Benchmark Practice - Element Compound Mixture

Front

What is a heterogeneous mixture?

Back

A mixture where the components are not uniformly distributed, and different parts can be seen, such as oil and water.

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout, such as saltwater.

Front

Define an element.

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

Define a compound.

Back

A pure substance formed when two or more elements are chemically bonded together.

Front

What is a pure substance?

Back

A material that has a constant composition and consistent properties throughout.

Front

What is the difference between elements and compounds?

Back

Elements are pure substances that consist of only one type of atom, while compounds are made up of two or more different types of atoms chemically bonded.

Front

What is an example of a mixture?

Back

Milk is an example of a mixture because it contains water, fats, proteins, and other substances.

Front

What is the periodic table?

Back

A tabular arrangement of all known elements, organized by increasing atomic number.

Front

Can compounds be separated by physical means?

Back

No, compounds cannot be separated by physical means; they require chemical reactions to break down.

Front

What is the main characteristic of a pure substance?

Back

A pure substance has a fixed composition and distinct properties.