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Experience Chemistry Semester 1 Final Exam Practice

Total questions: 75

Worksheet time: 53mins

Name
Class
Date
1.

The study of the composition, structure, and properties of matter; the processes that matter undergoes, and the energy changes that accompany those processes best describes the science of

a)

Biology

b)

Chemistry

c)

Physics

d)

astronomy

2.

The molecule BrO3has which molecular geometry?

a)

trigonal pyramidal

b)

trigonal planar

c)

tetrahedral

d)

Linear

3.

When working in the Flame Test lab, which statement was true?

a)

every element burned with the same color

b)

each element could be put on the wire without having previously cleaned it

c)

every color was found-red, orange, green, blue, purple, white, brown, and black

d)

the copper wire had to be rinsed with HCl between samples

4.

The melting points of ionic compounds are higher than the melting points of molecular compounds because

a)

ionic substances tend to vaporize at room temperature

b)

ionic substances are brittle

c)

attractive forces between ions are greater than the attractive forces between molecules

d)

the numbers of positive and negative charges are equal in an ionic compound

5.

Which is the correct attire for lab work?

a)

Flip Flops

b)

Loose Hair

c)

Contact Lenses

d)

Safety Goggles

6.

The branch of science that deals with substances containing carbon is called

a)

physical chemistry

b)

analytical chemistry

c)

organic chemistry

d)

biochemistry

7.

A covalent bond is formed when two atoms

a)

share a nucleus with one another

b)

share one or more pairs of electrons with each other

c)

gain electrons

d)

loose electrons

8.

A change in a substance that does not involve a change in the identity of the substance is called a(n)

a)

chemical change

b)

physical change

c)

extensive property

d)

intensive property

9.

Which type of bonding is characterized by overlapping orbitals that allow outer electrons of atoms to move about freely throughout the entire compound?

a)

ionic

b)

Covalent

c)

Metallic

d)

Multiple

10.

An ionic bond results from the electrical attraction between

a)

Cations & Anions

b)

Atoms

c)

Dipoles

d)

Orbitals

11.

An atom of Fluorine has 9 protons and 10 neutrons. Its mass number is

a)

9

b)

10

c)

1

d)

19

12.

The principle that states that atoms tend to form compounds in which each atom has eight electrons in its highest occupied energy level is called the

a)

rule of eights

b)

configuration rule

c)

Avogadro principle

d)

octet rule

13.

Which intermolecular force is a force that involves a hydrogen atom and atoms of other elements?

a)

London dispersion

b)

hydrogen bond

c)

dipole

d)

polar

14.

The orbital notation below represents the ground state of which element?                                  ↑↓     ↑↓    ↑↓    ↑↓    ↑↓    ↑↓  

                                                 1s    2s   2p    2p     2p    3s

a)

Mg

b)

Na

c)

C

d)

Ca

15.

Mendeleev organized his periodic table based on chemical properties and

a)

symbols

b)

atomic mass

c)

atomic numbers

d)

charges

16.

Which element is NOT in its correct block?

a)

Strontium, s-block

b)

Krypton, p-block

c)

Chromium, f-block

d)

Iron, d-block

17.

The electron configurations of main-group elements end in

a)

d and f

b)

 s and p

c)

s and d

d)

p and d

18.

Which periodic group or family is NOT correctly matched with its common family name?

a)

Group 2: alkaline-earth metals

b)

Group 3: alkali metals

c)

Group 17: halogens

d)

Group 18: noble gases

19.

The average atomic mass of an element is 150.36. While doing a chemistry experiment, you calculate the molar mass to be 149.68. What is your percent error?

a)

0.0045%

b)

0.45%

c)

-0.0045%

d)

-0.45%

20.

A long Repeating chain of molecules is a

a)

Colloid

b)

Suspension

c)

Polymer

d)

Alloy

21.

This is a combination of two or more atoms

a)

an element

b)

a molecule

c)

a system

d)

a surrounding

22.

This is a portion of the universe that a scientist studies

a)

an element

b)

a molecule

c)

a system

d)

a surrounding

23.

This philosopher was the first to come up with the idea of the atom

a)

Dalton

b)

Democritus

c)

Aristotle

24.

Find the element with the atomic number of 8

a)

Oxygen

b)

Sulfur

c)

Beryllium

d)

Lithium

25.

Find the element with 16 electrons

a)

Oxygen

b)

Sulfur

c)

Beryllium

d)

Lithium

26.

How many protons does Fluorine have

(a)  

27.

How many Protons are in Chlorine-37

(a)  

28.

How many electrons are in Chlorine-37

(a)  

29.

How many neutrons are in Chlorine-37

(a)  

30.

All matter has ___ and occupies space

a)

mass

b)

particle

c)

element

d)

molecule

31.

What 2000 mm equal to in meters?

(a)  

32.

What is the lowest possible energy level that an electron can occupy?

a)

Excited state

b)

Fundamental state

c)

Ground state

d)

Outermost state

33.

"The amount of energy required to jump an electron from one energy level to another" is known as what?

a)

Electron excitement

b)

Quantum

c)

Spectral energy

d)

Isotopic power

34.

Where does the Kinetic Energy of a Molecule Come from?

a)

The Strength of the bonds in a molecule

b)

the shape of the molecule

c)

The Motion of a Molecule

d)

The Number of atoms in a molecule

35.

Standard Temperature and pressure (STP) are what conditions?

a)

32° F and 10 kPa

b)

0° C and 10 atm

c)

32 °C and 1 atm

d)

0 ° C and 1 atm

36.

Pressure is equal to

a)

forcearea\frac{force}{area}

b)

force × areaforce\ \times\ area

c)

1 areaforce\sqrt[force]{area}

d)

(force + area)/2

37.

If the particles in a sample of matter are attracted to each other but can move past each other easily, the matter is a

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

38.

Based on the phase diagram shown, the kinetic energy of the particles is changing in which of the segments?

a)

A, C, E

b)

B, D

c)

B, C, D

d)

In all the segments

39.

In the absence of any external forces, the shape of a drop of water is determined by which of the following?

a)

Density

b)

Viscosity

c)

Surface Tension

d)

Boiling Point

40.

The strength of hydrogen bonds in water (H2O) is greater than those in ammonia (NH3) which is greater than the strength of the hydrogen bond in hydrogen fluoride (HF). Which of the compounds will have the highest boiling point.

a)

Water

b)

Ammonia

c)

Hydrogen Flouride

d)

They will all have he same boiling point

41.

Which of the following is an example of a Solution?

a)

A bag of trail mix

b)

A bottle of Salt Water

c)

A bowl of Fruit Salad

d)

A chocolate chip cookie

42.

PSI, torr, mmHG, atm all are units for....

a)

Temperature

b)

Force

c)

Pressure

d)

Area

43.

Which of the following defines an ionic bond?

a)

a metal bonded to a nonmetal

b)

a nonmetal bonded to a nonmetal

c)

Any compound containing carbon

d)

any compound containing sodium

44.

This type of Solids contains materials such as plastics and glass

a)

Crystalline Network Solids

b)

Amorphous Solids

c)

Breakable Solids

d)

Molding Solids

45.

If the amount of dissolved solute in a solution at a given temperature is greater than the amount that can permanently remain in solution at that temperature, the solution is said to be

a)

Saturated

b)

Unsaturated

c)

Supersaturated

d)

DIluted

46.

To conduct electricity, a solution must contain

a)

nonpolar molecules.

b)

polar molecules.

c)

Nonelectrolytes

d)

electrolytes

47.

A mixture that appears to be uniform while being stirred but separates into different phases when agitation ceases is a

a)

Solvent

b)

Suspension

c)

Colloid

d)

Solute

48.

A long Repeating chain of molecules is a

a)

Colloid

b)

Suspension

c)

Polymer

d)

Alloy

49.

Match the changes in state to their name

a)

Solid to Gas

1.

Sublimation

b)

Gas to Solid

2.

Deposition

c)

Liquid to Gas

3.

Vaporization

d)

Gas to Liquid

4.

Condensation

e)

Liquid to Solid

5.

Freezing

50.

1,976 torr is how many atmospheres? (atm)

(a)  

51.

A container has a pressure 233 kPa  in it. What is the atmospheric pressure?

(a)  

52.

Convert 540 mmHg to kPa

a)

71.976 kPa

b)

72 kPa

c)

4051 kPa

d)

4100 kPa

53.

Convert 242 kPa to atm

a)

2.4 atm

b)

2.39 atm

c)

24500 atm

d)

24515 atm

54.

Complete the following sentence: 

"The finer the size of the grain, the _____________the solute dissolves."

a)

slower

b)

faster

c)

more time

d)

the same time

55.

The substance able to dissolve in a liquid is called the...

a)

solution

b)

solvent

c)

solute

d)

soluble

56.

Grandma wants to drink a cup of sweet tea. Which way is the fastest to dissolve sugar in water?

a)

Add sugar to hot cup of tea.

b)

Add sugar to a hot cup of tea and stir.

c)

Add brown sugar to a cold cup of tea.

d)

Add sugar to a cold cup of tea.

57.

CO2 gas is more soluble in hot water than in cold water.

a)

True

b)

False

58.

Affects the solubility of gases - Increase air pressure

a)

More soluble

b)

less soluble

c)

no effect

59.

How many grams of K2Cr2O7, are soluble in 100 g of water at 95oC?

a)

83 grams

b)

75 grams

c)

40 grams

d)

12 grams

60.

Match the description to the correct particle motion

a)

The particle moves around an axis

1.

Rotation

b)

The particle stays in one place while moving

2.

Vibration

c)

The particle moves in space

3.

Translation

61.

Match the phase change to it's name

a)

Condensation

1.

Gas → liquid

b)

Vaporization

2.

Liquid → Gas

c)

Melting

3.

Solid → Liquid

d)

Freezing

4.

Liquid → Solid

62.

You can tell a chemical is an ionic compound because it contains a ​ ​ (a)   bonded with a non-metal

Choose from the below words
Metal
Non-Metal
Carbon
Electron
63.

Match the point defect to its description

a)

Interstital

1.

An Extra atom is in a spot it doesn't belong

b)

Substitution

2.

An atom is in the wrong spot

c)

Vacancy

3.

An atom is missing

64.

What do we call the 'skin like' surface on water?

a)

Nervous Tension

b)

Conflict Tension

c)

Surface Tension

d)

Base Tension

65.

Shampoo is a ...

a)

Electrolyte

b)

Solvent

c)

Carbohydrate

d)

Surfactant

66.

the ability of a material to bend or be hammered into other shapes without breaking.

a)

Ductility

b)

Malleability

c)

Toxicity

d)

Solubility

67.

Steel generally speaking is made of

a)

iron and carbon

b)

copper and iron

c)

tin and carbon

d)

aluminum and nickel

68.

Match the point defect to its description

a)

Interstital

1.

An Extra atom is in a spot it doesn't belong

b)

Substitution

2.

An atom is in the wrong spot

c)

Vacancy

3.

An atom is missing

69.

"Chemical compounds tend to form so that each atom has an octet (8) electrons in their highest occupied energy level" is known as what

a)

The Octet Rule

b)

The rule of 8

c)

An Electron Flush

d)

The Balanced Charge Law

70.

When naming an ionic compound, which of the atoms is written first?

a)

The Metal

b)

The Nonmetal

c)

The Anion

d)

The Cation

71.

When an atom loses an electron, it becomes a

a)

positive ion

b)

negative ion

72.

What is the BASE SI Unit for time?

a)

Hours

b)

Parsecs

c)

Seconds

d)

Microts

73.

An atom that has gained or lost an electron is called a(n) _____.

a)

ion

b)

particle

c)

atom

74.

A positive ion is called a

a)

Cation

b)

Anion

75.

Match the following Group Numbers to their ionic Charge

a)

1

1.

+1

b)

2

2.

+2

c)

15

3.

-3

d)

16

4.

-2

e)

17

5.

-1