Aim how can we identify the chemical physical properties of matter pski 3
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AIM: How can we identify the chemical & physical properties of matter? (PSKI#3) PowerPoint PPT Presentation


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AIM: How can we identify the chemical & physical properties of matter? (PSKI#3). 5/10/13 DO NOW: Pick up today’s quiz & finish it. HOMEWORK: Read p. 81-85 in the PS ILS REVIEW BOOK. Answer Questions #1-43 on p. 87-95 on your scantron ILS #2 Test Corrections & get it signed

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AIM: How can we identify the chemical & physical properties of matter? (PSKI#3)

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Aim how can we identify the chemical physical properties of matter pski 3

AIM: How can we identify the chemical & physical properties of matter? (PSKI#3)

5/10/13

DO NOW:

  • Pick up today’s quiz & finish it

HOMEWORK:

  • Read p. 81-85 in the PS ILS REVIEW BOOK.

  • Answer Questions #1-43 on p. 87-95 on your scantron

  • ILS #2 Test Corrections & get it signed

    DUE- Monday by 8 AM


Aim how can we identify the chemical physical properties of matter pski 3

Describe the shape & volume of solid, liquid, & gas.

  • Solid – definite shape, definite volume

  • Liquid – no definite shape, definite volume

  • Gas – no definite shape, no definite volume

    Compare how the particles are packed in a solid, liquid, & gas.

  • Solid – tight

  • Liquid – farther apart

  • Gas – loosely packed

    Describe the particle movement in solid, liquid, & gas.

  • Solid – shaking in place

  • Liquid – moving a little faster

  • Gas – fast moving


Aim how can we identify the chemical physical properties of matter pski 3

Describe the phase change melting.

  • Solid to liquid

  • Heat absorbed (gained)

  • Particle move farther apart

    Describe the phase change freezing.

  • Liquid to solid

  • Heat released (removed)

  • Particles move slower

    Describe the phase change evaporation.

  • Liquid to gas

  • Heat absorbed (added)

  • Particles move faster

    Describe the phase change condensation

  • Gas to liquid

  • Heat released (removed)

  • Particles move slower


Aim how can we identify the chemical physical properties of matter pski 3

What is Solubility?

  • How well a substance can dissolve.

    What is a solute?

  • The substance being dissolved

    What is a solvent?

  • The substance doing the dissolving

    Identify the solute & solvent in the following solutions:

  • Salt water – Salt (solute) Water (Solvent)

  • Kool-aid Drink – Kool-aid Mix (solute) Water (solvent)


Aim how can we identify the chemical physical properties of matter pski 3

How does temperature affect solubility?

  • The higher the temperature of the solvent, the more soluble the solute

    How does surface area affect solubility?

  • The greater the surface area of the solute, the faster the solute will dissolve.

    How can you increase the surface area of a substance (sugar cube)?

  • Break is up into smaller pieces

  • Crush it

    How does stirring affect solubility?

  • When a solution is stirred, the solute dissolves faster


Aim how can we identify the chemical physical properties of matter pski 3

70g

70o

45o

20o


Aim how can we identify the chemical physical properties of matter pski 3

Define weight.

  • Weight is a measure of the pull of gravity on an object

    How does the amount of gravity affect weight?

  • The greater the gravitational force acting on an object, the greater its weight.

    Why do we have less weight on the moon?

  • We have less weight on the moon because there is less gravity on the moon than on earth.


Aim how can we identify the chemical physical properties of matter pski 3

What is buoyancy?

  • The upward force of a fluid

    Identify the physical properties of matter.

  • Color, phase of matter, density, conductivity, boiling point, odor, mass, solubility, hardness, freezing point

    Identify the chemical properties of matter.

  • Flammable

  • Reactivity


Ils questions

ILS Questions

Which property of a substance indicates whether the substance is a liquid or a solid at room temperature?

(1) melting point

(2) electrical conductivity

(3) flexibility

(4) solubility

Under which conditions would a sugar cube dissolve most quickly when placed in a liter of water at room temperature?

(1) A whole sugar cube is added and the water is stirred.

(2) A whole sugar cube is added and the water is not stirred.

(3) A crushed sugar cube is added and the water is stirred.

(4) A crushed sugar cube is added and the water is not stirred.


Ils question

ILS Question

All of the liquid from a test tube is poured into a beaker, as shown in the diagram below.

Compared to the liquid that was in the test tube, the liquid in the beaker has

(1) a different volume, but the same shape

(2) a different volume and a different shape

(3) the same volume, but a different shape

(4) the same volume and the same shape

Diagrams A and B show models of how the molecules of the same substance are arranged in two different phases of matter.

Which phases of matter are represented by diagrams A and B?


Ils question1

ILS Question

The data table below shows that as the pressure of a gas sample was changed, the volume of the gas changed. The pressure was measured in atmospheres (atm) and the volume was measured in milliliters (mL).

According to the data table, as the pressure of the gas increases, the volume of the gas

(1) decreases

(2) increases

(3) remains the same


Ils questions1

ILS QUESTIONS

The diagram represents four processes, labeled A, B, C, and D, that occur when water changes phase.

Which process is represented by B?

(1) condensing (3) freezing

(2) evaporating (4) melting

Which two processes increase the motion of the molecules?

(1) A and B (3) C and D

(2) B and C (4) D and A


Ils question2

ILS Question

The graph shows the solubility curves for a solid solute and a gaseous solute.

How many grams of the solid solute will dissolve in 100 grams of water at 25°C?

Describe the relationship between water temperature and the solubility of the gaseous solute from 0°C to 15°C.

State one way to increase the rate at which a solid solute dissolves in 100 grams of water.


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