From the front, take the paper labeled Please don’t write on it! WARM-UP 11/19/13 From the front, take the paper labeled Please don’t write on it! Read it and take notes on what you understand. There will be some follow-up questions.

Review how to write formulas for ionic and covalent compounds. 11/19/13 Objective Review how to write formulas for ionic and covalent compounds. 11/19/13 Agenda -Chemistry Connections -Compounds Review

WARM-UP: Follow-Up Questions 1) What do terms like saturated, unsaturated, trans fat, and partially hydrogenated mean chemically? Describes the different structures of fat molecules

WARM-UP: Follow-Up Questions 2) Why are fats and oils made by plants and animals? To store chemical energy

WARM-UP: Follow-Up Questions 3) What do chemists usually refer to fats and oils as? Triglycerides

WARM-UP: Follow-Up Questions 4) What does the term “saturated” mean? Each carbon atom is bonded to the maximum number of hydrogen atoms possible.

WARM-UP: Follow-Up Questions 4) What does the term “unsaturated” mean? There are double bonds between carbons that form “kinks” along the molecule chain.

WARM-UP: Follow-Up Questions 5) What is better for your heart health? Saturated or unsaturated fats? Why? Unsaturated fats because they reduce bad cholesterol and increase good cholesterol.

WARM-UP: Follow-Up Questions 6) What does “cis” mean in Latin? What does a “cis” fat look like? Means “on the same side”

WARM-UP: Follow-Up Questions 7) Why did manufacturers not like cis-fats? React more readily with oxygen that results in a shorter shelf life. They start to smell and taste bad quicker.

WARM-UP: Follow-Up Questions 8) What does “trans” mean in Latin? What does a “trans” fat look like? Means “across”

WARM-UP: Follow-Up Questions 9) Why are trans fats still bad for you? They cause an increase in blood levels of low density lipoproteins (LDLs) known as “bad” cholesterol.

WARM-UP: Follow-Up Questions 10) What is healthier for you? Butter or oil? Oil because is an unsaturated fat it is liquid at room temperature and will not build up in your blood vessels like butter does.

WARM-UP: Follow-Up Questions What is the moral of this story? Check nutritional labels for things like “zero grams of trans fat” to see what you are actually putting in your mouth.

1) Do the Compound Review Sheet 2) Use that review to help you with the Intro to Stoichiometry worksheet.

Intro to Stoichiometry worksheet. 11/19/13 Homework Finish two worksheets Compound Review Sheet Intro to Stoichiometry worksheet.