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Chemistry Exam

Total questions: 96

Worksheet time: 50mins

Name
Class
Date
1.

In J.J Thomson's experiments the cathode rays became an___

a)

Electron

b)

Ion

c)

Neutron

d)

Proton

2.

Any electrically charged particle is an___.

a)

Electron

b)

Ion

c)

Neutron

d)

Proton

3.

The base unit for volume in the metric system is a___.

a)

Ampere

b)

Kelvin

c)

Liter

d)

Mole

4.

What is the correct symbol for silver?

a)

Ag

b)

Al

c)

Ar

d)

Au

5.

What is Avogadro’s number for anything?

a)

6.022 × 10²³

b)

Gram

c)

Liter

d)

Mole

6.

The height of a wave is___.

a)

Amplitude

b)

Density

c)

Frequency

d)

Hertz

7.

What is the correct order of symbols in a subshell of an atom?

(a)  

8.

The study of compositions in properties in matter is___

a)

Astronomy

b)

Chemistry

c)

Geography

d)

Physics

9.

A bottle of powerade will follow in what domain of chemistry?

a)

Hygroscopic

b)

Macroscopic

c)

Megascopic

d)

Microscopic

10.

What is composed of two or more atoms that can found in various amounts and separated by physical change?

a)

Compound

b)

Element

c)

Mixture

11.

Who formulated the five theories of atomic theory?

a)

Amedeo Avogadro

b)

John Dalton

c)

J.J Thomson

d)

Robert Bunsen

12.

Losing electrons is___

a)

Combination

b)

Oxidation

c)

Redoxation

d)

Reduction

13.

What two things produced in a combustion reaction?

a)

  1. Carbon dioxide and water 

b)

  1. Nitrogen and oxygen

c)

Salt and water 

d)

Boron and carbon

14.

A device used to measure the amount of heat absorbed or released is___

a)

Anemometer

b)

Barometer

c)

Calorimeter

d)

Thermometer

15.

A chemical reaction that absorbs heat is___

a)

Endothermic

b)

Exothermic

16.

Energy of motion is___

a)

Kinetic

b)

Mechanical

c)

Potential

d)

Radiant

17.

The area of science that deals with the relationship of work is___

a)

Cosmology

b)

Physics

c)

Thermodynamics

d)

Quantum Mechanics

18.

What is a chemical reaction where Δ H is negative?

a)

Combustion

b)

Endothermic

c)

Exothermic

d)

Redox

19.

How do you find Δ T?

(a)  

20.

What element that contains diamond and graphite?

a)

Agron

b)

Carbon

c)

Lithium

d)

Silicon

21.

What is an allotrope of  O3?

a)

Boron

b)

Diamond

c)

Ozone

d)

Phosphorus

22.

What element is essential for plant growth and is in fertilizer?

a)

Chlorine

b)

Iron

c)

Nitrogen

d)

Oxygen

23.

What has red and white allotropes?

a)

Boron

b)

Oxygen

c)

Phosphorus

d)

Sulfur

24.

WHat is the most abundant element in the universe?

a)

Carbon

b)

Hydrogen

c)

Nitrogen

d)

Oxygen

25.

Brass and bronze is an allotrope of___.

a)

Boron

b)

Copper

c)

Silicon

d)

Sulfur

26.

Three allotropes protium, deuterium and tritium is what element?

a)

Carbon

b)

Hydrogen

c)

Nitrogen

d)

Tin

27.

A measure of liquids resistance to flow is what?

a)

Density

b)

Density

c)

Pressure

d)

Viscosity

28.

Changing from a liquid to a gas is___.

a)

Condensation

b)

Freezing

c)

Sublimation

d)

Vaporization

29.

What is the capacity to supply heat or do work?

a)

Energy

b)

Force

c)

Momentum

d)

Power

30.

What is the thing we are studying in a reaction?

a)

Catalysts

b)

Pressure

c)

Rate

d)

System

31.

What are two things in a neutralization reaction?

a)

Acid and base

b)

Metal and non-metal

c)

Products and reactants

d)

Salt and water

32.

Si unit of pressure

a)

Kilograms (kg)

b)

Meters (m)

c)

Newtons (N)

d)

Pascals (Pa)

33.

Device used to measure atmospheric pressure

a)

Barometer

b)

Hygrometer

c)

Wind vane

d)

Mercury thermometer

34.

What reaction occurs when A+b →Ab?

a)

Combination reaction

b)

Decomposition reaction

c)

Double displacement reaction

d)

Single displacement reaction

35.

Oxidation number of free elements is___

a)

0

b)

7

c)

25

d)

57

36.

When balancing a chemical reaction what must be changed?

a)

Coefficients

b)

Formulas

c)

Molecular weights

d)

Subscripts

37.

A reaction involving change in oxidation numbers from one or more is a___.

a)

Acid-base reaction

b)

Endothermic reaction

c)

Precipitation reaction

d)

Redox reaction

38.

A reaction that produces one or more insoluble reactions is a___?

a)

Acid-base reaction

b)

Endothermic reaction

c)

Precipitation reaction

d)

Redox reaction

39.

Substance that produces OH in water is a___.

a)

Acid

b)

Base

c)

Neutral

d)

Salt

40.

An acid that dissolves completely in water to yield hydronium is___.

a)

Strong acid

b)

Strong base

c)

Weak base

d)

Weak acid

41.

What is the process of adding solvent to solution lower the concentration of solute?

a)

Concentration

b)

Condensation

c)

Dilution

d)

Evaporation

42.

What law states what is fundamentally impossible to determine simultaneously?

a)

Boyle's Law

b)

Newton's First Law

c)

Ohm's Law

d)

Heisenberg's Uncertainty Principle

43.

What no two electrons in the same atom can have the same quantum number?

a)

Bohr's Rule

b)

Heisenberg Uncertainty Principle

c)

Hund's Rule

d)

Pauli Exclusion Number

44.

What electrons enter higher subshells after higher levels have been filled?

a)

Aufbau's principle

b)

Bohr's model

c)

Hund's rule

d)

Pauli exclusion principle

45.

What is the subshell or shape of orbital?

a)

Angular momentum

b)

Magnetic momentum

c)

Spinning momentum

d)

Quantum number

46.

What is the direction of the spinning of the electron?

a)

Angular momentum

b)

Magnetic momentum

c)

Spinning momentum

d)

Quantum number

47.

What is the orientation of the orbital?

a)

Angular momentum

b)

Magnetic momentum

c)

Spinning momentum

d)

Quantum number

48.

What is the shell or general region of the value of principal?

a)

Angular momentum

b)

Magnetic momentum

c)

Spinning momentum

d)

Quantum number

49.

An element with 14 protons and its molecular mass has 29 how many neutrons are there?

a)
13
b)
16
c)
15
d)
17
50.

What has no definite shape but a definite volume?

a)

Gas

b)

Liquid

c)

Plasma

d)

Solid

51.

Transfering is___.

a)

Covalent

b)

Ionic

52.

Formed from the difference of charges___.

a)

Covalent

b)

Ionic

53.

 Forms from a nonmetal and a metal___.

a)

Covalent

b)

Ionic

54.

 Sharing of electrons is___.

a)

Covalent

b)

Ionic

55.

OH is___.

a)

Helium

b)

Hydroxide

c)

Nitrogen

d)

Oxygen

56.

Sodium is an___.

a)

Alkaline metal

b)

Halogen

c)

Metal/Metalloid

d)

Noble gas

57.

Helium is an___.

a)

Alkaline metal

b)

Halogen

c)

Metal/Metalloid

d)

Noble gas

58.

Boron is a semi-___.

a)

Alkaline metal

b)

Halogen

c)

Metal/Metalloid

d)

Noble gas

59.

Who composed the periodic table?

a)

Albert Einstein

b)

Dmitri Mendeleev

c)
Isaac Newton
d)

Marie Curie

60.

Electrons away from the nucleus its energy ___.

a)

Becomes negative

b)
Decreases
c)

Increases

d)

Stays the same

61.

What are electrons occupying the outermost shell?

a)

Core electrons

b)

Neutron electrons

c)

Proton electrons

d)

Valence electrons

62.

What has a negative charge?

a)

Electrons

b)

Neutrons

c)

Protons

63.

What determines the identity?

a)

Electrons

b)

Neutrons

c)

Protons

64.

What is located in the nucleus with a proton?

a)

Electrons

b)

Neutrons

c)

Protons

65.

What is the color of light that is perceived based on particles?

a)

Energy

b)

Frequency

c)

Speed

d)

Wavelength

66.

What is the solution in the component present in a concentration less than that of a solvent?

a)

Saturation

b)

Solution

c)

Solute

d)

Solvent

67.

Unit of moles of solute over liters of solution

a)
Molarity
b)
Molar volume
c)
Molar mass
d)
Molar concentration
68.

Solution where water is the solvent

a)

Aqueous solution

b)

Condensation solution

c)

Hydration solution

d)

Oxidation solution

69.

A substance that produces OH when dissolved in water

a)

Acidic

b)
Base
c)
Neutral
70.

Substance that produces H3O when dissolved in water

a)

Acidic

b)
Base
c)
Neutral
71.

What is the number in front of the symbol in a chemistry equation?

a)
Atomic number
b)

Coefficient

c)
Molar mass
d)

Subscription

72.

Energy of position

a)

Kinetic energy

b)
Mechanical energy
c)

Potential energy

d)

Thermal energy

73.

Heat naturally flows from (a)   .

74.

The greatest source of energy

a)

Coal

b)

The sun

c)

Water

d)

Wind

75.

Is it possible for an object to possess potential and kinetic energy?

a)

True

b)

False

76.

An increase in temperature results in kinetic energy?

a)

True

b)

False

77.

Most abundant element in the earth's crust

a)

Carbon

b)

Hydrogen

c)
Silicon
d)

Oxygen

78.

Group of elements that are most likely to be found in their unconfined states

a)

Alkali metals

b)

Halogens

c)

Noble gases

d)

Transition metals

79.

Blast furnace are used to extract (a)   .

80.

Byproduct of photosynthesis

a)

Carbon dioxide

b)

Hydrogen

c)

Nitrogen

d)

Oxygen

81.

What is mixed with hydrogen to produce ammonium?

a)

Carbon

b)
Helium
c)

Nitrogen

d)

Oxygen

82.

Element used as an laxative

a)

Calcium

b)

Carbonate

c)

Magnesium

d)

Potassium

83.

Element found in almost all plastics

a)

Carbon

b)

Chlorine

c)

Hydrogen

d)

Nitrogen

84.

Used in the purification of water

a)

Chlorine

b)
Mercury
c)
Oxygen
d)

Sodium

85.

Used to make in x-ray tube

a)

Aluminum

b)

Beryllium

c)

Carbon

d)

Lead

86.

Temperature at which a liquids vapor pressure equals one atmosphere

a)

Boiling point

b)

Condensation point

c)

Freezing point

d)

Evaporation

87.

Changing from a gas to a solid

a)

Condensation

b)
Deposition
c)

Freezing

d)

Sublimation

88.

Changing from a gas to a liquid

a)

Condensation

b)
Deposition
c)

Freezing

d)

Sublimation

89.

Changing from a liquid to a solid

a)

Condensation

b)
Deposition
c)

Freezing

d)

Sublimation

90.

Changing from a solid directly to a gas

a)

Condensation

b)
Deposition
c)

Freezing

d)

Sublimation

91.

Predominant intermolecular force in hydrochloric acid

a)

Dipole-dipole interactions

b)

Covalent bonding

c)

Ionic bonding

d)

London dispersion forces

92.

The predominant force of H2

a)

Dipole-dipole interactions

b)

Covalent bonding

c)

Ionic bonding

d)

London dispersion forces

93.

Two liquids that do not mix

a)

Compatible

b)

Immiscible

c)

Miscible

d)

Soluble

94.

Δ S

a)

Energy.

b)

Enthalpy

c)

Entropy.

d)

Temperature.

95.

Gibbs free energy

a)

ΔG

b)

ΔH

c)

ΔS

d)

ΔT

96.

Highest entropy to lowest

a)

Gas > Liquid > Solid

b)

Gas > Solid > Liquid

c)

Liquid > Solid > Gas

d)

Solid > Gas > Liquid

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