objectives:. 1. I can classify matter into substances and mixtures. 2. I can identify and distinguish between physical and chemical properties. 3. I can identify and distinguish between the two types of forces that affect the nature of molecules.

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objectives
Objectives:

1. I can classify matter into substances and mixtures.

2. I can identify and distinguish between physical and chemical properties.

3. I can identify and distinguish between the two types of forces that affect the nature of molecules.

4. I can understand and distinguish between physical and chemical changes.

5. I can identify techniques used to separate mixtures.

daily objective
Daily Objective

I can define matter.

I can identify and distinguish between the classes of matter.

what is matter1
What is Matter?
  • One or more atoms that take up space and has mass.
  • Emphasized that all matter’s properties and changes are due to the chemical make-up and interactions on the atomic level.
classification of matter
Classification of Matter

What are some terms associated with the classification of matter?

classification of matter2
Classification of Matter

Terms:element, compound, mixture, substance, homogenous mixture, and heterogenous mixture.

  • Define/illustrate each term above.

2. Use a graphic organizer to show how these terms are connected to matter and each other.

infinite campus update
Infinite Campus Update
  • Density Lab
  • Scientific Measurement Exam
elements
Elements
  • Smallest type of matter that maintains it properties.
  • Each element represents a different atom (natural or synthetic)
  • A symbol is used to represent each element.
slide15

Compound

  • Chemical Combination of substances in a fixed amount.
  • Each compound has a unique chemical formula.
  • Ex. Sodium chloride = NaCl
  • The chemical combination of substances produces new properties.
  • Sodium (Na) + Chlorine (Cl) = Salt (NaCl)
mixture
Mixture
  • Physically mixed together, so each matter’s properties are preserved.
  • Use matter’s individual properties to physically separate from one another.
  • Mixture’s composition can vary.
homongenous mixtures
Homongenous Mixtures

Also called solutions.

Solutions:

-Solute: what is dissolved

-Solvent: what dissolves

Solubility= the ability of the solute to dissolve in the solvent.

.

NaCl + H2O

exit slip
Exit Slip
  • Classify the following examples two ways:
  • Substance or Mixture?
  • Element, Compound, Heterogenous mixture or Homogenous mixture?
  • gasoline at the pump

(C8H18 + other hydrocarbons)

2. glucose (C12H22O11)

3. aluminum foil

4. sand

exit slip1
Exit Slip
  • Classify the following examples two ways:
  • Substance or Mixture?
  • Element, Compound, Heterogenous mixture or Homogenous mixture?
  • gasoline at the pump
  • salt you garnish fries with
  • aluminum foil
  • sand
infinite campus update1
Infinite Campus Update

Density Lab

Scientific Measurement Exam

classifying matter1
Classifying Matter
  • represents an atom
  • physical combination of substances
  • multiple phases
  • one phase
  • chemical combination of substances
  • same composition from sample to sample
  • individual properties are preserved when substances combine
  • varied composition from sample to sample
  • individual properties are lost and new properties are gained when substances combine
  • chemical formula
  • solution
  • atom’s symbol
  • substances dissolve in one another.
substances
Substances

Element

Compound

Substance

mixtures
Mixtures

Homogenous Mix

Heterogenous Mix

Mixtures

objectives1
Objectives:

1. I can classify matter into substances and mixtures.

2. I can identify and distinguish between physical and chemical properties.

3. I can identify and distinguish between the two types of forces that affect the nature of molecules.

4. I can understand and distinguish between physical and chemical changes.

5. I can identify techniques used to separate mixtures.

infinite campus update2
Infinite Campus Update
  • Density Lab
  • Scientific Measurement Exam
conclusion classification of matter lab
Conclusion:Classification of Matter Lab
  • What was most beneficial about this lab?
  • What was most challenging about this lab?
  • How has this lab helped you make important connections and distinctions between the classes of matter?
classifying matter lab
Classifying Matter Lab
  • Students with peers observe various samples of matter and classify them as an element, compound, homo mixture, or hetero mixture.
classifying matter2
Classifying Matter

1. Classify each as either an element, compound, homo mixture, or hetero mixture

a. soil

b. orange juice with no pulp

c. copper wire

d. car gasoline (C8H18)

2. What is the difference between a compound and a mixture?

bell ringer matter
Bell Ringer: Matter
  • What is the difference between:
  • substances and mixtures
  • compounds and mixtures

2. Classify each of the following examples:

  • sugar
  • sugar water
  • gold ring
  • Iron rust (FeO)
  • Italian dressing
classifying matter lab1
Classifying Matter Lab
  • Students re-assess their classification of matter lab examples.
classifying matter lab2
Classifying Matter Lab
  • O2 = compound

Why?

  • Because the subscript number represents atoms that are chemically bonded.
  • In this example, two atoms of oxygen are chemically bonded together.
chemical vs physical change
Chemical vs. Physical Change

Chemical Change:

  • Matter’s chemical make-up changes.
  • New matter is produced with new properties
  • Ex. Iron Rust (FeO)

Physical Change:

  • Matter’s chemical make-up stays the same.
  • Matter is the same, so most properties are the same.
  • Ex. Lemonade
intra molecular forces
Intramolecular Forces

Forces within a compound that holds the atoms

together. Also called chemical bonds.

H2O compound

types of chemical changes
Types of Chemical Changes
  • Combustion
  • Decaying
  • Digesting
  • Baking
  • Neutralization (acidic and basic chemicals)
  • Growing
  • Spoiled
physical changes
Physical Changes
  • Physical process
  • Substance(s) chemical make-up is preserved so no new substance is produced.
  • Properties are preserved

Ex. Making Lemonade

inter molecular forces
Intermolecular Forces

Forces between compounds in a sample of matter. (group forces)

types of physical changes
Types of Physical Changes
  • Most states of matter
  • Breaks
  • Dissolves
  • Crushes
  • Cuts
  • Absorbs
infinite campus 9 10 12
Infinite Campus 9/10/12
  • Classifying Matter Lab
  • Classification of Matter Quiz
mixture separation lab
Mixture Separation Lab
  • Students work in groups to determine what physical processes they can use to separate out each substance in a given mixture.
  • They will design and carry out their experiment to successfully separate out each substance in the mixture.
  • Reiterate the concept that substances in a mixture maintain their physical properties because their chemical make-up is preserved.
mixture separation lab 9 11
Mixture Separation Lab (9/11)

Purpose: To design and carry-out an experiment that will separate substances from a mixture.

homongenous mixtures1
Homongenous Mixtures
  • Also called solutions.
  • Solutions:

-Solute: what is dissolved

-Solvent: what dissolves

.

solubility of mixtures
Solubility of Mixtures

Solubility: How well substances dissolve

in one another.

Sciencephoto.com

Chemistryland.com

physical separation of mixtures extraction
Physical Separation of Mixtures:Extraction

1. Extraction- separating substances in a heterogenous mixture from one another based on their unique physical properties..

Physically separate oil

from water because

they are not soluble in one another.

How could we separate

iron fillings and sand?

physical separation of mixtures filtration
Physical Separation of Mixtures:Filtration

Commonly used to separate a solid from a liquid in a heterogenous mixture due to differences in size or solubility.

physical separation of mixtures distillation
Physical Separation of MixturesDistillation

Separation of liquids in a mixture by their differences in boiling points. Ex. Ethanol (78 0C) and Water (1000C)

chromotography
Chromotography
  • Separates homogenous mixtures based on solubility.
  • Chromotography has two phases:
  • -Stationary Phase: solid
  • Mobile Phase: liquid or gas
  • Substances in mixture will separate
  • based on their degree of solubility
  • toward the mobile phase.
pre ap infinite campus 9 10
pre-AP Infinite Campus (9/10)
  • Classifying Matter Lab
  • Mixture Separation Lab
bell ringer
Bell Ringer

Identify as a chemical or physical change

  • moldy cheese
  • dew in the morning
  • leaves turning colors in the fall
  • sublimation of dry ice.
  • recycling aluminum
  • combustion of fossil fuels
matter and energy
Matter and Energy

I can….

  • Establish a relationship between changes in matter, the forces involved, and the flow of energy.
bell ringer1
Bell Ringer

1. Using your states of matter table what is the relationship between the following:

  • intermolecular forces and kinetic energy?

2. Complete the table below using the states of matter table and phases of matter diagram

thermochemistry
Thermochemistry
  • Study of energy changes when matter undergoes a physical or chemical change.
  • In this unit, we will just apply energy changes when matter undergoes physical changes.
particles in matter
Particles in Matter
  • The particles that make-up matter are in constant motion.
  • The particles speed of motion depends upon?

energy and intermolecular forces

heat energy
HeatEnergy

Heat Energy (q) =

Energy that is transferred between matter of different temperatures.

Unit for Energy: Joules (J) or calories (cal)

1 J = 0.2390 cal

Energy does not have mass or volume, therefore it is NOT classified as matter.

How does heat energy flow between objects?

Always flow from hot to cold objects

heat energy flow
HeatEnergy Flow

Heat energy flowing between objects:

System:

The matter you are studying/measuring.

Surrounding :

The matter (environment) around the system.

Endothermic Process:

When heat is absorbed by the system.

Exothermic Process:

When heat is released by the system.

heat energy1
Heat Energy

What does heat enegy alter?

Heat Energy

heat energy2
Heat Energy
  • Heat energy alters the:

-speed of particles

-strength of the intermolecular forces

Heat Energy

temperature scales
Temperature Scales
  • Temperature only measures the heat energy that alters the speed of particles.
  • Scientist prefer the Kelvin (K) and Celsius (oC) scales

Visionlearning.com

molecular kinetic theory
Molecular Kinetic Theory:

Establishes a relationship between physical changes, intermolecular forces, and energy flow.

OC

Heat Energy

physical change energy diagrams
Physical Change: Energy Diagrams

Enthalpy (H):The heat content of a system at constant pressure.

H: change in heat content before and after a change

H = heat energy (q)

catalog.flatworldknowledge.com

physical change energy diagrams1
Physical Change: Energy Diagrams
  • Exothermic:
  • heat content before change< heat content after change
  • heat energy (change in heat content) is negative, q-
  • Endothermic:
  • heat content before change> heat content after change
  • heat energy (change in heat content) is positive, q+

catalog.flatworldknowledge.com

conservation of matter and energy
Conservation of Matter and Energy

Matter:

Matter undergoes

changes, but the atoms are conserved as a whole or as parts.

Energy:

Energy is also conserved during changes that matter undergoes.

If energy increases for a system, then its surroundings must decrease in energy by the same amount.

pre ap
Pre-AP
  • The following slides pertain only to pre-AP chemistry classes.
heat capacity
Heat Capacity

Heat Capacity:

The amount of heat needed to raise the temperature of a substance 1.0 oC.

What does heat capacity depend upon?

specific heat capacity
Specific Heat Capacity

Specific Heat Capcity:

The amount of heat it takes to raise 1g of the substance 1 0C.

heat calculation
Heat Calculation
  • The temperature of a 95.4 g piece of copper increases from 25.0oC to 48.0oC when the copper absorbs 849 Joules of heat. What is the specific heat of copper?
heat calculations
Heat Calculations
  • How much heat is required to raise the temperature of 250.0g of mercury to 52oC?
bell ringer2
Bell Ringer
  • What is the difference between heat energy (q) and specific heat energy (C)?
  • When 150.0 J of energy is absorbed by a 42.1 g sample of silver the temperature increases by 15.0oC. What is the specific heat of silver?

3. If an 8.8 gram sample of aluminum increases in temperature from 25oC to 55oC how much heat was absorbed by the aluminum sample?

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