Chemistry Nine Weeks Test B
 
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Chemistry Nine Weeks Test B

Matching
 
 
Match each item with the correct statement below.
a.
molar volume
b.
molar mass
c.
atomic mass
 

 1. 

the number of grams of an element that is numerically equal to the atomic mass of the element in amu
 

 2. 

the mass of a mole of any element or compound
 

 3. 

the volume occupied by a mole of any gas at STP
 
 
Match each item with the correct statement below.
a.
representative particle
d.
percent composition
b.
mole
e.
standard temperature and pressure
c.
Avogadro's number
f.
empirical formula
 

 4. 

the number of representative particles of a substance present in 1 mole of that substance
 

 5. 

an atom, an ion, or a molecule, depending upon the way a substance commonly exists
 

 6. 

the SI unit used to measure amount of substance
 

 7. 

0ma007-1.jpgC and 1 atm
 

 8. 

the percent by mass of each element in a compound
 

 9. 

the smallest whole number ratio of the atoms in a compound
 
 
Match each item with the correct statement below.
a.
product
d.
balanced equation
b.
reactant
e.
skeleton equation
c.
chemical equation
 

 10. 

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

 11. 

a new substance formed in a chemical reaction
 

 12. 

a starting substance in a chemical reaction
 

 13. 

a concise representation of a chemical reaction
 

 14. 

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
 

 15. 

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

 16. 

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

 17. 

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

 18. 

a list of metals in order of decreasing reactivity
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 19. 

What SI unit is used to measure the number of representative particles in a substance?
a.
kilogram
c.
kelvin
b.
ampere
d.
mole
 

 20. 

How many hydrogen atoms are in 5 molecules of isopropyl alcohol, Cmc020-1.jpgHmc020-2.jpgO?
a.
5 mc020-3.jpg (6.02 mc020-4.jpg 10mc020-5.jpg)
c.
35
b.
5
d.
35 mc020-6.jpg (6.02 mc020-7.jpg 10mc020-8.jpg)
 

 21. 

Avogadro's number of representative particles is equal to one ____.
a.
kilogram
c.
kelvin
b.
gram
d.
mole
 

 22. 

The mass of a mole of NaCl is the ____.
a.
molar mass
c.
molecular mass
b.
atomic mass
d.
gram atomic mass
 

 23. 

What is the molar mass of AuCl3?
a.
96 g
c.
232.5 g
b.
130 g
d.
303.6 g
 

 24. 

What is the molar mass of (NHmc024-1.jpg)mc024-2.jpgCOmc024-3.jpg?
a.
144 g
c.
96 g
b.
138 g
d.
78 g
 

 25. 

What does the symbol mc025-1.jpg in a chemical equation mean?
a.
Heat is supplied to the reaction.
c.
yields
b.
A catalyst is needed.
d.
precipitate
 

 26. 

In the chemical equation Hmc026-1.jpgOmc026-2.jpg(aq) ® Hmc026-3.jpgO(l) mc026-4.jpg Omc026-5.jpg(g), the mc026-6.jpg is a ____.
a.
catalyst
c.
product
b.
solid
d.
reactant
 

 27. 

What are the coefficients that will balance the skeleton equation below?
AlClmc027-1.jpg + NaOH mc027-2.jpg Al(OH)mc027-3.jpg mc027-4.jpg NaCl
a.
1, 3, 1, 3
c.
1, 1, 1, 3
b.
3, 1, 3, 1
d.
1, 3, 3, 1
 

 28. 

What are the coefficients that will balance the skeleton equation below?
Nmc028-1.jpg + Hmc028-2.jpg mc028-3.jpg NHmc028-4.jpg
a.
1, 1, 2
c.
3, 1, 2
b.
1, 3, 3
d.
1, 3, 2
 

 29. 

When the following equation is balanced, what is the coefficient for HCl?
Mg(s) mc029-1.jpg HCl(aq) mc029-2.jpg MgClmc029-3.jpg(aq) mc029-4.jpg Hmc029-5.jpg(g)
a.
6
c.
1
b.
3
d.
2
 

 30. 

When potassium hydroxide and barium chloride react, potassium chloride and barium hydroxide are formed. The balanced equation for this reaction is ____.
a.
KH mc030-1.jpg BaCl mc030-2.jpg KCl mc030-3.jpg BaH
c.
2KOH mc030-7.jpg BaClmc030-8.jpg mc030-9.jpg 2KCl mc030-10.jpg Ba(OH)mc030-11.jpg
b.
KOH mc030-4.jpg BaCl mc030-5.jpg KCl mc030-6.jpg BaOH
d.
KOH mc030-12.jpg BaClmc030-13.jpg mc030-14.jpg KClmc030-15.jpg mc030-16.jpg BaOH
 



 
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