Log inSign up for FREE
Library

Semester 2 Exam

Last updated over 3 years ago
60 questions
2

Iron rusts according to the following equation: __ Fe(s) + __ O2(g) → __ Fe2O3(s)
Balance the equation(type your answer in as 5, 6, 7 separate the coefficients with commas).

2

Given the following chemical equation.
__ Fe(s) + __ O2(g) → __ Fe2O3(s)
Identify the type of chemical reaction.

2

Given the following chemical equation.
____ C5H12(g) →____ C(g) + ____ CH4(g)
Identify the type of chemical reaction.

2

Given the following chemical equation.
____ Sr(s) + ____ F2(g) →____ SrF2(s)
Identify the type of chemical reaction.

2

Given the following chemical equation.
____ Al2(CO3)3(s) → ____ Al2O3(s) + ____ CO2(g)
Identify the type of chemical reaction.

6

Balance each chemical equation.
____ Ni2S3(s) → ____ Ni(s) + ____ S(s)
Balance the equation(type your answer in as 5, 6, 7 separate the coefficients with commas).

2

Given the following chemical equation.
____ Ni2S3(s) → ____ Ni(s) + ____ S(s)
Identify the type of chemical reaction.

2

Given the following chemical equation.
_____C3H6(g) + ______O2(g) →______CO(g) + ______H2O(l)
Identify the type of chemical reaction.

2

Given the following chemical equation.
_____C3H6(g) + ______O2(g) →______CO(g) + ______H2O(l)
Which substances are gases?

2

Given the following chemical equation.
__Pb + __FeSO4 🡪 __PbSO4 + __Fe
Identify the type of chemical reaction.

8

Balance each chemical equation.
__RbNO3 + __BeF2 🡪 __Be(NO3)2 + __RbF
Balance the equation(type your answer in as 5, 6, 7, 8 separate the coefficients with commas).

8

Balance each chemical equation.
__Na3PO4 + __KOH 🡪 __NaOH + __K3PO4
Balance the equation(type your answer in as 5, 6, 7, 8 separate the coefficients with commas).

8

EXTRA CREDIT:
__AlI3 + __Mn(SO3)2 🡪 __Al2(SO3)3 + __MnI4

Balance the equation(type your answer in as 5, 6, 7, 8 separate the coefficients with commas).

2

All of the following are equal to Avogadro's number EXCEPT ____.

2

1 mole CaCl₂ = 6.02 x1023 ______

2

1 mole N₂ = 6.02 x1023 ______

2

1 mole Cu = 6.02 x1023 ______

2

Law of conservation of mass states...

2

Molar Mass is

2

What does avogadro's number tell us?

2

What information might be most useful for me to find molar mass?

2

What is Avogadro's number?

2

Avogadro's number of representative particles is equal to one ____.

2

What is the molar mass of methane(CH4)?

6

Given 81.20 grams of CaF2 how many formula units in the sample?

6

What is the molar mass of acetic acid: HCH3COOH?

6

Given 5.012x1024 atoms of silicon, how many grams of silicon are in the sample?

2

Which combination of bonds is present in this molecule?

2

Which exception to the octet rule is shown by beryllium in this molecule?

2

Which one will NOT form a diatomic molecule?

2

Which type of bond has one pair of electrons shared between atoms?

2

In the compound PCl3, how many total valence electrons are present?

2

Which type of bond has an electronegativity difference greater than 1.7?

2

How many pairs of bonding electrons are in a molecule that displays sp2 hybridization?

2

How many pairs of bonding electrons are present in a molecule that displays trigonal bipyramidal molecular shape?

2

What molecular shape does the compound CH4 have?

2

Which is the correct formula for the compound dinitrogen monoxide?

2

Which is the formula for the compound sulfur hexachloride?

2

Name the compound NS2

2

Name the compound PS3

4

Give the formula for the covalent compound tetrasulfide heptaoxide

2

What does the prefix nona- represent?

2

How many sigma bonds in the molecule?

10

Essay--Write the answer to one essay question in the space provided below.
FCA’s 1. Write in complete sentences and paragraph form.
2. Use Chapter 8 terminology to answer questions(example: hybridization, double bond, lone pairs, etc...).
3. Provide inferences, other thoughts, or personal experiences in your answer whenever possible.

#1 Explain why is PCl5 an exception to the octet rule, while PCl3 is not?

#2 Vanderwaal's forces, Dipole-Diple moment, and Hydrogen bonding are used to explain bonding between covalent compounds. Explain which is the strongest of the three bonding forces and how the molecules bond according to this force.

#3 Explain why Lithium(III) chloric is not a correct name for the ionic compound formed between lithium and chlorine.

#4 Explain why it is not possible to write a correct chemical formula for the compound nitrogen hydride.

2

Which is true of the model of metallic bonding shown in this figure?

2

Which is the charge that results when oxygen becomes an ion?

2

Which is a property of substances that exhibit metallic bonding?

2

Which is a physical property of ionic compounds in their solid state?

2

Which is the correct formula for the compound formed between beryllium and nitrogen?

2

Which is the correct formula for the compound formed between lithium and sulfur?

2

Which is the correct formula for the compound Manganese (III) Fluoride?

2

Which is the correct name for the compound Fe2S3?

2

Which is the correct name for the compound CaClO3?

2

Which is the correct name for the compound Na3PO4?

2

The name of the anion PO3-3 is ____________________ ion.

2

The name of the anion NO2-1 is ____________________ ion.

2

Write the chemical names for each of the following compound CaF2.

2

EXTRA CREDIT: Write the chemical name for the following compound NH4F.

2

Write the chemical formula for the following ionic compound: Barium iodide

8

EXTRA CREDIT:
__C3H4O3 + __O2 🡪__CO2 +__H2O

Balance the equation(type your answer in as 5, 6, 7, 8 separate the coefficients with commas).