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Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures...

Date post: 17-Jan-2018
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Composition of Matter Matter – anything that has mass and takes up space Element – substance that cannot be separated or broken down into simpler substances Atom – smallest unit of an element that maintains the properties of that element
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Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes
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Page 1: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Find your seats and take out your notebook.

Agenda for Tuesday March 22nd 1.Matter and Mixtures Notes

Page 2: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Another resource

www.kendricknovak.wikispaces.com

Page 3: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Composition of Matter• Matter – anything that has mass and takes up

space

• Element – substance that cannot be separated or broken down into simpler substances

• Atom – smallest unit of an element that maintains the properties of that element

Page 4: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Compounds

• Compound – substance with 2 or more different atoms (elements)

• Molecules – smallest unit of a compound that still maintains the properties of the compound

• Chemical Formulas

Page 5: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Mixtures

• Pure substances – only 1 element or compound

• Mixture – combination of 2 or more substances– Homogenous – contains substances blended evenly

throughout– Heterogeneous – a mixture of different substances

that can easily be distinguished from each other

Page 6: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Homogenous Mixtures

• Solution– homogenous mixtures– small particles, cannot be seen with a microscope– Particles do not settle to the bottom

• Examples– Salt water– Sugar water

Page 7: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Heterogeneous Mixtures

• Suspensions - visible particles will settle – Muddy water

Page 8: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Heterogeneous Mixtures• Colloid = suspension where particles will not

settle out of the mixture on their own– Milk, fog, smoke, gelatin desserts

– Tyndall effect – scattering of light by larger particles

• Emulsion – two immiscible (unblendable) liquids mix together– mayonnaise

Page 9: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Predicting Types of Mixtures

1 substance2 Substances

Pure Substance Mixture

Separates easily/ on its own

Suspension

No visible particles, Looks uniform throughoutWon’t separate by physical means

Solution

Visible particles/cloudy

Colloid

Won’t separate on its own/cloudy

Heterogeneous mixture

Homogeneous Mixture

Page 10: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Homework

• Questions 1 – 8 page 44

• Questions 1-3, 7 on page 231

Page 11: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Define homogeneous and heterogeneous mixtures.

Agenda for Wednesday March 23rd 1.Mixture lab

Page 12: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

What is the difference between a compound and an element?

Agenda for Thursday March 24th 1.Solubility Notes2.Solubility Lab

Page 13: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Key Terms• Solute – stuff we want to dissolve

• Solvent – substance in which we dissolve something

• Solubility – maximum amount of solute that can dissolve in a solvent– Different for different substances– Depends on pressure & temp

Page 14: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Concentration

• Concentration – amount of a solute dissolved in a given volume of solution– A lot of solute is called concentrated– Little solute is called dilute

Page 15: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Saturation

• Saturated – a solution that can dissolve no more solute– Excess solute visible

• Unsaturated – can dissolve more solute

• Supersaturated – holds more solute than it normally can

Page 16: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Kool – Aid Lab

Page 17: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Define Solvent and Solute

Agenda for Friday March 25th 1.Quiz2.Solubility of Salt lab3.Concept Review

Page 18: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

List 2 factors that affect solubility.

Agenda for Monday March 28th 1.Salt Lab2.Physical/Chemical Properties

1. Demos

Page 19: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

What is the common name for sodium chloride?

Agenda for Tuesday March 29th 1.Finish Lab2.Physical/Chemical Changes

Page 20: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Properties of Matter

• Physical – characteristic of a material you can manipulate without changing the identity of a substance– shape, size, density, melting point, boiling point, color

• Physical Change - a change in size, shape or state of matter– dissolving

Page 21: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

Properties of Matter

• Chemical - characteristic of a substance that indicates whether it can undergo a certain chemical change– New substances produced– Reactivity, flammability (ability to burn)

• Chemical Change - change of one substance to another– accompanied by heat, light, color, and sound

Page 22: Find your seats and take out your notebook. Agenda for Tuesday March 22 nd 1.Matter and Mixtures Notes.

States of Matter

• Kinetic Theory– All matter is made of atoms and molecules– These particles are always in motion. Higher temp =

faster movement– At same temp., heavier molecules move slower

• 3 different states of matter– Solid, liquid, gas


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