1. WARM-UP 1/28/15
Rewrite each sentence as balanced chemical equations. Identify each type of reaction.
Hydrogen combines with sulfur to form hydrogen sulfide. Hydrogen is found as H2.
Iron (III) chloride and calcium hydroxide produce iron (III) hydroxide and calcium chloride.

2. Quiz Friday – classifying reactions Warm-Up
1/28/15 Objective
Predict reactants or products of a chemical reaction.
1/28/15 Agenda
Yesterday Recap
Quiz Friday – classifying reactions
Warm-Up
Predicting reactants or products

3. Checking stamps on Friday
1. Homework
1/13/15
1/26/15
2. Warm-up
1/15/15
1/20/15
1/22/15
No stamp? Can still show for half credit.

4. Reactants  Products Recap: Writing Word Equations
Iron reacts with oxygen to produce iron(III) oxide
Iron + Oxygen  Iron (III) oxide
Fe + O2  Fe2O3

5. Recap: Things to remember/note
1) Do you name using molecular or ionic naming system?
2) Most transition metals need a roman numeral to represent charge.
3) Check the polyatomic ion chart on pg. 257 for help.
4) Did you use the correct transition words?
5) Elements by themselves are just the element name.

6. Recap How would you write the following into a chemical equation?
Sodium combines with chlorine to produce sodium chloride.
Solid iron(III) oxide and carbon monoxide gas produce iron metal and carbon dioxide gas.

7. What would sentences for the following equations look like?
Recap
What would sentences for the following equations look like?
Na2O + H2O  NaOH
CS2 + O2  CO2 + SO2

8. WARM-UP 1/28/15
Rewrite each sentence as balanced chemical equations. Identify each type of reaction.
Hydrogen combines with sulfur to form hydrogen sulfide. Hydrogen is found as H2.
Iron (III) chloride and calcium hydroxide produce iron (III) hydroxide and calcium chloride.

9. Predicting Reactants/Products
Seven elements always found as a diatomic (X2).
Hydrogen – H2 Nitrogen – N2
Oxygen – O2 Fluorine – F2
Chlorine – Cl2 Bromine – Br2
Iodine – I2

10. Predicting Reactants/Products
Look at what elements are in the equation.
What charges do they form when they are ions (last semester!)?
Write the formula for when the ions combine.

11. Practice
Complete and balance this equation.
Be + O2  ????

12. Classwork Pg. 331 #14 Pg. 332 #15 Pg. 334 #17b Pg. 335 #19a

13. LAB TOMORROW! CLOSED TOE SHOES PLEASE!!
Possibly working with corrosive chemicals.
No closed toe shoes = mark against homework!

14. Wednesday and Thursday
Tutoring
Wednesday and Thursday
Rm. 401

15. 1/28/15 Homework
No homework 
CLOSED TOE SHOES!