6.8 - TYPES OF REACTIONS Type of Reaction Definition Examples

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1 Name: Date: hemistry ~ Ms. Hart lass: Anions or ations TYPE OF REATION Type of Reaction Definition Examples ynthesis 2H 2 + O 2 à 2H 2O 4Fe + 3O 2 à 2Fe 2, N 2 + 3H 2 à 2NH 3 H 2O à H 2 + O 2 ao 3 à ao + O 2 Decomposition ingle Replacement u + 2AgNO 3 à u(no 3) 2 + 2Ag F 2 + 2Nal à l 2 + 2NaF Double Replacement AgNO 3 + Nal à Agl + NaNO 3 Na 2 + 2Hl à H 2 + 2Nal ombustion 2H 2(g) + O 2 (g) à 2H 2O(g)

2 ARTOON HEMITRY Describe the chemical reaction illustrated below each diagram:

3 Try These: lassify the following reactions as synthesis (), decomposition (D), single replacement (R), or double replacement (). 1) Pb(NO 3) 2 (aq) + 2KI (aq) à PbI 2(s) + 2KNO 3(aq) 2) Zn (s) + uo 4 (aq) à ZnO 4(aq) + u(s) R 3) 2Mg (s) + O 2 (g) à 2MgO (s) 4) H 2O 3 (aq) à H 2O (l) + O 2 (g) D LAWORK: Part I: lassify the reactions as synthesis (), decomposition (D), single replacement (R), or double replacement (). 5) Fel 3 (aq) + 3NaOH (aq) à Fe(OH) 3 (s) + 3Nal (aq) - 6) l 2 (g) + 2NaBr (aq) à 2Nal (aq) + Br 2 (l) - R 7) 2KlO 3 (s) à 2Kl (s) + 3O 2 (g) - D 8) 2K(s) + 2H 2O (l) à 2KOH (aq) + H 2 (g) - R Part II: Answer the following questions. 1. Given the balanced equation: 2KlO 3 à 2Kl + 3O 2 Which type of reaction is represented by this equation? (1) synthesis (2) decomposition (3) single replacement (4) double replacement 2. Which list includes three types of chemical reactions? (1) condensation, double replacement, and sublimination (2) condensation, solidification, and synthesis (3) decomposition, double replacement, and synthesis (4) decomposition, solidification, and sublimation 3. Given the balanced equation: AgNO 3 (aq) + Nal (aq) à NaNO 3 (aq) + Agl (s) This reaction is classified as (1) synthesis (2) decomposition (3) single replacement (4) double replacement

4 4. Given the reaction between two different elements in the gaseous state: Box A below represents a mixture of the two reactants before the reaction occurs. The product of this reaction is a gas. In Box B, draw the system after the reaction has gone to completion, based on the Law of onservation of Matter. Part III: Balance and classify these reactions as synthesis (), decomposition (D), single replacement (R), and double replacement (). Balance the equation and classify it. 1. Mg(OH) Hl à Mgl H 2O 2. Na 2O Hl à 2 Nal + H 2O NH 4NO 2 à N H 2O D 4. 2 N O 2 à 2 N 2O 5 5. MgO 3 à MgO + O 2 D 6. 2 KBr + l 2 à 2 Kl + Br 2 R 7. Zn + uo 4 à u + ZnO 4 R

5 6.8 hemical Reactions - HOMEWORK GOOD PRATIE MAKE PERFET Identify what type of reaction each of the following is synthesis (), decomposition (D), combustion (), single-displacement (D), or double-displacement (DD). R 2 KI + l 2 à 2 Kl + I 2 2 Zn + O 2 à 2 ZnO + 2 K 2O 3 + uo 4 à uo 3 + K 2O 4 D 2 NaHO 3 à Na 2O 3 + H 2O + O 2 H 2O + O 3 à H 2O 4 2 H 2 + O 2 à 2 H 2O D ao 3 à ao + O 2 Li 2O + H 2O à 2 LiOH K 2O AgNO 3 à Ag 2O KNO 3 R H 2O 4 + Zn à ZnO 4 + H 2 D 2 KlO 3 à 2 Kl + 3 O 2 3H O 2 à 3 O H 2O o(oh) HNO 3 à o(no 3) HOH ao + H 2O à a(oh) 2 D Ba(lO 3) 2 à Bal O 2 D Na 2O 3 à Na 2O + O 2 2 Ag 2H 3O 2 + K 2rO 4 à Ag 2rO K 2H 3O 2 2 KOH + H 2O 4 à K 2O HOH 2 2H 5H + 9 O 2 à 4 O H 2O + 2 O 2 2 KI + l 2 à 2 Kl + I 2 2 Nal + H 2O 4 à Na 2O Hl Al(OH) H 2H 3O 2 à Al( 2H 3O 2) HOH 6H 12O O 2 à 6 O H 2O D Ni(lO 3) 2 à Nil O 2 d 3(PO 4) (NH 4) 2 à 3 d + 2 (NH 4) 3PO 4 2Li + O 2 à 2Li 2O 2Na + l 2 à 2Nal 4Fe + 3O 2 à 2Fe 2O 3

6 AgNO 3 + Nal à Agl + NaNO 3 R a + H 2O à a(oh) 2 + H 2 al 2 + 2AgNO 3 à a(no 3) 2 + 2Agl H 4 + 2O 2 à O 2 + 2H 2O ample Regents Questions and More Practice! 1. Given the word equation: sodium chlorate sodium chloride + oxygen Which type of chemical reaction is represented by this equation? (1) double replacement (2) single replacement (3) decomposition (4) synthesis 2. In which type of chemical reaction do two or more reactants combine to form one product, only? (1) synthesis (2) decomposition (3) single replacement (4) double replacement 3. Given the balanced equations representing two chemical reactions: l2 + 2NaBr 2Nal + Br2 2Nal 2Na + l2 Which type of chemical reactions are represented by these equations? (1) single replacement and decomposition (2) single replacement and double replacement (3) synthesis and decomposition (4) synthesis and double replacement 4. Which balanced equation represents a single-replacement reaction? (1) Mg + 2AgNO3 Mg(NO3)2 + 2Ag (2) 2Mg + O2 2MgO (3) MgO3 MgO + O2 (4) Mgl2 + 2AgNO3 2Agl + Mg(NO3)2 Read pages in your textbook and answer question #3 from page 264 in the space below: 3. a. b. R c. D d. e. D f. g.

7 Look ahead? Tomorrow, we will be learning about the activity series. Read pages to get a sneak peak!