Quiz about Chemistry Final

Question 1

How many atoms of oxygen are represented in

Accepted Answer

16

Answer

2

Answer

4

Answer

8

Question 2

A solid produced from two aqueous solutions in a chemical reaction is known as a(n)

Accepted Answer

precipitate

Answer

oxide

Answer

salt

Answer

hydrocarbon

Question 3

Classify the following reaction:

Accepted Answer

double replacement

Answer

single replacement

Answer

combustion

Answer

decomposition

Question 4

Which of the following statements best describes the following reaction?

Accepted Answer

the reaction will not occur

Answer

it is a double replacement reaction

Answer

it is a decomposition reaction

Answer

it is a synthesis reaction

Question 5

Which of the following would not be considered evidence of a chemical reaction?

Accepted Answer

State of matter change

Answer

Formation of a precipitate

Answer

Production of a gas

Answer

Sudden release of light

Question 6

Which of the following statements best describes the following reaction?

Accepted Answer

it is a single replacement reaction

Answer

it is a decomposition reaction

Answer

it is a synthesis reaction

Answer

the reaction will not occur

Question 7

Which of the following best represents the general equation for a synthesis reaction?

Accepted Answer

A + B -> AB

Answer

AB -> A + B

Answer

AX + B -> BX + A

Answer

AX + BY -> AY + BX

Question 8

Balance the following reaction.

Accepted Answer

2 + 1 -> 2

Answer

1 + 1 ->1

Answer

2 + 2 -> 2

Answer

3 + 1 -> 3

Question 9

Classify the following reaction.

Accepted Answer

synthesis

Answer

single

Answer

decomposition

Answer

double

Question 10

Which of the following is the correct name for NiO?

Accepted Answer

Nickel (II) oxide

Answer

Nickel oxide

Answer

Nickel (I) oxide

Answer

None of these

Question 11

Using the graduated cylinder to the right, select the most accurate AND precise measurement.

Accepted Answer

20.0 mL

Answer

22 mL

Answer

20 mL

Answer

22.0 mL

Question 12

Balance the following reaction.

Accepted Answer

2 + 1 -> 1 + 1

Answer

1 + 1 -> 1 + 1

Answer

2 + 2 -> 2 + 1

Answer

3 + 3 -> 3 + 1

Question 13

Classify the following reaction.

Accepted Answer

single

Answer

synthesis

Answer

decomposition

Answer

double

Question 14

Balance the following reaction.

Accepted Answer

1 -> 1 + 2

Answer

1 -> 1 + 1

Answer

2 -> 2 + 2

Answer

2 -> 2 + 1

Question 15

Classify the following reaction.

Accepted Answer

decomposition

Answer

synthesis

Answer

single

Answer

double

Question 16

Balance the following reaction.

Accepted Answer

1 + 2 -> 1 + 2

Answer

1 + 1 -> 1 + 1

Answer

2 + 2 -> 2 + 2

Answer

3 + 1 -> 3 + 1

Question 17

Classify the following reaction.

Accepted Answer

double

Answer

synthesis

Answer

single

Answer

decomposition

Question 18

What mass of hydrogen would you expect to be produced from the reaction to the right?

Accepted Answer

2 g

Answer

63 g

Answer

70 g

Answer

200 g

Question 19

Complete the following equations. Then balance.

Accepted Answer

8 BaS

Answer

BaS

Answer

B.

Answer

C.

Question 20

Complete the following equations. Then balance.

Accepted Answer

2 NaCl + CuS

Answer

NaCl + CuS

Answer

CuNa + ClS

Answer

ClNa + SCu

Question 21

Complete the following equations. Then balance. Single: Mg + HCl ->

Accepted Answer

Option D is correct

Answer

MgCl + H

Answer

2 MgClH

Answer

2 MgCl + 2 H

Question 22

Find the molar mass of acetylene gas (C2H2)

Accepted Answer

26.038 g

Answer

28.63 g

Answer

23.86 g

Answer

26

Question 23

Determine the number of moles of water formed if you start with 12.00 moles of acetylene gas

Accepted Answer

12 mol

Answer

10 mol

Answer

2 mol

Answer

24 mol

Question 24

Calculate the mass produced, in grams, of carbon dioxide if 1.75 moles of oxygen react completely

Accepted Answer

61.6 g

Answer

66.1 g

Answer

6.16 g

Answer

6.61 g

Question 25

Determine the mass of oxygen gas needed to produce 180.0 grams of water

Accepted Answer

799.3 g

Answer

79.93 g

Answer

7.993 g

Answer

0.7993 g

Question 26

Consider if C2H2 is an empirical formula. What would be the molecular formula if a sample of the compound was found to have a molar mass of 78.114 g/mol?

Accepted Answer

Option D is correct

Answer

CH

Answer

B.

Answer

C.

Question 27

A neutral atom may contain 8 protons,

Accepted Answer

9 neutrons and 8 electrons

Answer

9 neutrons and 10 electrons

Answer

8 neutrons and 10 electrons

Answer

10 neutrons and 9 electrons

Question 28

You can determine the identity of an element if you know how many _____  it has

Accepted Answer

protons

Answer

neutrons

Answer

electrons

Answer

energy levels

Question 29

The nucleus of an atom has all of the following characteristics EXCEPT that it

Accepted Answer

contains nearly all the atom's volume

Answer

is positively charged

Answer

is very dense

Answer

contains nearly all the atom's mass

Question 30

An element with 5 protons, 6 neutrons, and 8 electrons has an atomic number of ____?

Accepted Answer

5

Answer

6

Answer

8

Answer

11

Question 31

An element with 5 protons, 6 neutrons, and 8 electrons has a mass number of ____?

Accepted Answer

11

Answer

5

Answer

6

Answer

8

Question 32

How many valence electrons does an atom of magnesium typically have?

Accepted Answer

2

Answer

3

Answer

12

Answer

24

Question 33

How many valence electrons does an atom of aluminum typically have?

Accepted Answer

3

Answer

2

Answer

13

Answer

27

Question 34

The number of energy levels an atom will have is based on the number of ______it has.

Accepted Answer

electrons

Answer

protons

Answer

neutrons

Answer

quarks

Question 35

Which of the following would NOT be found in the nucleus of an atom?

Accepted Answer

electrons

Answer

protons

Answer

neutrons

Answer

quarks

Question 36

Which statement about the arrangement of the periodic table is not true?

Accepted Answer

Metals are found on the right side of the periodic table.

Answer

Noble gases are on the right side of the periodic table.

Answer

Halogens are on the right side of the periodic table.

Answer

Transition metals are in the center of the periodic table.

Question 37

What kind of charge does an ion have?

Accepted Answer

can be positive or negative

Answer

positive

Answer

negative

Answer

neutral

Question 38

An atom is electrically neutral when its

Accepted Answer

numbers of protons and electrons are equal.

Answer

neutrons balance the protons and electrons.

Answer

nuclear forces stabilize the charges.

Answer

numbers of protons and neutrons are equal.

Question 39

Which statement about the relationship between viscosity and intermolecular forces is true?

Accepted Answer

The stronger the intermolecular forces, the higher the viscosity.

Answer

The stronger the intermolecular forces, the less resistant the fluid is to movement

Answer

The stronger the intermolecular forces, the lower the viscosity

Question 40

Which of the following bonds would not be considered a type of intramolecular bond?

Accepted Answer

hydrogen

Answer

covalent

Answer

ionic

Answer

metallic

Question 41

Molecules that are symmetrical tend to be _____. Molecules that are asymmetrical tend to be ______.

Accepted Answer

nonpolar; polar

Answer

polar; nonpolar

Answer

nonpolar; nonpolar

Answer

polar; polar

Question 42

Which intermolecular force is responsible for the high surface tension of water?

Accepted Answer

Hydrogen bonds

Answer

London dispersion forces

Answer

Covalent bonds

Answer

Dipole-dipole forces

Question 43

Which intermolecular force is the strongest?

Accepted Answer

Hydrogen bonds

Answer

London dispersion forces

Answer

Covalent bonds

Answer

Dipole-dipole forces

Question 44

Which intermolecular force is the weakest?

Accepted Answer

London dispersion forces

Answer

Hydrogen bonds

Answer

Covalent bonds

Answer

Dipole-dipole forces

Question 45

What is the only type of intermolecular force that would have an impact on noble gases?

Accepted Answer

London dispersion forces

Answer

Hydrogen bonds

Answer

Covalent bonds

Answer

Dipole-dipole forces

Question 46

Identify the molecular shape for a diatomic element like

Accepted Answer

linear

Answer

bent

Answer

triagonal planar

Answer

tetrahedral

Question 47

Identify the molecular shape for an element with 3 electron domains

Accepted Answer

triagonal planar

Answer

linear

Answer

bent

Answer

tetrahedral

Question 48

Identify the molecular shape for a molecule with two bonding pairs and two lone pairs of electrons

Accepted Answer

bent

Answer

linear

Answer

triagonal planar

Answer

tetrahedral

Question 49

Question 49.

Accepted Answer

London dispersion forces

Answer

Hydrogen bonds

Answer

Covalent bonds

Answer

Dipole-dipole forces

Question 50

The most dominant intermolecular force at work between two HBr molecules would be

Accepted Answer

Dipole-dipole forces

Answer

London dispersion forces

Answer

Hydrogen bonds

Answer

Covalent bonds

Question 51

The most dominant intermolecular force at work between two water molecules would be

Accepted Answer

Hydrogen bonds

Answer

London dispersion forces

Answer

Covalent bonds

Answer

Dipole-dipole forces

Question 52

Identify the element with the following electron configuration:

Accepted Answer

C

Answer

Be

Answer

Si

Answer

F

Question 53

Identify the total amount of electrons in an element with this electron configuration:

Accepted Answer

15

Answer

3

Answer

5

Answer

11

Question 54

Identify the number of valence electrons in an element with this electron configuration:

Accepted Answer

5

Answer

3

Answer

11

Answer

15

Question 55

Which of the following statements is true about anions?

Accepted Answer

Typically nonmetals

Answer

Typically metals

Answer

Tend to share electrons

Answer

Tend to have positive charge

Question 56

Metals will ____ in reactivity as you move down and left in the periodic table.  Nonmetals will  ____ in reactivity as you move up and right

Accepted Answer

increase; increase

Answer

decrease; increase

Answer

increase; decrease

Answer

decrease; decrease

Question 57

Identify the element with the following electron configuration:

Accepted Answer

As

Answer

K

Answer

N

Answer

Ge

Question 58

Consider the periodic trend seen for ionic radius.  Atoms that lose electrons tend to become _____.  Atoms that gain electrons tend to become _____

Accepted Answer

smaller; larger

Answer

smaller; smaller

Answer

larger; smaller

Answer

larger; larger

Question 59

Which of the following groups of elements would most likely have the greatest electronegativity?

Accepted Answer

Halogens

Answer

Alkali metals

Answer

Alkaline earth metals

Answer

Transition metals

Question 60

Which of the following groups of elements would most likely have the least electronegativity?

Accepted Answer

Alkali metals

Answer

Halogens

Answer

Alkaline earth metals

Answer

Transition metals

Question 61

Two atoms have a difference in electronegativity of 2.34.  What type of bond will they most likely form?

Accepted Answer

ionic

Answer

covalent

Answer

polar covalent

Answer

they will not form a bond

Question 62

Two atoms have a difference in electronegativity of 0.  What type of bond will they most likely form?

Accepted Answer

covalent

Answer

polar covalent

Answer

ionic

Answer

they will not form a bond

Question 63

The energy required to remove one electron from a neutral atom of an element is known as

Accepted Answer

ionization energy

Answer

electronegativity

Answer

reactivity

Answer

quantum energy

Question 64

Which of the following would NOT be considered an electron domain?

Accepted Answer

Central atom

Answer

Electrons shared in a bond

Answer

Lone pairs

Answer

Double bond

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