Matter and Its Classification

What are the two main categories of properties of matter?

• organic properties and inorganic properties

• macroscopic properties and microscopic properties

• solid properties and liquid properties

• physical properties and chemical properties

Which type of change does not alter the chemical composition of a substance?

• Chemical change

• Physical change

• Biological change

• Mechanical change

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

• ion

• atom

• compound

• molecule

What is the difference between a mixture and a compound?

• A mixture is a combination of substances that can be separated by chemical means, while a compound is a substance made up of elements that can be separated by physical means.

• A mixture is a combination of substances that can be separated by physical means, while a compound is a substance made up of elements that cannot be separated by physical means.

• A mixture is a combination of substances that can be separated by physical means, while a compound is a substance made up of elements that can be separated by both physical and chemical means.

• A mixture is a combination of substances that can be separated by physical means, while a compound is a substance made up of elements that can be separated by chemical means.

Which type of matter has a fixed composition and cannot be separated by physical means?

• substance

• compound

• element

• mixture

What are the three states of matter?

• condensed

• plasma

• solid, liquid, and gas

• vapor

What is the process called when a solid changes directly into a gas without passing through the liquid state?

• condensation

• evaporation

• melting

• sublimation

What is the difference between an element and a compound?

• An element is a pure substance made up of only one type of atom, while a compound is a substance made up of two or more different elements chemically combined.

• An element is a substance that cannot be broken down into simpler substances, while a compound can be broken down into its constituent elements.

• An element is a substance made up of two or more different atoms, while a compound is a substance made up of only one type of atom.

• An element is a mixture of different substances, while a compound is a pure substance.

What is the difference between a homogeneous mixture and a heterogeneous mixture?

• The difference between a homogeneous mixture and a heterogeneous mixture is the evenness of distribution and distinguishability of components.

• A homogeneous mixture can be separated into its components, while a heterogeneous mixture cannot.

• A homogeneous mixture has a uniform composition, while a heterogeneous mixture does not.

• A homogeneous mixture has visible components, while a heterogeneous mixture does not.

How can matter be classified based on its composition?

• By categorizing it into solids, liquids, and gases.

• By categorizing it into elements, compounds, and mixtures.

• By categorizing it into organic and inorganic matter.

• By categorizing it into metals, nonmetals, and metalloids.