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Chapter 7: Q. 7.98 (page 255)

Identify the type of reaction for each of the following as combination, decomposition, single replacement, double replacement, or combustion: (7.5)

a. A compound breaks apart into its elements.

b. Copper and bromine form copper(II) bromide.

c. Iron(II) sulfite breaks down to iron(II) oxide and sulfur dioxide.

d. Silver ion from data-custom-editor="chemistry" AgNO3(aq.) forms a solid with bromide ion from data-custom-editor="chemistry" KBr(aq).

Short Answer

Expert verified

(a) The type of reaction is the decomposition

(b) The type of reaction is combination

(c) The type of reaction is the decomposition

(d) The type of reaction is double replacement

Step by step solution

01

Part (a) Step 1: Given information

We need to find the type of the given reaction

02

Part (a) Step 2: Explanation 

As in the given reaction, a compound is broken up into its elements which is characteristic of decomposition reaction

Therefore, The given reaction is a decomposition reaction.

03

Part (b) Step 1: Given information 

We need to find the type of the given reaction

04

Part (b) Step 2: Explanation  

As in the given reaction, Copper and bromine combine to form a single compound which is characteristic of a combination reaction

Therefore, The given reaction is a combination reaction

05

Part (c) Step 1: Given information 

We need to find the type of the given reaction

06

Part (c) Step 2: Explanation  

As in the given reaction, Iron(II) sulfite breaks down to iron(II) oxide and sulfur dioxide i.e. a single compound is broken up into two new compounds which is characteristic of decomposition reaction

Therefore, The given reaction is a decomposition reaction.

07

Part (d) Step 1: Given information 

We need to find the type of the given reaction

08

Part (d) Step 2: Explanation  

As in the given reaction, two ions are replacing each other i.e. double replacement of ions takes place.

Therefore, The given reaction is a double replacement reaction

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Most popular questions from this chapter

Balance each of the following chemical equations, and identify the type of reaction: (7.4,7.5)

a.data-custom-editor="chemistry" NH3(g)+HCl(g)鈫�NH4Cl(s)

b.role="math" localid="1652567183408" C4H8(g)+O2(g)鈫�鈭�CO2(g)+H2O(g)

c.data-custom-editor="chemistry" Sb(s)+Cl2(g)鈫�SbCl3(s)

d. data-custom-editor="chemistry" NI3(s)鈫�N2(g)+I2(g)

e.data-custom-editor="chemistry" KBr(aq)+Cl2(aq)鈫�KCl(aq)+Br2(l)

f.data-custom-editor="chemistry" Fe(s)+H2SO4(aq)鈫�H2(g)+Fe2(SO4)3(aq)

g.data-custom-editor="chemistry" Al2(SO4)3(aq)+NaOH(aq)鈫�Al(OH)3(s)+Na2SO4(aq)

When nitrogen dioxide (NO2) gas from car exhaust combines with water vapor in the air, it forms aqueous nitric acid (HNO3), which causes acid rain, and nitrogen oxide gas. (7.4,7.7,7.8)

a. Write the balanced chemical equation.

b. How many moles of each product are produced from localid="1653471880792" 0.250moleof H2O?

c. How many grams of HNO3are produced when localid="1653471888239" 60gof NO2completely reacts?

d. How many grams of NO2are needed to form localid="1653471898307" 75.0gof HNO3?

Calculate the molar mass for each of the following :

a. C4H8O4 b. Ga2CO33 c. KBrO4

Calculate the number of moles in each of the following:

a. 85.2gof Ni

b. localid="1653463313267" 144gof K

c. localid="1653463322209" 6.4gofH2O

d. localid="1653463332032" 308gofBaSO4

e.localid="1653463342745" 252.8gof fructose, C6H12O6

Calculate the molar mass for each of the following: (7.2)

a. data-custom-editor="chemistry" ZnSO4, zinc sulfate, zinc supplement

b. data-custom-editor="chemistry" CaIO32, calcium iodate, iodine source in table salt

c. data-custom-editor="chemistry" C5H8NNaO4,monosodium glutamate, flavor enhancer

d. data-custom-editor="chemistry" C6H12O2,isoamyl formate, used to make artificial fruit syrups
See all solutions

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