The given chemical reaction should be identified as exothermic and endothermic. Concept Introduction : An exothermic reaction can be defined as the chemical reaction which releases energy during the formation of product therefore the energy value must be written with product molecules in the balance chemical reaction. An endothermic reaction can be defined as the chemical reaction which absorbs energy during the formation of product therefore the energy value must be written with reactant molecules in the balance chemical reaction.

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Answer 1

Question

Chapter 9, Problem 71APP

(a)

Interpretation Introduction

Interpretation : The given chemical reaction should be identified as exothermic and endothermic.

Concept Introduction : An exothermic reaction can be defined as the chemical reaction which releases energy during the formation of product therefore the energy value must be written with product molecules in the balance chemical reaction.

An endothermic reaction can be defined as the chemical reaction which absorbs energy during the formation of product therefore the energy value must be written with reactant molecules in the balance chemical reaction.

(b)

Interpretation Introduction

Interpretation : The given chemical reaction should be identified as exothermic and endothermic.

Concept Introduction : An exothermic reaction can be defined as the chemical reaction which releases energy during the formation of product therefore the energy value must be written with product molecules in the balance chemical reaction.

An endothermic reaction can be defined as the chemical reaction which absorbs energy during the formation of product therefore the energy value must be written with reactant molecules in the balance chemical reaction.

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(7.6)Aluminum oxide decomposes to aluminum and oxygen gas by the following reaction. Al2O3(s)- → 2Al(s) + 3/2 O2(g) A Hrxn 1676 kJ = Is this reaction endothermic or exothermic? [Choose ] [Choose 1676 kJ If 1.049 moles of aluminum was formed by the reaction, how much heat (kJ) would be involved? 440 kJ endothermic 1760 kJ 879 kJ exothermic

(7.6)Classify each of the following change or reaction as endothermic or exothermic. combustion of propane gas [Choose] [Choose endothermic vaporization of rubbing alcohol exothermic condensation of gas to liquid [Choose]

A coffee cup calorimeter contains 25.0 g water at 23.8 C. A 5.00 g sample of an unknown metal at an initial temperature of 78.3 C was dropped into the calorimeter. The final temperature of mixture was 46.3 C. Calculate the specific heat of the metal. The specific heat of water is (4.184)

Answer 2

Question

Chapter 9, Problem 71APP

(a)

Interpretation Introduction

Interpretation : The given chemical reaction should be identified as exothermic and endothermic.

Concept Introduction : An exothermic reaction can be defined as the chemical reaction which releases energy during the formation of product therefore the energy value must be written with product molecules in the balance chemical reaction.

An endothermic reaction can be defined as the chemical reaction which absorbs energy during the formation of product therefore the energy value must be written with reactant molecules in the balance chemical reaction.

(b)

Interpretation Introduction

Interpretation : The given chemical reaction should be identified as exothermic and endothermic.

Concept Introduction : An exothermic reaction can be defined as the chemical reaction which releases energy during the formation of product therefore the energy value must be written with product molecules in the balance chemical reaction.

An endothermic reaction can be defined as the chemical reaction which absorbs energy during the formation of product therefore the energy value must be written with reactant molecules in the balance chemical reaction.

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Answer 3

Question

Chapter 9, Problem 71APP

(a)

Interpretation Introduction

Interpretation : The given chemical reaction should be identified as exothermic and endothermic.

Concept Introduction : An exothermic reaction can be defined as the chemical reaction which releases energy during the formation of product therefore the energy value must be written with product molecules in the balance chemical reaction.

An endothermic reaction can be defined as the chemical reaction which absorbs energy during the formation of product therefore the energy value must be written with reactant molecules in the balance chemical reaction.

(b)

Interpretation Introduction

Interpretation : The given chemical reaction should be identified as exothermic and endothermic.

Concept Introduction : An exothermic reaction can be defined as the chemical reaction which releases energy during the formation of product therefore the energy value must be written with product molecules in the balance chemical reaction.

An endothermic reaction can be defined as the chemical reaction which absorbs energy during the formation of product therefore the energy value must be written with reactant molecules in the balance chemical reaction.

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Answer 4

Question

Chapter 9, Problem 71APP

(a)

Interpretation Introduction

Interpretation : The given chemical reaction should be identified as exothermic and endothermic.

Concept Introduction : An exothermic reaction can be defined as the chemical reaction which releases energy during the formation of product therefore the energy value must be written with product molecules in the balance chemical reaction.

An endothermic reaction can be defined as the chemical reaction which absorbs energy during the formation of product therefore the energy value must be written with reactant molecules in the balance chemical reaction.

(b)

Interpretation Introduction

Interpretation : The given chemical reaction should be identified as exothermic and endothermic.

Concept Introduction : An exothermic reaction can be defined as the chemical reaction which releases energy during the formation of product therefore the energy value must be written with product molecules in the balance chemical reaction.

An endothermic reaction can be defined as the chemical reaction which absorbs energy during the formation of product therefore the energy value must be written with reactant molecules in the balance chemical reaction.

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Answer 5

Chapter 9, Problem 71APP

(a)

Interpretation Introduction

Interpretation : The given chemical reaction should be identified as exothermic and endothermic.

Concept Introduction : An exothermic reaction can be defined as the chemical reaction which releases energy during the formation of product therefore the energy value must be written with product molecules in the balance chemical reaction.

An endothermic reaction can be defined as the chemical reaction which absorbs energy during the formation of product therefore the energy value must be written with reactant molecules in the balance chemical reaction.

(b)

Interpretation Introduction

Interpretation : The given chemical reaction should be identified as exothermic and endothermic.

Concept Introduction : An exothermic reaction can be defined as the chemical reaction which releases energy during the formation of product therefore the energy value must be written with product molecules in the balance chemical reaction.

An endothermic reaction can be defined as the chemical reaction which absorbs energy during the formation of product therefore the energy value must be written with reactant molecules in the balance chemical reaction.

Answer 6

Chapter 9, Problem 71APP

(a)

Interpretation Introduction

Interpretation : The given chemical reaction should be identified as exothermic and endothermic.

Concept Introduction : An exothermic reaction can be defined as the chemical reaction which releases energy during the formation of product therefore the energy value must be written with product molecules in the balance chemical reaction.

An endothermic reaction can be defined as the chemical reaction which absorbs energy during the formation of product therefore the energy value must be written with reactant molecules in the balance chemical reaction.

Answer 7

Chapter 9, Problem 71APP

(a)

Interpretation Introduction

Interpretation : The given chemical reaction should be identified as exothermic and endothermic.

Concept Introduction : An exothermic reaction can be defined as the chemical reaction which releases energy during the formation of product therefore the energy value must be written with product molecules in the balance chemical reaction.

An endothermic reaction can be defined as the chemical reaction which absorbs energy during the formation of product therefore the energy value must be written with reactant molecules in the balance chemical reaction.

Answer 8

(b)

Interpretation Introduction

Interpretation : The given chemical reaction should be identified as exothermic and endothermic.

Concept Introduction : An exothermic reaction can be defined as the chemical reaction which releases energy during the formation of product therefore the energy value must be written with product molecules in the balance chemical reaction.

An endothermic reaction can be defined as the chemical reaction which absorbs energy during the formation of product therefore the energy value must be written with reactant molecules in the balance chemical reaction.

Answer 9

(b)

Interpretation Introduction

Interpretation : The given chemical reaction should be identified as exothermic and endothermic.

Concept Introduction : An exothermic reaction can be defined as the chemical reaction which releases energy during the formation of product therefore the energy value must be written with product molecules in the balance chemical reaction.

An endothermic reaction can be defined as the chemical reaction which absorbs energy during the formation of product therefore the energy value must be written with reactant molecules in the balance chemical reaction.

Answer 10

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Answer 12

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Answer 13

Ch. 9.1 - Calculate the total mass of the reactants and the...Ch. 9.1 - Calculate the total mass of the reactants and the...Ch. 9.2 - Calculate the total mass of the reactants and the...Ch. 9.2 - Write all of the mole-mole factors for each of the...Ch. 9.2 - For the chemical equations in problem 9.3, write...Ch. 9.2 - For the chemical equations in problem 9.4, write...Ch. 9.2 - The chemical reaction of hydrogen with oxygen...Ch. 9.2 - Ammonia is produced by the chemical reaction of...Ch. 9.2 - Carbon disulfide and carbon monoxide are produced...Ch. 9.2 - In the acetylene torch, acetylene gas burns in...

Solution Summary: The author explains that an exothermic reaction is defined as the chemical reaction which releases energy during the formation of product, while an endothermitic reaction absorbs energy.

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Chapter 9 Solutions