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Properties of H2O

Questions

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