Unit 3 Test (Part 2) Review Stoichiometry. Balancing Equations Balance the following chemical equation: Ag 2 O  Ag + O 2.

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Presentation transcript:

Unit 3 Test (Part 2) Review Stoichiometry

Balancing Equations Balance the following chemical equation: ____ Ag 2 O  ____ Ag + ____O 2

Balancing Equations Balance the following chemical equation: 2 Ag 2 O  4 Ag + O 2

Identifying Reaction Types C 6 H O 2  6 CO H 2 O Reaction Type: _________________

Identifying Reaction Types C 6 H O 2  6 CO H 2 O Reaction Type: combustion

Balancing Equations Balance the following chemical equation: __ AlBr 3 + __ K 2 SO 4  __ KBr + __ Al 2 (SO 4 ) 3

Balancing Equations Balance the following chemical equation: 2 AlBr K 2 SO 4  6 KBr + Al 2 (SO 4 ) 3

Stoichiometry: Limiting Reactant SeCl 6 + O 2  SeO Cl 2 How many grams of chlorine can be produced from the reaction of 13.7 grams of SeCl 6 and 13.7 grams of oxygen? Also, what is the limiting reactant?

Stoichiometry: Limiting Reactant SeCl 6 + O 2  SeO Cl 2 How many grams of chlorine can be produced from the reaction of 13.7 grams of SeCl 6 and 13.7 grams of oxygen? Also, what is the limiting reactant? 9.99 g Cl 2 (Limiting reactant = SeCl 6 )

Stoichiometry C 6 H O 2  6 CO H 2 O How many grams of water can be produced from moles of C 6 H 12 ?

Stoichiometry C 6 H O 2  6 CO H 2 O How many grams of water can be produced from moles of C 6 H 12 ? 98.4 g H 2 O

Balancing Equations Balance the following chemical equation: __ HCN + __ CuSO 4  __ H 2 SO 4 + __ Cu(CN) 2

Balancing Equations Balance the following chemical equation: 2 HCN + CuSO 4  H 2 SO 4 + Cu(CN) 2

Stoichiometry C 6 H O 2  6 CO H 2 O How many molecules of water can be produced from 2.49 moles of oxygen?

Stoichiometry C 6 H O 2  6 CO H 2 O How many molecules of water can be produced from 2.49 moles of oxygen? 1.00 x molecules H 2 O

Balancing Equations Balance the following chemical equation: __ C 8 H 18 + __ O 2  __ CO 2 + __ H 2 O

Balancing Equations Balance the following chemical equation: 2 C 8 H O 2  16 CO H 2 O

Identifying Reaction Types Na 3 PO KOH  3 NaOH + K 3 PO 4 Reaction Type: __________________

Identifying Reaction Types Na 3 PO KOH  3 NaOH + K 3 PO 4 Reaction Type: double replacement

Stoichiometry C 6 H O 2  6 CO H 2 O How many grams of carbon dioxide can be produced from 11.2 grams of C 6 H 12 ?

Stoichiometry C 6 H O 2  6 CO H 2 O How many grams of carbon dioxide can be produced from 11.2 grams of C 6 H 12 ? 35.1 g CO 2

Balancing Equations Balance the following chemical equation: ___ Na + ___ H 2 O  ___ NaOH + ___H 2

Balancing Equations Balance the following chemical equation: 2 Na + 2 H 2 O  2 NaOH + H 2

Identifying Reaction Types P O 2  2 P 2 O 3 Reaction Type: __________________

Identifying Reaction Types P O 2  2 P 2 O 3 Reaction Type: synthesis

Stoichiometry: Limiting Reactant SeCl 6 + O 2  SeO Cl 2 If the actual yield of this reaction was 4.6 grams of chlorine, what is the percent yield?

Stoichiometry: Limiting Reactant SeCl 6 + O 2  SeO Cl 2 If the actual yield of this reaction was 4.6 grams of chlorine, what is the percent yield? Percent Yield = 46.0%

Stoichiometry C 6 H O 2  6 CO H 2 O How many moles of carbon dioxide can be produced from 3.37 moles of oxygen?

Stoichiometry C 6 H O 2  6 CO H 2 O How many moles of carbon dioxide can be produced from 3.37 moles of oxygen? 2.25 mol CO 2

Identifying Reaction Types 2 AgNO 3 + Cu  Cu(NO 3 ) Ag Reaction Type: _________________

Identifying Reaction Types 2 AgNO 3 + Cu  Cu(NO 3 ) Ag Reaction Type: single replacement

Stoichiometry: Limiting Reactant 2 AgNO 3 + Cu  2 Ag + Cu(NO 3 ) 2 How many grams of copper (II) nitrate can be produced from the reaction of moles of Cu and moles of AgNO 3 Also, what is the limiting reactant?

Stoichiometry: Limiting Reactant 2 AgNO 3 + Cu  2 Ag + Cu(NO 3 ) 2 How many grams of copper (II) nitrate can be produced from the reaction of moles of Cu and moles of AgNO 3 Also, what is the limiting reactant? 38.1 g Cu(NO 3 ) 2 Limiting Reactant = AgNO 3

Stoichiometry: Limiting Reactant 2 AgNO 3 + Cu  2 Ag + Cu(NO 3 ) 2 If the actual yield of the reaction was 4.44 grams of copper (II) nitrate, what is the percent yield?

Stoichiometry: Limiting Reactant 2 AgNO 3 + Cu  2 Ag + Cu(NO 3 ) 2 If the actual yield of the reaction was 4.44 grams of copper (II) nitrate, what is the percent yield? Percent Yield = 11.7% (Yikes!)

Identifying Reaction Types CaCO 3  CaO + CO 2 Reaction Type: _________________

Identifying Reaction Types CaCO 3  CaO + CO 2 Reaction Type: decomposition