Matter: Properties, States, and Chemistry for Eleventh Grade Science

Question 1

Which of the following statements best describes the nature of matter?

Accepted Answer

Matter takes up space and has mass.

Answer

Matter can be created or destroyed.

Answer

Matter can only exist in one state at a time.

Answer

Matter is always visible to the human eye.

Question 2

Which of the following is NOT a fundamental property of matter?

Accepted Answer

Color

Answer

Mass

Answer

Volume

Answer

Density

Question 3

Which state of matter possesses a definite shape and volume?

Accepted Answer

Solid

Answer

Liquid

Answer

Gas

Answer

Plasma

Question 4

A substance that cannot be chemically broken down into simpler substances is known as a:

Accepted Answer

Element

Answer

Compound

Answer

Mixture

Answer

Solution

Question 5

The mass of an object is a measure of its:

Accepted Answer

Inertia

Answer

Volume

Answer

Density

Answer

Solubility

Question 6

A homogeneous mixture is one in which:

Accepted Answer

The composition is uniform throughout

Answer

Different components can be easily distinguished

Answer

The mixture separates into layers over time

Answer

The mixture is cloudy or opaque

Question 7

When a solid undergoes a change into a liquid, it is known as:

Accepted Answer

Melting

Answer

Vaporization

Answer

Condensation

Answer

Sublimation

Question 8

The chemical formula for water, the compound essential for life, is:

Accepted Answer

H2O

Answer

NaCl

Answer

CO2

Answer

CH4

Question 9

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

Accepted Answer

Evaporation

Answer

Condensation

Answer

Sublimation

Answer

Deposition

Question 10

Which of the following has the highest density?

Accepted Answer

Iron

Answer

Water

Answer

Air

Answer

Hydrogen

Question 11

What is the chemical formula for dihydrogen monoxide?

Accepted Answer

H2O

Answer

CH4

Answer

NaCl

Answer

CO2

Question 12

Which of the following is a compound?

Accepted Answer

Carbon dioxide

Answer

Oxygen

Answer

Sodium

Answer

Iron

Question 13

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

Accepted Answer

Atom

Answer

Molecule

Answer

Ion

Answer

Neutron

Question 14

Which of the following represents a chemical reaction?

Accepted Answer

Dissolving salt in water

Answer

Melting ice

Answer

Boiling water

Answer

Crushing a can

Question 15

What is the Law of Conservation of Mass?

Accepted Answer

Mass cannot be created or destroyed in a chemical reaction.

Answer

Energy cannot be created or destroyed in a chemical reaction.

Answer

Volume cannot be created or destroyed in a chemical reaction.

Answer

Density cannot be created or destroyed in a chemical reaction.

Question 16

Which state of matter has a definite volume and a definite shape?

Accepted Answer

Solid

Answer

Liquid

Answer

Gas

Answer

Plasma

Question 17

According to which law, the total mass of reactants in a chemical reaction is equal to the total mass of products?

Accepted Answer

Law of Conservation of Mass

Answer

Law of Definite Proportions

Answer

Law of Multiple Proportions

Answer

Gay-Lussac's Law

Question 18

Which element is represented by the chemical symbol Fe?

Accepted Answer

Iron

Answer

Copper

Answer

Aluminum

Answer

Gold

Question 19

Which type of chemical bond results from the sharing of electrons between atoms?

Accepted Answer

Covalent bond

Answer

Ionic bond

Answer

Metallic bond

Answer

Hydrogen bond

Question 20

Which of the following is NOT a type of intermolecular force?

Accepted Answer

Metallic bonding

Answer

Hydrogen bonding

Answer

Dipole-dipole interactions

Answer

London dispersion forces

Question 21

Which isotope of carbon is radioactive?

Accepted Answer

Carbon-14

Answer

Carbon-12

Answer

Carbon-13

Answer

Carbon-15

Question 22

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

Accepted Answer

Irreversibility

Answer

Formation of a new substance with different properties than the reactants

Answer

Energy changes, either as heat released (exothermic) or heat absorbed (endothermic)

Question 23

A sealed container holds 10 grams of water. If the container is heated and then cooled back to its original temperature, what will happen to the mass of the water?

Accepted Answer

Stay the same

Answer

Increase

Answer

Decrease

Answer

Change to the container's mass

Question 24

Identify which property is a physical property of matter.

Accepted Answer

Density

Answer

Flammability

Answer

Reactivity

Answer

Toxicity

Question 25

What is the term for the fundamental unit of an element that retains its chemical characteristics?

Accepted Answer

Atom

Answer

Molecule

Answer

Ion

Answer

Compound

Question 26

Which of the following is an example of a chemical change?

Accepted Answer

Burning paper

Answer

Melting ice

Answer

Dissolving sugar in water

Answer

Condensing water vapor

Question 27

Explain the distinction between a homogeneous and a heterogeneous mixture.

Accepted Answer

A homogeneous mixture has a uniform composition throughout, unlike a heterogeneous mixture.

Answer

A heterogeneous mixture has a uniform composition throughout, unlike a homogeneous mixture.

Answer

Both homogeneous and heterogeneous mixtures have a uniform composition throughout.

Answer

Neither homogeneous nor heterogeneous mixtures have a uniform composition throughout.

Question 28

Identify the process by which a solid directly transforms into a gas.

Accepted Answer

Sublimation

Answer

Deposition

Answer

Condensation

Answer

Evaporation

Question 29

Identify the force responsible for holding atoms together within a molecule.

Accepted Answer

Covalent bond

Answer

Ionic bond

Answer

Hydrogen bond

Answer

van der Waals force

Question 30

Imagine zooming in on a tiny piece of matter. What's happening with the particles inside?

Accepted Answer

They're always moving and bumping into each other.

Answer

They're tiny and can't be broken down.

Answer

They're perfectly lined up in a neat pattern.

Question 31

Which property is essential in characterizing matter?

Accepted Answer

Mass

Answer

Volume

Answer

Shape

Answer

Color

Question 32

In the International System of Units (SI), the standard unit for measuring mass is the:

Accepted Answer

Kilogram

Answer

Gram

Answer

Pound

Answer

Ounce

Question 33

Which of the following is not a recognized state of matter?

Accepted Answer

Quark-gluon plasma

Answer

Solid

Answer

Liquid

Answer

Gas

Question 34

The process by which a solid directly transforms into a gas is called:

Accepted Answer

Sublimation

Answer

Evaporation

Answer

Condensation

Answer

Freezing

Question 35

A neutral solution has a pH of:

Accepted Answer

7

Answer

0

Answer

14

Answer

21

Question 36

Which of the following compounds is an example of a covalent compound?

Accepted Answer

Water

Answer

Sodium chloride

Answer

Carbon dioxide

Answer

Potassium hydroxide

Question 37

Which property of matter refers to its ability to conduct electricity?

Accepted Answer

conductivity

Answer

flammability

Answer

malleability

Answer

hardness

Question 38

A substance composed of atoms of only one element is called a:

Accepted Answer

element

Answer

molecule

Answer

compound

Answer

solution

Question 39

The process by which a liquid transforms into a gas is known as:

Accepted Answer

evaporation

Answer

freezing

Answer

melting

Answer

condensation

Question 40

Which substance has the greatest density?

Accepted Answer

iron

Answer

water

Answer

oil

Answer

air

Question 41

Which of the following is **not** a fundamental property of matter?

Accepted Answer

Beauty

Answer

Volume

Answer

Density

Answer

Mass

Question 42

What is the SI unit of mass?

Accepted Answer

Kilogram (kg)

Answer

Gram (g)

Answer

Pound (lb)

Answer

Ounce (oz)

Question 43

Which state of matter has a **definite** volume and shape?

Accepted Answer

Solid

Answer

Liquid

Answer

Gas

Answer

Plasma

Question 44

What process causes a substance to transform from a liquid to a gas?

Accepted Answer

Boiling

Answer

Sublimation

Answer

Condensation

Answer

Freezing

Question 45

Which of the following is an example of a chemical change?

Accepted Answer

Burning of wood

Answer

Condensation of water vapor

Answer

Melting of ice

Answer

Dissolving sugar in water

Question 46

Which of the following elements is classified as a noble gas?

Accepted Answer

Helium

Answer

Iron

Answer

Chlorine

Answer

Sodium

Question 47

What is the chemical formula for water?

Accepted Answer

H2O

Answer

HCl

Answer

CO2

Answer

NH3

Question 48

Which of the following is a common type of chemical reaction that involves the formation of an insoluble solid?

Accepted Answer

Precipitation reaction

Answer

Redox reaction

Answer

Combustion reaction

Answer

Nuclear reaction

Question 49

What is the pH of a neutral solution?

Accepted Answer

7

Answer

-7

Answer

0

Answer

14

Question 50

Which of the following is NOT a characteristic of matter?

Accepted Answer

It is always visible to the naked eye.

Answer

It occupies space.

Answer

It has mass.

Answer

It can exist in different states.

Question 51

What is the main difference between a solid and a liquid?

Accepted Answer

Solids have a fixed shape and volume, while liquids have a fixed volume but take the shape of their container.

Answer

Solids are made of atoms, while liquids are made of molecules.

Answer

Liquids are always more dense than solids.

Answer

Solids are always colder than liquids.

Question 52

If you compress a sample of gas into a smaller container, what happens to its density?

Accepted Answer

The density increases.

Answer

The density cannot be determined from the information provided.

Answer

The density decreases.

Answer

The density remains the same.

Question 53

Which of the following is an example of a physical change?

Accepted Answer

Melting ice.

Answer

Rusting iron.

Answer

Burning wood.

Answer

Baking a cake.

Question 54

What is the smallest particle of an element that retains the chemical properties of that element?

Accepted Answer

Atom

Answer

Mixture

Answer

Molecule

Answer

Compound

Question 55

A substance has a fixed composition and cannot be broken down into simpler substances by physical means. What is this substance called?

Accepted Answer

Element

Answer

Mixture

Answer

Compound

Question 56

Which of the following is NOT a property of a pure substance?

Accepted Answer

It can be separated into simpler substances by physical means.

Answer

It is a single type of matter.

Answer

It has unique physical and chemical properties.

Answer

It has a fixed composition.

Question 57

A solution is a homogeneous mixture. What does 'homogeneous' mean in this context?

Accepted Answer

The components are evenly distributed throughout the mixture.

Answer

The components are not evenly distributed throughout the mixture.

Answer

The components are chemically bonded together.

Answer

The components are visible to the naked eye.

Question 58

If you heat a sample of water until it boils and evaporates, what happens to its mass?

Accepted Answer

The mass remains the same.

Answer

The mass cannot be determined from the information provided.

Answer

The mass decreases.

Answer

The mass increases.

Question 59

You have a mixture of sand and iron filings. Which separation technique would be most effective to separate them?

Accepted Answer

Using a magnet to remove the iron filings.

Answer

Distillation.

Answer

Filtering the mixture.

Answer

Evaporation.