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Search for Habitable Planets Unit Review

Total questions: 64

Worksheet time: 2hrs 58mins

Name
Class
Date
1.

The analysis of the way matter emits and absorbs radiation is called ___.

a)

astronomy

b)

chemistry

c)

spectroscopy

d)

atomic theory

2.

When electrons of an element reach an "excited" state, ___ lines are produced.

a)

dark

b)

emission (bright)

c)

continuous

d)

invisible

3.

Each element on the periodic table can be identified by its

a)

classification as a solid, liquid or gas.

b)

location on the table.

c)

ability to react to form compounds.

d)

unique spectral "fingerprint."

4.
Emission of light from an atom occurs when an electron
a)
drops from a higher to a lower energy level.
b)
   jumps from a lower to a higher energy level.   
c)
   moves within its atomic orbital.
d)
falls into the nucleus.
5.
Which drawing represents the process by which an emission line is formed?
a)
A
b)
B
c)
C
d)
D
6.
Which drawing represents the process by which an absorption line is formed?
a)
A
b)
B
c)
C
d)
D
7.
The ground state is the highest energy state of an atom.
a)
True
b)
False
8.
For an electron to change from ground state to an excited stated it must...
a)
Absorb energy
b)
Release energy
9.
When talking about energy levels in an atom, what is an "excited state"?
a)
The highest energy state of an atom.
b)
Any level higher than the ground state.
c)
The lowest energy state of an atom.
d)
When an atom loses an electron
10.

If an electron moves from n=4 to n=2 it ____

a)

absorbs energy

b)

releases energy

11.

Choose the correct electron configuration for Beryllium (Be).

a)

1s1

b)

1s2 2s2

c)

1s2 2s2 2p1

12.

Choose the correct electron configuration for Chlorine (Cl).

a)

1s2 2s2 2p1

b)

1s2 2s2 2p6 3s2

c)

1s2 2s2 2p6 3s2 3p5

13.

Which element is 1s2 2s2 2p6 3s2 3p6 4s1?

a)

Sodium (Na)

b)

Lithium (Li)

c)

Potassium (K)

d)

Calcium (Ca)

14.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
15.
What atom matches this electron configuration?
1s2 2s2 2p6 3s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
16.

What is the maximum number of electrons that an S orbital can have?

a)

1 electron

b)

2 electrons

c)

3 electrons

d)

4 electrons

17.
How many valence electrons does Chlorine have?
a)
5
b)
2
c)
7
d)
5
18.
Anions are _______ that form ____________ ions and __________ electrons.
a)
nonmetals, positive, lose
b)
nonmetals, negative, gain
c)
metals, positive, gain
d)
metals, positive, lose
19.
How many electron can be found in a p orbital?
a)
2
b)
3
c)
4
d)
6
20.

The electrons in a polar covalent molecule are shared...

a)

Evenly

b)

Unevenly

c)

Electrons are not shared

d)

None of the Above

21.

The electrons in a nonpolar covalent molecule are shared...

a)

Evenly

b)

Unevenly

c)

Electrons are not shared

d)

None of the Above

22.

The polarity of a bond is determined by...

a)

The sum of the electronegativities of the two atoms

b)

The difference in the electronegativities of the two atoms

c)

The charges of the atoms

d)

None of the Above

23.

Partial charges are present in which type of bond?

a)

Ionic

b)

Nonpolar Covalent

c)

Polar Covalent

d)

Both Polar Covalent and Ionic

24.

In a polar covalent bond, which atom will have a partial positive charge? (choose 2 correct answers)

a)

The atom that attracts fewer electrons

b)

The atom with the greater electronegitivity

c)

The atom that attracts more electrons

d)

The atom with the lower electronegativity

25.

What must the difference in electronegativity between two atoms be in order for the bond between them to be nonpolar covalent?

a)

less than 0.4

b)

greater than 1.7

c)

between 0.4 and 1.7

d)

exactly 0

26.

Is this molecule polar or non-polar?

a)

Polar

b)

Non-polar

27.

Is this molecule polar or non-polar?

a)

Polar

b)

Non-polar

28.

Is this molecule polar or non-polar?

a)

Non-polar

b)

Polar

29.
This is an example of a __________ bond.
a)
non-polar covalent
b)
polar covalent
c)
ionic
d)
metallic
30.
What geometry will this molecular structure have?: PH3
a)
bent
b)
tetrahedral
c)
linear
d)
trigonal pyramidal
31.
What geometry will this molecular structure have?: H2S
a)
bent
b)
tetrahedral
c)
linear
d)
trigonal pyramidal
32.
What geometry will this molecular structure have?: CCl4
a)
bent
b)
tetrahedral
c)
linear
d)
trigonal pyramidal
33.
Will this molecule be polar or nonpolar? CCl4
a)
polar
b)
nonpolar
34.
Will this molecule be polar or nonpolar? H2S
a)
polar
b)
nonpolar
35.
Choose the correct shape for this molecule:
a)
linear
b)
Trigonal pyramidal
c)
Bent
d)
Tetrahedral
36.

Determine the molecular geometry of the given structure.

a)

Trigonal Pyramidal

b)

Trigonal Bipyramidal

c)

Trigonal Planar

d)

Tetrahedral

37.

The geometry of a molecule with 4 bonded pairs of electrons and 0 lone pairs of electrons, AB4

a)

Tetrahedral

b)

Trigonal Planar

c)

Bent

d)

Trigonal Pyramidal

e)

Linear

38.

The geometry of a molecule with 2 bonded pairs of electrons and 2 lone pairs of electrons, AB2E2

a)

Tetrahedral

b)

Trigonal Planar

c)

Bent

d)

Trigonal Pyramidal

e)

Linear

39.

The geometry of a molecule with 3 bonded pairs of electrons and 0 lone pairs of electrons, AB3

a)

Tetrahedral

b)

Trigonal Planar

c)

Bent

d)

Trigonal Pyramidal

e)

Linear

40.
*
a)
linear
b)
trigonal planar
c)
trigonal pyramid
d)
bent of angular
41.
SiCl4 has what shape?
a)
square planar
b)
square pyramidal
c)
tetrahedral
d)
octahedral
42.
What is the shape of H2O?
a)
linear
b)
tetrahedral
c)
bent
d)
trigonal pyramidal
43.
Which of the following is chromate?
a)
CrO42-
b)
CrO32-
c)
CrO22-
d)
CrO2-
44.
Which of the following is nitrate?
a)
NO-
b)
NO2-
c)
NO3-
d)
NO4-
45.
What is the name of K3PO4?
a)
Tripotassium Phosphate
b)
Tripotassium Phosphite
c)
Potassium phosphide
d)
Potassium phosphate
46.
What is the name of Al(NO3)3?
a)
Aluminum trinitrate
b)
Monoaluminum nitrate
c)
Aluminum (III) nitrate
d)
Aluminum Nitrate
47.
What is the name of AgNO3? (hard mode)
a)
Silver Nitrate
b)
Silver Mononitrate
c)
Silver (I) Nitrate
d)
Monosilver Nitrate
48.
What is the name of Mg(OH)2?
a)
Magnesium Hydride
b)
Magnesium Dihydride
c)
Magnesium Dihydroxide
d)
Magnesium Hydroxide
49.
Identify Gallium Sulfate
a)
GaSO4
b)
Ga2(SO4)3
c)
Ga3(SO4)2
d)
Ga2SO4
50.
Identify Cessium Nitrate
a)
CsNO3
b)
Cs2(NO3)3
c)
Cs2NO3
d)
Cs3NO3
51.

The substances listed on the right side of a chemical equation are the

a)

Coefficients

b)

Reactants

c)

Products

d)

Precipitates

52.
The substances listed on the left side of a chemical equation are the
a)
Products
b)
Coefficients
c)
Precipitates
d)
Reactants
53.

MgCl2 represents a chemical

a)

Element

b)

Chemical Formula

c)

Subscript

d)

Coefficient

54.
In chemical reactions, what does the principle of conservation of mass mean?
a)
Matter is not created or destroyed.
b)
The total mass of the reactants is greater than the total mass of the products.
c)
The total mass of the reactants is less than the total mass of the products.
d)
Matter is not changed.
55.

How many different kinds of elements are in C6H12O6?

a)

1

b)

2

c)

3

d)

4

56.

How many atoms of Carbon are in the following formula?

3C2H6

a)

3

b)

6

c)

9

d)

18

57.

How many atoms of Hydrogen are in the following formula?

3C2H6

a)

3

b)

6

c)

9

d)

18

58.

What are the coefficients that will balance the skeleton equation below?

__Na + __F₂ → __NaF

a)

1, 2, 1

b)

2, 1, 2

c)

1,1,1

d)

2,2,2

59.

What are the coefficients that will balance the skeleton equation below?

__Na + __MgF₂ → __NaF + __Mg

a)

2,1,1,2

b)

1,2,1,2,

c)

2, 1, 2, 1

d)

1,2,2,1

60.

What are the coefficients that will balance the skeleton equation below?

__Sn + __HF → __SnF₂ + __H₂

a)

2,1,1,2

b)

1, 2, 1, 1

c)

2,1,2,1

d)

1,2,1,2

61.

What are the coefficients that will balance the skeleton equation below?

__Fe +__O₂ → __Fe₂O₃

a)

3,4,2

b)

4, 3, 2

c)

2,3,4

d)

4,2,3

62.

What are the coefficients that will balance the skeleton equation below?

__CS₂ + __O₂ → __CO₂ + __SO₂

a)

3,1,2,1

b)

3,1,1,2

c)

2,1,1,3

d)

1, 3, 1, 2

63.

What are the coefficients that will balance the skeleton equation below?

__MgS + __O₂ → __MgO + __SO₂

a)

3,2,2,3

b)

2,3,2,2

c)

2,3,2,3

d)

3,2,2,1

64.

What are the coefficients that will balance the skeleton equation below?

__CH₄ + __O₂ → __CO₂ + __H₂O

a)

2,1,2,1

b)

2,1,1,2

c)

1,2,1,2

d)

1,2,2,1

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