- Types of Chemistry
- Organic— compounds contain the element Carbon except for the compound CO2.
- Inorganic—compounds that DO NOT contain the element Carbon.
- The 4 most abundant ELEMENTS in living things are C, H, O, and N.
- The most abundant ELEMENT in living things is Carbon.
- The most abundant COMPOUND in living things is H2O.
- Types of MIXTURES—define
- a. Solution: homogeneous-best mixed-
- uniform in color; transparent
- b. Suspension: heterogeneous- most particles
- settle out upon standing; not
- evenly mixed
- c. Colloid: homogeneous mixture-always cloudy; particles
- never settle out; can’t see light
- through it
- Draw the particle size for:
- Solution Colloid Suspension
- Determine the type of MIXTURE for each of the following:
- Dirt in water__________
- Sugar dissolved in hot tea____________
- Egg white____________
- Fog_______________
- Salad dressing___________
- Orange juice with pulp_________
- Milk (homogenized)__________
- Blood____________&______________ explain
- Guntersville lake___________&___________explain
- Determine the type of MIXTURE for each of the following:
- Dirt in water-suspension
- Sugar dissolved in hot tea-solution
- Egg white-colloid
- Fog-colloid
- Salad dressing-suspension
- Orange juice with pulp-suspension
- Milk (homogenized)-colloid
- Blood-solution&-suspension explain:
- food dissolved in blood blood & plasma
- Guntersville lake-solution & suspension explain:
- oxygen dissolved dirt suspended
- Parts of a solution
- *solute: part that is dissolved (usually a solid)
- *solvent: part that does the dissolving (usually a liquid)
- A solution may become SUPERSATURATED. Explain. Sponge- ground after heavy rain-there is too much solute for the solvent-it is impossible for the solution to remain homogeneous-some solute will settle out.
- For the following SOLUTIONS, indicate the part that is the solute and the part that is the solvent:
- Coffee granules in water: coffee is the solute; Water is the solvent
- Fingernail polish remover dissolves fingernail polish: Fingernail polish remover is the solvent; fingernail polish is the solute.
- Gojo hand cleaner dissolves grease on our hands: Gojo is the solvent; grease is the solute.
- Ammonium hydroxide in water: Ammonium hydroxide is the solute; water is the solvent
- 30 ml of 95% alcohol dissolves 0.3 g of methylene blue dye: 95% alcohol is the solvent; methylene blue dye is the solute.
Do'stlaringiz bilan baham: |
