Water

Front 1

Important properties of H2O

Back 1

1. High heat capacity (Due to Hydrogen bonding)

2. Reactivity

3. A universal solvent

4. Cushioning and lubrication

Front 2

Ionic compounds in water

Back 2

*In water, the ions holding molecules together come apart

*Polar water molecules break the ionic bonds

*Ex.= Salt in water

Think: Negative and positive attractions, plus Hydration spheres

Front 3

Organic molecules in water

Back 3

Ex.= Glucose in a solution

*If the molecule binds tightly to water, it will dissolve

*The molecules do NOT dissociate like ionic compounds

*Note- More hydration spheres

Front 4

Hydrophilic and Hydrophobic

Back 4

*Hydrophilic is "water loving" (molecules with polar bonds)

*Hydrophobic is *"water fearing" (molecules with non-polar bonds)

*Polar covalent bonds will attract H2O molecules and dissolve

*Non-polar covalent bonds will not interact with H2O molecules

Front 5

Aqueous Solutions (Solvent to Solute)

Back 5

*The concentration of a solution is expressed in mol/L (moles per liter)

*A SOLUTION is a uniform mixture of substances

*A SOLVENT is a substance (like water) where a solute is being dissolved

*A SOLUTE is the substance being dissolved (like salt)