elements, compounds, mixture

What are the basic building blocks of matter that cannot be broken down into simpler substances?

• Molecules

• Cells

• Quarks

• Atoms

How are compounds formed?

• Through physical changes in state

• Through exposure to sunlight

• Through biological processes

• Through chemical reactions involving the combination of two or more elements.

What is the process of separating the components of a mixture based on their physical properties?

• Evaporation separation

• Chemical synthesis

• Magnetic separation

• Fractional distillation

What is the chemical symbol for Oxygen?

• N

• O

• C

• H

Which property of elements refers to their ability to be hammered into thin sheets?

• ductility

• brittleness

• conductivity

• malleability

In compounds, elements are chemically combined in fixed ratios. True or False?

• False

• Maybe

• Sometimes

• True

Which method of separation involves boiling a liquid and then condensing the vapor back into a liquid?

• Filtration

• Distillation

• Evaporation

• Sublimation

What is the chemical symbol for Sodium?

• Na

• Sn

• Su

• So

Which property of elements refers to their ability to conduct electricity?

• Electron movement

• Electrical conductivity

• Electricity flow

• Conductive property

What is the difference between a compound and a mixture?

• A compound is chemically bonded, while a mixture is not.

• A compound is made up of only one substance, while a mixture is not.

• A compound is a homogeneous mixture, while a mixture is not.

• A compound is physically separated, while a mixture is not.