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EQs: Explain the difference between inorganic & organic. Compare polar and nonpolar molecules and give an example of each.
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Atoms & Chemical Bonds Brainpops
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Major Elements of LifeCarbon (C)Hydrogen (H)Oxygen (O)Nitrogen (N)Phosphorous (P)Sulfur (S)
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Organic Molecules
• Must contain Carbon and Hydrogen• Make up most components of living things
• Ex-Glucose (type of sugar)
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MacromoleculesCombine with each other and other elements to form MACROMOLECULES:• Carbohydrates, Lipids, Proteins and
Nucleic Acids
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Inorganic Molecules
• Does not contain both carbon and hydrogen
• non-living substances (can sometimes be found in living things)
• Examples: Water, Salt, Iron, Carbon Dioxide
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Water
• Chemical Formula: H2O• Structure:
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• Electrons are pulled more towards one side of a molecule than the other, resulting in a positive end (pole) and a negative end (pole).
• Example: Water, Sugar
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H2O
= Proton (p+)
= Neutron (no)
= Electron (e-)8 protons!
1 proton 1 proton
Two Hydrogen atoms are held to one Oxygen by a weak covalent bond (sharing electrons)
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Oxygen’s 8 protons are so positive they pull the electrons away from Hydrogen! This results in the oxygen being very negatively charged!
The hydrogens have a positive charge because of their proton
+ +
= Proton (p+)
= Neutron (no)
= Electron (e-)
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NONPOLAR Molecules• Non polar substances have equal charge
distribution (neither end is more + or – than the other)
• Example: oil, CO2
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Hydrogen Bond• When water molecules
are close together, the + of the H is attracted to the – of the O on another molecule
• This is called a hydrogen bond.
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Processing Cornell Notes• pull out all essential vocabulary• add this question next to its answer in the
notes: Are the 4 macromolecules organic or inorganic AND why?
• come up with at least 2 more of your own (use critical thinking page to help!)
• Fill in the summary pyramid then write a 2-3 sentence summary based on it
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Essential Questions
1. Explain the difference between inorganic & organic.
2. Compare polar and nonpolar molecules and give an example of each.