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Questions

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
Why are Polar Bonds important?   sets stage for Hydrogen Bond configuration  
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What is significant about H2O's Hydrogen & Covalent Bonds?   keep H2O's LIQUID state  
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What is water?   Covalently bonded, Polarized molecule  
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What role does water play in chemical reactions?   Media, Ingredient, or Product  
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What is a Solution?   FLUID mixtures of 2 or more substances  
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What is a Solute?   substances DISSOLVED in a liquid  
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What is a Solvent?   LIQUID (esp H2O) in which Solutes dissolve  
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What makes a Solute soluble?   must be POLAR  
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What is Water Solubility?   molecules w/ Polar Bonds or Ionized groups, able to establish H-bonds with H2O  
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What is Water Insolubility?   NON-Polar (neutral) molecules - oil  
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What is Concentration?   # of Solute molecules IN a volume of Solvent  
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What are 2 measurements of Concentration?   Percentage, Molarity  
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What is the difference between Percentages and Molarities?   Percentages: weight in GRAMS per volume; Molarity: Moles per LITER  
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What is a Mole?   Molecular weight in grams  
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What is the composition of Cytoplasm/Cytosol?   1. Water; 2. Ions; 3. Organic Molecules  
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What are Ions?   an electrically charged atom or group of atoms formed by the LOSS or GAIN of one or more Electrons  
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What are 2 functions of Ions?   1. form Electrolytes in H2O; 2. influence pH  
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What Electrolytes are formed in H2O by Ions?   Na+, K+, Cl-, Ca++  
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Give 2 examples where Ions have influenced pH?   HCl, NaOH  
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What are Organic Molecules?   CARBON atoms, Covalently bonded with H, O, N, or S  
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What are the categories of Organic Molecules?   1. Simple - Carbohydrates, Fats; 2. Complex - Proteins, Nucleic Acids  
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