SCIENCE REVIEWER

• The following are characteristics of gas except

  a. highly conpressable

  b.expand in all directions

  c. least dense 

  d. occupies space and mass
• force applied by gas particles per unit area

  pressure
• The amount of space occupied by gas molecules

  Volume
• The hotness or coldness of gas

  Temperature
• Amount of gas Avogadro's number

  N number of moles
• Gas molecules are far greater than the molecules' dimensions which possess negligible mass and volume
• Gas molecules are always constant random motion, and they frequently collide with one another and with the walls of the container
• There is neither attractive nor repulsive force between or among gas molecules
• Movement of gas molecules is affected by temperature
• An increase in temperature will increase the average kinetic of the molecules
• As one goes Up the other goes down
• As the temperature of a gas increases, it's volume also increases
• Irish chemist in 1600s

  Robert Boyle
• The law was discovered by Robert Boyle in 1662
• Boyle's Law states that at constant pressure, the volume of a given mass of gas varies directly with its absolute temperature.
• Temperature is held constant increasing the volume of gas decreases it pressure
• Boyle's Law is inversely proportional
• When the plunger on a sealed syringe is pushed

  Boyle's Law
• Deep sea fish die when they are brought from the depths to the surface Boyle's Law
• French physicist in 1700s

  Jacques Charles
• Pressure is held constant increasing the temperature of gas increase the volume

  Charle's Law
• Is the basic unit of temperature

  Kelvin
• Are the most essential organic molecules

  Biomolecules
• Types of biomolecules

  Carbohydrates

  Lipids

  Proteins

  Nucleic Acids
• Biomolecules are composed of macromolecules
• Carbohydrates

  Carbon, hydrogen, oxygen
• Proteins

  Carbon, hydrogen, oxygen, nitrogen, sulfur
• Lipids

  Carbon, hydrogen, oxygen, phosphorus, sulfur
• Nucleic acid

  Carbon, hydrogen, oxygen, phosphorus, nitrogen, sulfur
• The unit of energy

  Calories
• Major source of energy for the body

  Carbohydrates
• Single unit

  Monomer
• A long string of monomers

  Polymer
• Chemically defines as polyhydroxy aldehydes

  Carbohydrates
• Compounds which produce them on Hydrolysis

  Ketones
• Substance that taste sweet

  Sugar
• Sakcharon=sugar

  Saccharides
• One unit of sugar

  Monosaccharides
• Two unit of sugar

  Disccharides
• Many units of sugar

  Polysaccharide