Name: 
 

Ch 11 Chemical Reaction Section 1 & 2



Matching (Value 9)
 
 
Match each item with the correct statement below.
a.
product
d.
balanced equation
b.
reactant
e.
skeleton equation
c.
chemical equation
 

 1. 

a chemical equation that does not indicate relative amounts of reactants and products
 

 2. 

a new substance formed in a chemical reaction
 

 3. 

a starting substance in a chemical reaction
 

 4. 

a concise representation of a chemical reaction
 

 5. 

an equation in which each side has the same number of atoms of each element
 
 
Match each item with the correct statement below.
a.
activity series of metals
c.
combustion reaction
b.
single-replacement reaction
d.
decomposition reaction
 

 6. 

a reaction in which a single compound is broken down into simpler substances
 

 7. 

a reaction in which oxygen reacts with another substance, often producing heat or light
 

 8. 

a reaction in which the atoms of one element replace the atoms of a second element in a compound
 

 9. 

a list of metals in order of decreasing reactivity
 

Multiple Choice (Value 41)
Identify the choice that best completes the statement or answers the question.
 

 10. 

Chemical reactions ____.
a.
occur only in living organisms
c.
only occur outside living organisms
b.
create and destroy atoms
d.
produce new substances
 

 11. 

Everyday equations describe ____.
a.
thermonuclear reactions
c.
chemical reactions
b.
everyday processes
d.
biological chemistry
 

 12. 

What does the symbol mc012-1.jpg in a chemical equation mean?
a.
Heat is supplied to the reaction.
c.
yields
b.
A catalyst is needed.
d.
precipitate
 

 13. 

Chemical equations ____.
a.
describe chemical reactions
b.
show how to write chemical formulas
c.
give directions for naming chemical compounds
d.
describe only biological changes
 

 14. 

A skeleton equation does NOT show which of the following?
a.
the correct formulas of the reactants and products
b.
the reactants on the left, the products on the right
c.
an arrow connecting the reactants to the products
d.
the relative amounts of reactants and products
 

 15. 

Symbols used in equations, together with the explanations of the symbols, are shown below. Which set is correct?
a.
(g), grams
c.
(aq), dissolved in water
b.
(l), liters
d.
(s), solid product
 

 16. 

A catalyst is ____.
a.
the product of a combustion reaction
b.
not used up in a reaction
c.
one of the reactants in single-replacement reactions
d.
a solid product of a reaction
 

 17. 

Which of the following is the correct skeleton equation for the reaction that takes place when solid phosphorus combines with oxygen gas to form diphosphorus pentoxide?
a.
P(s) mc017-1.jpg Omc017-2.jpg(g) ® POmc017-3.jpg(g)
c.
P(s) mc017-7.jpg O2(g) ® Pmc017-8.jpgOmc017-9.jpg(s)
b.
P(s) mc017-4.jpg O(g) ® Pmc017-5.jpgOmc017-6.jpg(g)
d.
Pmc017-10.jpgOmc017-11.jpg(s) ® Pmc017-12.jpg(s) mc017-13.jpg Omc017-14.jpg(g)
 

 18. 

If you rewrite the following word equation as a balanced chemical equation, what will the coefficient and symbol for fluorine be?
nitrogen trifluoride mc018-1.jpg nitrogen mc018-2.jpg fluorine
a.
6Fmc018-3.jpg
c.
6F
b.
Fmc018-4.jpg
d.
3Fmc018-5.jpg
 

 19. 

What are the coefficients that will balance the skeleton equation below?
AlClmc019-1.jpg + NaOH mc019-2.jpg Al(OH)mc019-3.jpg mc019-4.jpg NaCl
a.
1, 3, 1, 3
c.
1, 1, 1, 3
b.
3, 1, 3, 1
d.
1, 3, 3, 1
 

 20. 

When the following equation is balanced, what is the coefficient for HCl?
Mg(s) mc020-1.jpg HCl(aq) mc020-2.jpg MgClmc020-3.jpg(aq) mc020-4.jpg Hmc020-5.jpg(g)
a.
6
c.
1
b.
3
d.
2
 

 21. 

Which of the following statements is NOT true about what happens in all chemical reactions?
a.
The ways in which atoms are joined together are changed.
b.
New atoms are formed as products.
c.
The starting substances are called reactants.
d.
The bonds of the reactants are broken and new bonds of the products are formed.
 

 22. 

Chemical equations must be balanced to satisfy ____.
a.
the law of definite proportions
c.
the law of conservation of mass
b.
the law of multiple proportions
d.
Avogadro’s principle
 

 23. 

When the equation KClOmc023-1.jpg(s) mc023-2.jpg KCl(s) + Omc023-3.jpg(g) is balanced, the coefficient of KClO3 is ____.
a.
1
c.
3
b.
2
d.
4
 

 24. 

What are the missing coefficients for the skeleton equation below?
Almc024-1.jpg(SOmc024-2.jpg)mc024-3.jpg(aq) mc024-4.jpg KOH(aq) ® Al(OH)mc024-5.jpg(aq) mc024-6.jpg Kmc024-7.jpgSOmc024-8.jpg(aq)
a.
1, 3, 2, 3
c.
4, 6, 2, 3
b.
2, 12, 4, 6
d.
1, 6, 2, 3
 

 25. 

The product of a combination reaction is Ba(OH)mc025-1.jpg. If one of the reactants is Hmc025-2.jpgO, what is the other reactant?
a.
Bamc025-3.jpgO
c.
BaH
b.
BaO
d.
BaOmc025-4.jpg
 

 26. 

In order to predict whether or not a single-replacement reaction takes place, you need to consult a chart that shows the ____.
a.
periodic table
b.
activity series of metals
c.
common polyatomic ions
d.
ionic charges of representative elements
 

 27. 

In order for the reaction 2Al mc027-1.jpg 6HCl mc027-2.jpg 2AlClmc027-3.jpg mc027-4.jpg 3Hmc027-5.jpg to occur, which of the following must be true?
a.
Al must be above Cl on the activity series.
b.
Al must be above H on the activity series.
c.
Heat must be supplied for the reaction.
d.
A precipitate must be formed.
 

 28. 

The products of a combustion reaction do NOT include ____.
a.
water
c.
carbon monoxide
b.
carbon dioxide
d.
hydrogen
 

 29. 

In a double-replacement reaction, the ____.
a.
products are always molecular
b.
reactants are two ionic compounds
c.
reactants are two elements
d.
products are a new element and a new compound
 

 30. 

Which of the following statements is NOT correct?
a.
The only way to determine the products of a reaction is to carry out the reaction.
b.
All chemical reactions can be classified as one of five general types.
c.
Complete combustion has occurred when all the carbon in the product is in the form of carbon dioxide.
d.
A single reactant is the identifying characteristic of a decomposition reaction.
 

 31. 

Which of the following is a balanced equation representing the decomposition of lead(IV) oxide?
a.
PbOmc031-1.jpg mc031-2.jpg Pb mc031-3.jpg 2O
c.
Pbmc031-8.jpgO mc031-9.jpg 2Pb mc031-10.jpg O
b.
PbOmc031-4.jpg mc031-5.jpg Pb mc031-6.jpg Omc031-7.jpg
d.
PbO mc031-11.jpg Pb mc031-12.jpg Omc031-13.jpg
 

 32. 

What are the correct formulas and coefficients for the products of the following double-replacement reaction?
RbOH mc032-1.jpg Hmc032-2.jpgPOmc032-3.jpg mc032-4.jpg
a.
Rb(POmc032-5.jpg)mc032-6.jpg mc032-7.jpg Hmc032-8.jpgO
c.
Rbmc032-12.jpgPOmc032-13.jpg mc032-14.jpg 3Hmc032-15.jpgO
b.
RbPOmc032-9.jpg mc032-10.jpg 2Hmc032-11.jpgO
d.
Hmc032-16.jpgRb mc032-17.jpg POmc032-18.jpgOH
 

 33. 

Which of the following statements is NOT true about the decomposition of a simple binary compound?
a.
The products are unpredictable.
b.
The products are the constituent elements.
c.
The reactant is a single substance.
d.
The reactant could be an ionic or a molecular compound.
 

 34. 

Which of the following statements is true about single-replacement reactions?
a.
They are restricted to metals.
c.
Two reactants produce two products.
b.
They involve a single product.
d.
Any metal replaces any other metal.
 

 35. 

Use the activity series of metals to complete a balanced chemical equation for the following single replacement reaction.
Ag(s) mc035-1.jpg KNOmc035-2.jpg(aq) mc035-3.jpg
a.
AgNOmc035-4.jpg mc035-5.jpg K
b.
AgK mc035-6.jpg NOmc035-7.jpg
c.
AgKNOmc035-8.jpg
d.
No reaction takes place because silver is less reactive than potassium.
 

 36. 

Which of the following statements is NOT true about double-replacement reactions?
a.
The product may precipitate from solution.
b.
The product may be a gas.
c.
The product may be a molecular compound.
d.
The reactant may be a solid metal.
 

 37. 

In a double-replacement reaction, ____.
a.
the reactants are usually a metal and a nonmetal
b.
one of the reactants is often water
c.
the reactants are generally two ionic compounds in aqueous solution
d.
energy in the form of heat or light is often produced
 

 38. 

Which of the following is the correctly balanced equation for the incomplete combustion of heptene, Cmc038-1.jpgHmc038-2.jpg?
a.
Cmc038-3.jpgHmc038-4.jpg mc038-5.jpg 14O mc038-6.jpg 7CO mc038-7.jpg 7Hmc038-8.jpgO
c.
2Cmc038-16.jpgHmc038-17.jpg mc038-18.jpg 21Omc038-19.jpg mc038-20.jpg 14COmc038-21.jpg mc038-22.jpg 14Hmc038-23.jpgO
b.
Cmc038-9.jpgHmc038-10.jpg mc038-11.jpg 7Omc038-12.jpg mc038-13.jpg 7CO mc038-14.jpg 7Hmc038-15.jpgO
d.
Cmc038-24.jpgHmc038-25.jpg mc038-26.jpg Omc038-27.jpg mc038-28.jpg Cmc038-29.jpgOmc038-30.jpg mc038-31.jpg 7Hmc038-32.jpg
 

 39. 

The reaction 2Fe mc039-1.jpg 3Clmc039-2.jpg mc039-3.jpg 2FeClmc039-4.jpg is an example of which type of reaction?
a.
combustion reaction
c.
combination reaction
b.
single-replacement reaction
d.
decomposition reaction
 

 40. 

The equation 2Cmc040-1.jpgHmc040-2.jpgOH mc040-3.jpg 9Omc040-4.jpg mc040-5.jpg 6COmc040-6.jpg mc040-7.jpg 8Hmc040-8.jpgO is an example of which type of reaction?
a.
combustion reaction
c.
double-replacement reaction
b.
single-replacement reaction
d.
decomposition reaction
 

 41. 

A double-replacement reaction takes place when aqueous cobalt(III) chloride reacts with aqueous lithium hydroxide. One of the products of this reaction is ____.
a.
Co(OH)mc041-1.jpg
c.
LiComc041-3.jpg
b.
Co(OH)mc041-2.jpg
d.
LiClmc041-4.jpg
 

Short Answer
 

 42. 

Complete and balance the following equation.
Cd(NOsa042-1.jpg)sa042-2.jpg sa042-3.jpg NHsa042-4.jpgCl sa042-5.jpg
 

 43. 

Balance the following equation.
Csa043-1.jpgHsa043-2.jpg sa043-3.jpg Osa043-4.jpg sa043-5.jpg CO sa043-6.jpg Hsa043-7.jpgO
 

 44. 

Balance the following equation.
Ausa044-1.jpgOsa044-2.jpg sa044-3.jpg Au sa044-4.jpg Osa044-5.jpg
 

 45. 

Balance the following equation.
Nasa045-1.jpgPOsa045-2.jpg sa045-3.jpg ZnSOsa045-4.jpg sa045-5.jpg Nasa045-6.jpgSOsa045-7.jpg sa045-8.jpg Znsa045-9.jpg(POsa045-10.jpg)sa045-11.jpg
 

 46. 

Complete and balance the following equation.
Al sa046-1.jpg Clsa046-2.jpg sa046-3.jpg
 

 47. 

Complete and balance the following equation.
CHsa047-1.jpg sa047-2.jpg Osa047-3.jpg sa047-4.jpg COsa047-5.jpg sa047-6.jpg
 

 48. 

Complete and balance the following equation.
Fesa048-1.jpg(SOsa048-2.jpg)sa048-3.jpg sa048-4.jpg Ba(OH)sa048-5.jpg sa048-6.jpg
 

 49. 

Balance the following equation. Indicate whether combustion is complete or incomplete.
Csa049-1.jpgHsa049-2.jpg sa049-3.jpg Osa049-4.jpg sa049-5.jpg CO sa049-6.jpg Hsa049-7.jpgO
 

 50. 

Balance the following equation. Indicate whether combustion is complete or incomplete.
2Csa050-1.jpgHsa050-2.jpgOH sa050-3.jpg Osa050-4.jpg sa050-5.jpg COsa050-6.jpg sa050-7.jpg Hsa050-8.jpgO
 



 
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