Matter and Atoms Review

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 different elements are chemically bonded together.

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a combination of two or more substances that are not chemically bonded, while a compound is a substance formed from two or more elements that are chemically bonded.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition throughout, meaning its components are evenly distributed.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture where the components are not evenly distributed, and different parts can be seen.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H2O, indicating it is made of two hydrogen atoms and one oxygen atom.

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 the significance of the periodic table?

Back

The periodic table organizes all known elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What is the definition of mass?

Back

Mass is a measure of the amount of matter in an object, typically measured in grams or kilograms.