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RRHS Science 10 Chemistry Slide #1 Fritz Haber Enabled the survival of billions: the Haber Process to synthesize ammonia Ammonia is used to create fertilizer.

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Presentation on theme: "RRHS Science 10 Chemistry Slide #1 Fritz Haber Enabled the survival of billions: the Haber Process to synthesize ammonia Ammonia is used to create fertilizer."— Presentation transcript:

1 RRHS Science 10 Chemistry Slide #1 Fritz Haber Enabled the survival of billions: the Haber Process to synthesize ammonia Ammonia is used to create fertilizer Enabled the death of millions: the “father of chemical warfare” Poison gases of WWI and WWII Haber Video Web Link (File Link)

2 RRHS Science 10 Chemistry Slide #2 Types of Chemical Reactions Synthesis (Combination) Decomposition Single Replacement Double Replacement Combustion

3 RRHS Science 10 Chemistry Slide #3 Synthesis (Combination) Reactions Two or more reactants combine to produce a new product. A+B  AB O+O  OO RUST:4Fe + 3O 2  2Fe 2 O 34Fe + 3O 2  2Fe 2 O 3

4 RRHS Science 10 Chemistry Slide #4 Decomposition Reactions A compound breaks down into two or more compounds or elements. AB  A+B OO  O+O WATER (electrolysis) :2H 2 O  2H 2 + O 22H 2 O  2H 2 + O 2 MERCURY OXIDE:2HgO  2Hg + O 22HgO  2Hg + O 2

5 RRHS Science 10 Chemistry Slide #5 Pop: Synthesis and Decomposition Pop is carbonated water (Carbonic Acid) Synthesis: CO 2 + H 2 O  H 2 CO 3 This causes the pop to fizz and bubble When pop goes flat or is shaken up the opposite happens. Decomposition: H 2 CO 3  CO 2 + H 2 O The CO 2 is released as a gas and water is left over.

6 RRHS Science 10 Chemistry Slide #6 Single Displacement One element of a compound is replaced by a new element to form a new compound. A+BX  AX+B O+OO  OO+O OR AX+Y  AY+X OO+O  OO+O EXAMPLE:2Na + CaCl 2  2NaCl + Ca The sodium and the calcium “trade places”

7 RRHS Science 10 Chemistry Slide #7 Double Displacement The elements of two different compounds exchange places, forming two new compounds. AX+BY  AY+BX OO+OO  OO+OO AgNO 3 + NaCl  AgCl + NaNO 3

8 RRHS Science 10 Chemistry Slide #8 Combustion Reaction A combustion reaction is when oxygen combines with another compound to form water and oxides. Combustion reactions are exothermic: they produce heat and light. Often, the compound reacting with oxygen is an organic compound (contains carbon). Example: Octane (component of gasoline) 2C 8 H O 2  16CO H 2 O Burn a Buck

9 RRHS Science 10 Chemistry Slide #9 Chemical Reactions Video The Five Major Chemical Reactions –YouTubeYouTube –File LinkFile Link

10 RRHS Science 10 Chemistry Slide #10 Problems “Types of Reactions” Worksheet –Identify the Type of Reaction Textbook Word Problems… Pg 145: Q2, Q4 Pg 149: Q9, Q10 Pg 155, Q3, Q4, Q6, Q7, Q8, Q13 “Types of Reactions” Worksheet –Balance Equations

11 RRHS Science 10 Chemistry Slide #11 Carbon Compounds Organic chemistry is the study of compounds that contain carbon. The study of all other compounds is known as inorganic chemistry. Some carbon compounds are not considered organic (carbon dioxide, carbon monoxide and ionic carbonates).

12 RRHS Science 10 Chemistry Slide #12 Hydrocarbons Hydrocarbons are organic compounds that only contain carbon and hydrogen atoms. The main sources of hydrocarbons are crude oil and natural gas. Combustion reactions involving hydrocarbons are exothermic – a lot of energy is released (heat and light). Thermal energy heats our homes and powers transportation.

13 RRHS Science 10 Chemistry Slide #13 Canada’s Resources

14 RRHS Science 10 Chemistry Slide #14 Complete Combustion A reaction can have different levels of combustion depending on how much oxygen is present during the reaction. When the hydrocarbon is burned in a plentiful supply of oxygen complete combustion occurs. Hydrocarbon + oxygen gas → carbon dioxide + water

15 RRHS Science 10 Chemistry Slide #15 Incomplete Combustion A hydrocarbon burned in a poor supply of oxygen results in incomplete combustion. Not as much heat generated. Carbon monoxide and carbon (soot) by-products. hydrocarbon + oxygen gas → carbon dioxide + water + carbon + carbon monoxide Carbon Monoxide is Lethal!

16 RRHS Science 10 Chemistry Slide #16 The Future of Hydrocarbons: Peak Oil ? A Visual Tour of Peak Oil (3:06)A Visual Tour of Peak Oil ABC Catalyst – Peak Oil (12:23)ABC Catalyst – Peak Oil Peak Oil Club of Rome (10:04)Peak Oil Club of Rome How many barrels of oil does the world consume each day?

17 RRHS Science 10 Chemistry Slide #17 The Growing Gap

18 RRHS Science 10 Chemistry Slide #18 International Energy Agency Hydrocarbon Estimates

19 RRHS Science 10 Chemistry Slide #19 Questions About Hydrocarbons Question 1: How would the end of cheap oil affect: –Individuals –Society –The Environment –The Economy Question 2: What actions could (1) individuals and (2) governments take to conserve oil and offset the effects of rising prices? Question 3: Do you agree or disagree with this whole peak oil theory? Why or why not?

20 RRHS Science 10 Chemistry Slide #20 Summary Definitions Synthesis Two or more compounds come together and produce one compound. Decomposition One compound breaks down into two or more compounds. Single Displacement One element replaces another in a compound to produce a new compound. Double Displacement Two elements switch places with each other to produce to new compounds Combustion Oxygen combines with another compound to form water and carbon dioxide.

21 RRHS Science 10 Chemistry Slide #21 Summary Table (without Combustion) Pg 151 of text (with combustion)


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