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Macromolecules
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2. Basic Chemistry
Water

3. Atoms: basic unit of matter
One Carbon atom
Charge on sub atomic particle
Electron cloud
Nucleus
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5. Matter Elements Compounds Ionic Compound Covalent compound Organic
Anything that takes up space/has mass
Elements
Pure substance – 1 type of atom
Compounds
Two or more elements chemically bound
Ionic Compound
Transfer electrons
Covalent compound
Share electrons
Organic
Carbon based molecules
Inorganic
Not carbon based
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6. Water Polarity Hydrogen Bonding Solutions Cohesion Adhesion
Heat capacity
Acids/Bases
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7. uneven distribution of electrons around a molecule
Polarity
uneven distribution of electrons around a molecule
Electrons are attracted to ‘O’ more than ‘H’ creating charged parts of the molecule
Bond – represents sharing an electron
Water

8. Hydrogen Bonds (created because of polarity)
positively charged hydrogen atoms of one water molecule are attracted to the negatively charged oxygen of the next water molecule
Creates properties of water
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9. Definition: attraction between molecules of the same substance
Cohesion
Definition: attraction between molecules of the same substance
Explains:
Bead formation of water on surfaces
Surface tension
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10. Definition: attraction between molecules of different types
Adhesion
Definition: attraction between molecules of different types
Explains:
Meniscus
Capillary action
Transpiration
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11. Humans ability to regulate internal body temperature
Heat Capacity
Definition: amount of heat that water can absorb  hence high boiling point
Explains:
Humans ability to regulate internal body temperature
Why species can live in a body of water for all seasons
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12. Evenly distributed mixture where one substance is dissolved in another
Solution
Evenly distributed mixture where one substance is dissolved in another
thing that does the dissolving (water)
thing that gets dissolved (salt)
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13. Water natural splits into its two ions (charged parts)
Reactant
Product
Dissociation of water
Water natural splits into its two ions (charged parts)
Ration of these ions creates acidic or basic solutions
pH – measure of acidity and alkalinity (basicity)
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Equal H+ and OH-

14. Method of controlling pH changes
Buffers
Method of controlling pH changes
Importance
Human body regulation
Ocean thermal regulation
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15. The End