Chemistry Chapter 11A (Prentice)
 
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Chemistry Chapter 11A (Prentice)

Matching
 
 
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
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. 
What does the symbol mc011-1.jpg in a chemical equation mean?
a.
Heat is supplied to the reaction.
c.
yields
b.
A catalyst is needed.
d.
precipitate
 

 12. 
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
 

 13. 
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
 

 14. 
In the chemical equation Hmc014-1.jpgOmc014-2.jpg(aq) ® Hmc014-3.jpgO(l) mc014-4.jpg Omc014-5.jpg(g), the mc014-6.jpg is a ____.
a.
catalyst
c.
product
b.
solid
d.
reactant
 

 15. 
This symbol (mc015-1.jpg) indicates that ____.
a.
heat must be applied
b.
an incomplete combustion reaction has occurred
c.
a gas is formed by the reaction
d.
the reaction is reversible
 

 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. 
What are the coefficients that will balance the skeleton equation below?
Nmc020-1.jpg + Hmc020-2.jpg mc020-3.jpg NHmc020-4.jpg
a.
1, 1, 2
c.
3, 1, 2
b.
1, 3, 3
d.
1, 3, 2
 

 21. 
When the equation Fe mc021-1.jpg Clmc021-2.jpg mc021-3.jpg FeClmc021-4.jpg is balanced, what is the coefficient for Clmc021-5.jpg?
a.
1
c.
3
b.
2
d.
4
 

 22. 
When the following equation is balanced, what is the coefficient for HCl?
Mg(s) mc022-1.jpg HCl(aq) mc022-2.jpg MgClmc022-3.jpg(aq) mc022-4.jpg Hmc022-5.jpg(g)
a.
6
c.
1
b.
3
d.
2
 

 23. 
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.
 

 24. 
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
 

 25. 
When the equation KClOmc025-1.jpg(s) mc025-2.jpg KCl(s) + Omc025-3.jpg(g) is balanced, the coefficient of KClO3 is ____.
a.
1
c.
3
b.
2
d.
4
 

 26. 
In every balanced chemical equation, each side of the equation has the same number of ____.
a.
atoms of each element
c.
moles
b.
molecules
d.
coefficients
 

 27. 
What are the missing coefficients for the skeleton equation below?
Cr(s) mc027-1.jpg Fe(NOmc027-2.jpg)mc027-3.jpg(aq) mc027-4.jpg Fe(s) mc027-5.jpg Cr(NOmc027-6.jpg)mc027-7.jpg(aq)
a.
4, 6, 6, 2
c.
2, 3, 3, 2
b.
2, 3, 2, 3
d.
1, 3, 3, 1
 

 28. 
What are the missing coefficients for the skeleton equation below?
Almc028-1.jpg(SOmc028-2.jpg)mc028-3.jpg(aq) mc028-4.jpg KOH(aq) ® Al(OH)mc028-5.jpg(aq) mc028-6.jpg Kmc028-7.jpgSOmc028-8.jpg(aq)
a.
1, 3, 2, 3
c.
4, 6, 2, 3
b.
2, 12, 4, 6
d.
1, 6, 2, 3
 

 29. 
When potassium hydroxide and barium chloride react, potassium chloride and barium hydroxide are formed. The balanced equation for this reaction is ____.
a.
KH mc029-1.jpg BaCl mc029-2.jpg KCl mc029-3.jpg BaH
c.
2KOH mc029-7.jpg BaClmc029-8.jpg mc029-9.jpg 2KCl mc029-10.jpg Ba(OH)mc029-11.jpg
b.
KOH mc029-4.jpg BaCl mc029-5.jpg KCl mc029-6.jpg BaOH
d.
KOH mc029-12.jpg BaClmc029-13.jpg mc029-14.jpg KClmc029-15.jpg mc029-16.jpg BaOH
 

 30. 
The product of a combination reaction is Ba(OH)mc030-1.jpg. If one of the reactants is Hmc030-2.jpgO, what is the other reactant?
a.
Bamc030-3.jpgO
c.
BaH
b.
BaO
d.
BaOmc030-4.jpg
 



 
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