Elements, Compounds, and Mixtures

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. It consists of only one type of atom.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together in a fixed ratio.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.

Front

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

Back

A homogeneous mixture has a uniform composition throughout (e.g., saltwater), while a heterogeneous mixture has a non-uniform composition (e.g., salad).

Front

What is the Periodic Table?

Back

The Periodic Table is a tabular arrangement of all known elements, organized by increasing atomic number and grouped by similar properties.

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas, each with distinct properties.

Front

What is a chemical bond?

Back

A chemical bond is the force that holds atoms together in a compound, which can be ionic or covalent.

Front

What is an atom?

Back

An atom is the smallest unit of an element that retains the properties of that element.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together, which can be of the same or different elements.

Front

What is an example of a compound?

Back

Water (H2O) is an example of a compound, consisting of two hydrogen atoms and one oxygen atom.