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Spring Snapshot Review

Total questions: 42

Worksheet time: 3615secs

Name
Class
Date
1.

How did Mosley arrange the periodic table?

a)

Atomic Number

b)

Atomic Mass

c)

Radius

d)

Staility

2.

How did Mendeleev organize the periodic table?

a)

Number

b)

Mass

c)

Stability

d)

Raidus

3.

How many valence electrons does a Group 1 Metal have?

a)

1

b)

2

c)

3

d)

4

4.

What group of elements are Group 1 metals most reactive with?

a)

nonmetals

b)

Noble Gasses

c)

Alkali metals

d)

Transition metals

5.
True or false: Noble gases react with water
a)
True
b)
False
6.
Which of these is not a noble gas?
a)
Helium
b)
Argon
c)
Nitrogen
d)
Krypton
7.

What is the mass of an electron?

a)

1 amu

b)

basically weightless

c)

2 amu

8.
The mass of one proton is greater than the mass of one...
a)
neutron
b)
electron
9.
How many electrons does an atom with 8 protons have?
a)
8
b)
16
c)
15.99
d)
24
10.
What particle was used in the gold foil experiment?
a)
Beta Particle
b)
Alpha particle
c)
Gamma ray 
11.

How can you tell a Bohr model from other atomic models?

a)

Electrons are contained in an electron cloud

b)

Electrons are in fixed orbits around the nucleus

c)

Negative electrons are scattered throughout a positively charged matrix (think plum pudding)

12.
How many electrons should Oxygen have around its Lewis dot model?
a)
5
b)
6
c)
7
d)
8
13.
What is the correct formula for this molecule?
a)
NH
b)
N3H
c)
NH3
d)
NH4
14.
What is the correct formula for this molecule?
a)
Si4F
b)
SiF4
c)
SiF
d)
Si4F4
15.
Which of the following is the correct Lewis dot structure for the molecule fluorine (F2)?
a)
A
b)
B
c)
C
d)
D
16.
phosphorus trichloride
a)
KCl3
b)
PCl3
c)
K3Cl
d)
P3Cl
17.
silicon dioxide
a)
SO2
b)
NaO2
c)
SiO2
d)
SiO
18.
What is the name of this compound?  Na2CO3
a)
Disodium carbonate
b)
Sodium III carbonate
c)
Sodium II carbonate
d)
Sodium carbonate
19.
What is the name of CaSO4
a)
Calcium sulfide
b)
Calcium sulfate
c)
Calcium sulfite
d)
Calcium II sulfate
20.
Which state of matter has tightly packed molecules?
a)
solid
b)
liquid
c)
gas
21.
The state of matter that has no definite size or shape is
a)
Solid
b)
Liquid
c)
Gas
22.
What is the molar mass of table salt (NaCl)?
a)
116.886 g/mol
b)
35.453 g/mol
c)
22.990 g/mol
d)
58.443 g/mol
23.
What is the mass of one mole of aluminum chloride (remember to determine the correct formula first)?
a)
62.435g
b)
116.399g
c)
133.341g
d)
97.888g
24.
For the Balanced Reaction: 3 Mg + 1 Fe2O3 → 3 MgO + 2 Fe; What is the Ratio of moles of MgO to moles Fe?
a)
3mol Mg / 2 mol Fe
b)
2 mol Mg/ 3 mol Fe
c)
1 mol Fe/ 2 mol Fe
d)
3 mol MgO / 2 mol Fe
25.
Cl2 + 2KBr → Br2 + 2KCl
How many grams of potassium chloride (KCl) can be produced from 356 g of potassium bromide (KBr)?
a)
749 g
b)
223 g
c)
479 g
d)
814 g
26.
Balance the following reaction :
 
CaC₂(s)   +   H₂O(l)   -->   C₂H₂(g)   +   Ca(OH)₂(aq)
a)
1,2,2,2
b)
1,2,1,1
c)
2,1,1,1
d)
2,1,2,1
27.

4 Al + 3 O2 –> 2 Al2O3 How much aluminum would be needed to completely react with 45 grams of O2?

a)

1.05 moles

b)

3.75 moles

c)

0.875 grams

d)

1.875 moles

28.
What is the first thing you must do to solve a stoichiometry problem?
a)
Write a Balanced Equation
b)
Panic
c)
Write an Unbalanced Equation
d)
Avogadro's Number
29.
KNO3 --> KNO2 + O2
What coefficients are needed to balance the reaction?
a)
2, 2, 1
b)
2, 3, 2
c)
1, 2, 2
d)
1, 3, 1
30.
2 NaClO3 (s) --> 2NaCl (s) +3 O2 (g)  
12.00 moles of NaClO3 will produce how many grams of O2?
a)
256 g of O2
b)
576 g of O2
c)
288 g O2
31.

If the mass of all the reactants is 70.00 grams, then according to the principle of Conservation of Matter, the mass of products would be

a)

70.00 grams

b)

less than 70.00 grams

c)

more than 70.00 grams

d)

140.00 grams

32.
How many molecules are in 2.5 mol of NaCl?
a)
1.51x1023
b)
146
c)
4.15
d)
1.51x1024
33.
How many molecules of sugar (C6H12O6) are in a mole?
a)
24 molecules
b)
180 molecules
c)
180 g
d)
6.02 x 1023 molecules
34.
How many atoms of carbon are in 6.00g of carbon?
a)
1.20x1024atoms C
b)
6.02x1023atoms C
c)
3.01x1023atoms C
d)
1.50x1023atoms C
35.
What is the mass of 0.89 mol of CaCl2?
a)
111 grams
b)
0.008 grams
c)
98.9 grams
d)
none of the choices
36.
How many moles are in 16.94g of water?
a)
16.94 mol H2O
b)
0.9401 mol H2O
c)
305.3 mol H2O
d)
1.063 mol H2O
37.
How many molecules are in 9.44 moles of AlCl3?
a)
5.68 molec AlCl3
b)
5.68x1024 molec AlCl3
c)
0.705 molec AlCl3
d)
1.25x1023 molec AlCl3
38.
Is the equation balanced?: 2H2O + O2 --> 4MgO + 3Fe
a)
Yes
b)
No
39.
Balance this equation
_Al +_HCl --> _H2 +_AlCl3
a)
2, 6, 3, 2
b)
it is already balanced
c)
4, 12, 3, 4
d)
2, 1, 4, 5
40.
When 12 moles of O2 reacts with 1.1 mole of C10H8 what is the limiting reactant?  C10H8 + 12 O2 --> 10 CO2 + 4 H2O
a)
Oxygen
b)
C10H8
c)
Water
d)
Carbon Dioxide
41.
Fe + S --> FeS
If 7.62g Fe react with 8.67g S, what is the limiting reactant?
a)
Fe
b)
S
c)
FeS
d)
none 
42.
CH4 + 2H2O --> CO2 + 4H2
What is the limiting reactant when 20g CH4 react with 15g H2O?
a)
CH4
b)
H2O
c)
CO2
d)
H2

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