Matter and Its Properties: A Comprehensive Guide for Chemistry Students

Question 1

Which of the following is a physical property of matter that describes its resistance to flow?

Accepted Answer

Viscosity

Answer

Density

Answer

Flammability

Answer

Acidity

Question 2

Which state of matter has a definite volume but takes the shape of its container?

Accepted Answer

Liquid

Answer

Solid

Answer

Gas

Answer

Plasma

Question 3

Which of the following is a homogeneous mixture?

Accepted Answer

A solution of salt and water

Answer

A mixture of sand and water

Answer

A mixture of oil and vinegar

Answer

A mixture of granite and sand

Question 4

Which of the following is NOT a characteristic of a chemical change?

Accepted Answer

Reversibility

Answer

Formation of a new substance

Answer

Change in physical appearance

Answer

Release or absorption of energy

Question 5

What type of matter has a fixed volume and a fixed shape?

Accepted Answer

Solid

Answer

Liquid

Answer

Gas

Answer

Plasma

Question 6

What is the process by which a liquid changes into a gas called?

Accepted Answer

Evaporation

Answer

Condensation

Answer

Sublimation

Answer

Deposition

Question 7

Which of the following is a physical property of matter?

Accepted Answer

Density

Answer

Flammability

Answer

Reactivity

Answer

Taste

Question 8

What is the process in which a liquid turns into a gas called?

Accepted Answer

Evaporation

Answer

Condensation

Answer

Melting

Answer

Freezing

Question 9

What is the SI unit for temperature?

Accepted Answer

Kelvin

Answer

Celsius

Answer

Fahrenheit

Answer

Rankine

Question 10

Which of these elements is a noble gas?

Accepted Answer

Neon

Answer

Hydrogen

Answer

Oxygen

Answer

Chlorine

Question 11

What is the chemical formula for water?

Accepted Answer

H2O

Answer

CO2

Answer

NaCl

Answer

NH3

Question 12

Which of the following is a strong acid?

Accepted Answer

Hydrochloric acid

Answer

Acetic acid

Answer

Carbonic acid

Answer

Citric acid

Question 13

What is the molar mass of sodium chloride (NaCl)?

Accepted Answer

58.5 g/mol

Answer

23 g/mol

Answer

35.5 g/mol

Answer

71 g/mol

Question 14

Which of the following is a redox reaction?

Accepted Answer

Fe + 2HCl → FeCl2 + H2

Answer

2H2 + O2 → 2H2O

Answer

AgNO3 + NaCl → AgCl + NaNO3

Answer

NaOH + HCl → NaCl + H2O

Question 15

Which state of matter has a definite shape and volume, and its particles are tightly packed?

Accepted Answer

Solid

Answer

Liquid

Answer

Gas

Answer

Plasma

Question 16

What is the SI unit of temperature, used in scientific measurements?

Accepted Answer

Kelvin

Answer

Fahrenheit

Answer

Celsius

Answer

Rankine

Question 17

Which of the following characteristics is a chemical property of matter?

Accepted Answer

Reactivity

Answer

Color

Answer

Hardness

Answer

Solubility

Question 18

What is the process called when a liquid changes into a gas?

Accepted Answer

Evaporation

Answer

Condensation

Answer

Sublimation

Answer

Freezing

Question 19

Which of the following is considered a homogeneous mixture?

Accepted Answer

Salt water

Answer

Oil and vinegar

Answer

Sand and water

Answer

Wood

Question 20

What is the term for a substance that cannot be broken down into simpler substances by chemical means?

Accepted Answer

Element

Answer

Compound

Answer

Mixture

Answer

Solution

Question 21

Which of the following is a characteristic of a pure substance?

Accepted Answer

Constant composition

Answer

Variable boiling point

Answer

Can be separated by physical means

Answer

Can be decomposed by chemical means

Question 22

What is the SI unit of mass, used in the metric system?

Accepted Answer

Kilogram

Answer

Gram

Answer

Pound

Answer

Ounce

Question 23

Which of the following is a physical property of matter? A property that can be observed without changing the composition of the substance.

Accepted Answer

Density

Answer

Flammability

Answer

Boiling point

Answer

Reactivity

Question 24

Which state of matter has a definite shape and volume, meaning it does not flow and takes the shape of its container?

Accepted Answer

Solid

Answer

Liquid

Answer

Gas

Answer

Plasma

Question 25

What is the process called by which a liquid changes into a gas?

Accepted Answer

Evaporation

Answer

Condensation

Answer

Freezing

Answer

Melting

Question 26

Which of the following is NOT a homogeneous mixture? A homogeneous mixture contains the same composition throughout.

Accepted Answer

Sand in water

Answer

Salt water

Answer

Air

Answer

Steel

Question 27

Which of the following elements is a noble gas? Noble gases are colorless, odorless, and unreactive.

Accepted Answer

Neon

Answer

Hydrogen

Answer

Nitrogen

Answer

Oxygen

Question 28

What is the chemical formula for water?

Accepted Answer

H₂O

Answer

CO₂

Answer

NaCl

Answer

CH₄

Question 29

Which of the following is a chemical change? A chemical change produces a new substance with different properties from the original substance.

Accepted Answer

Burning wood

Answer

Melting ice

Answer

Stirring sugar into water

Answer

Condensing water vapor

Question 30

What is the molar mass of sodium chloride (NaCl)? Molar mass is the mass of one mole of a substance.

Accepted Answer

58.5 g/mol

Answer

23 g/mol

Answer

35.5 g/mol

Answer

71 g/mol

Question 31

Which state of matter has a specific volume and can flow?

Accepted Answer

Liquid

Answer

Plasma

Answer

Gas

Answer

Solid

Question 32

According to the atomic model, which subatomic particle has a negative charge?

Accepted Answer

Electron

Answer

Alpha particle

Answer

Proton

Answer

Neutron

Question 33

Which type of chemical bond is characterized by the electrostatic attraction between ions?

Accepted Answer

Ionic bond

Answer

Hydrogen bond

Answer

Metallic bond

Answer

Covalent bond

Question 34

Which of the following mixtures can be separated by filtration?

Accepted Answer

Sand in water

Answer

Oil in water

Answer

Smoke

Answer

Salt water

Question 35

Which of the following substances is a nonpolar molecule?

Accepted Answer

CH4

Answer

NH3

Answer

H2O

Answer

NaCl

Question 36

What is the empirical formula of a compound that contains 40% carbon and 60% hydrogen by mass?

Accepted Answer

CH2

Answer

CH3

Answer

C2H6

Answer

C2H4

Question 37

Which of the following reactions releases energy?

Accepted Answer

Burning of gasoline

Answer

Dissolving of salt in water

Answer

Condensation of water vapor

Answer

Melting of ice

Question 38

Which of the following is an example of a homogeneous mixture?

Accepted Answer

Salt water

Answer

Sand in water

Answer

Chocolate chip cookie dough

Answer

Oil and vinegar

Question 39

Which of the following is a chemical change?

Accepted Answer

Burning wood

Answer

Melting ice

Answer

Boiling water

Answer

Condensing steam

Question 40

Which of the following is a characteristic property of metals?

Accepted Answer

Electrical conductivity

Answer

Brittleness

Answer

Transparency

Answer

Low density

Question 41

What fundamental physical quantity measures the amount of matter in an object?

Accepted Answer

Mass

Answer

Volume

Answer

Weight

Answer

Density

Question 42

Which of the following is a standard unit of volume?

Accepted Answer

Liter

Answer

Mole

Answer

Gram

Answer

Kelvin

Question 43

Which of the following factors influences the rate of a chemical reaction?

Accepted Answer

Temperature

Answer

Color

Answer

Size

Answer

Shape

Question 44

Which of the following is a law of conservation in chemistry?

Accepted Answer

Law of Conservation of Mass

Answer

Law of Thermodynamics

Answer

Law of Universal Gravitation

Answer

Law of Inertia

Question 45

Which of the following is a physical property of matter that describes its mass per unit volume?

Accepted Answer

Density

Answer

Acidity

Answer

Flammability

Question 46

Which state of matter has no definite volume or shape and can flow?

Accepted Answer

Gas

Answer

Solid

Answer

Plasma

Answer

Liquid

Question 47

Which of the following is a chemical change that involves the formation of new substances?

Accepted Answer

Burning paper

Answer

Dissolving sugar in water

Answer

Melting ice

Answer

Boiling water

Question 48

What is the name of the attractive force that exists between oppositely charged particles?

Accepted Answer

Electrostatic force

Answer

Magnetic force

Answer

Gravitational force

Answer

Chemical bonding

Question 49

Which of the following mixtures is a homogeneous mixture where the components are evenly distributed throughout?

Accepted Answer

Salt water

Answer

Oil in water

Answer

Sand in water

Answer

Ice in water

Question 50

What is the name of the process by which a substance changes directly from a liquid to a gas?

Accepted Answer

Vaporization

Answer

Freezing

Answer

Condensation

Answer

Deposition

Question 51

Which of the following is a characteristic property of metals?

Accepted Answer

High electrical conductivity

Answer

Low density

Answer

Transparency

Answer

Brittleness

Question 52

What is the standard unit of mass in the International System of Units (SI)?

Accepted Answer

Kilogram

Answer

Ounce

Answer

Pound

Answer

Gram

Question 53

Which of the following elements is classified as a nonmetal?

Accepted Answer

Oxygen

Answer

Iron

Answer

Sodium

Answer

Gold

Question 54

What is the term for the smallest indivisible unit of an element that retains its chemical identity?

Accepted Answer

Atom

Answer

Molecule

Answer

Compound

Answer

Ion