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Synthesis Reactions

prezi on synthesis reactions for honors chem

kashyap patel

on 14 March 2013

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Transcript of Synthesis Reactions

Works Cited Basic facts:
occurs when two or more simple compounds combine to form a more complicated compound
also known as a "combination" reaction
the opposite of decomposition Synthesis Reactions: What are they? Concept: A + B AB
Analogy: When tiny Mario eats a Mushroom, he grows into a bigger Mario! In Basic Terms, Real Life Examples 2H + 0 2HO Our Demonstration: In the flask:
Aluminum + Sodium hydroxide + water
2Al + NaOH + 3H O ---> 2 NaAl(OH) + 3H

When the balloon pops:
2H + O ---> 2H O Brainard, Jean, Ph.D. "Synthesis Reactions Previous: Decomposition Reactions Synthesis Reactions." Synthesis Reactions. FlexBook Platform, 31 Oct. 2012. Web. 12 Mar. 2013. <http://www.ck12.org/chemistry/Synthesis-Reactions/lesson/Synthesis-Reactions/>.

Helmenstine, Anne M., Ph.D. "Synthesis Reaction Definition." About.com Chemistry. About.com, n.d. Web. 12 Mar. 2013. <http://chemistry.about.com/od/chemicalreactions/a/synthesis-reaction.htm>.

Helmenstine, Anne M., Ph.D. "Types of Chemical Reactions." About.com Chemistry. About.com, n.d. Web. 12 Mar. 2013. <http://chemistry.about.com/od/chemicalreactions/a/reactiontypes.htm>.

"Reaction Types: Synthesis." ChemTeam: Synthesis. N.p., n.d. Web. 12 Mar. 2013. <http://www.chemteam.info/Equations/Synthesis.html>. by
Kashyap Patel
Liam Huelsing
Brett Duncan
Jake Bulim Synthesis Reactions 2 2 2 2Na + Cl 2NaCl 2 8Fe + S 8FeS 8 What Can Be Combined? 2 Elements:
C (g) + O (g) CO (g) 2 2 2 Compounds:
CaO (s) + HO (s) Ca(OH) (s) 2 2 Compound & Element:
2SO (g) + O (g) 2 SO (g) 2 2 3 Rules of a synthesis reaction: Always an EXOthermic (heat is released) reaction!
Always has a SINGLE product!
Product is a new substance, has different properties, and reacts differently
Usually, product is made by heating or cooling Hindenburg Disaster What is it? 2 Quiz Time! 1) In a short explanation, what is synthesis?

2) Synthesis is the opposite of:
A) Single Displacement B) Combustion C) Decomposition
D) Double Displacement

3)Which of the following is an example of synthesis:
A) 2HO ---> 2H + O B) 2H + O ---> 2HO
C) Zn + 2HCl ---> H + ZnCl D) HSO + 2NaOH ---> NaSO + 2HO

4) A in a chemical reaction indicates:
A) A catalyst was used B) The reactants were heated
C) The reaction is reversible D) The reaction is balanced

5) In a short explanation, what is an aqueous solution and what is its symbol?

Complete the following word equations, and write and balance the formula equation (all are synthesis reactions):

6) What are the reactants of this experiment?

7) Silver + Sulfur ____________

8) Aluminum + Bromine ____________

9) Which is not an indicator of a chemical reaction?
A) temperature change B) change in state (solid/liquid/gas)
C) color change D) emission of odor

10) What can be combined in a synthesis reaction?
A) an element and a compound B) 2 elements
C) 2 compounds D) all of the above

Bonus Question: What type of chemical reaction is photosynthesis?
A) Single Displacement B) Combustion C) Decomposition
D) Double Displacement an explosion on the German passenger airship LZ 129 Hindenburg Relevance Many hypotheses have risen pertaining to the question as to what had caused the ignition of fuel in the ship. One theory stuck out in particular, the Hydrogen Theory. The combustion may have been caused by a major gas leak. 2 2 2 2 2 2 2 2 2 2 2 4 4 Quiz Answers: 1) A synthesis reaction occurs when elements or smaller compounds are joined together.

2) C) Synthesis is the opposite of decomposition.

3) B) 2H + O ---> 2HO is an example of synthesis.

4) C) It indicates that the reaction is reversible.

5) In an aqueous solution, water is the solvent.

6) Sodium Hydroxide and Water

7) Silver + Sulfur ---> Silver Sulfide; 16Ag + S ---> 8Ag S

8) Aluminum + Bromine ---> Aluminum Bromide; 2Al + 3Br ---> 2AlBr

9) B) Change in state is not an indicator of a chemical reaction.

10) D) All of the above can be combined in a synthesis reaction.

Bonus: D) Photosynthesis is a double displacement reaction. 2 2 2 2 2 2 8 3 2 2 2 2 2 4
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