Molecules and compounds

Front

What do we call a substance consisting of a single atom?

Back

Element

Front

In the chemical equation 2H₂O, what does the number 2 represent?

Back

Coefficient

Front

In the chemical formula 2H₂O, how many Hydrogen atoms are present?

Back

4

Front

When compounds form, what happens to the individual chemical properties of the elements?

Back

They lose their individual chemical properties and take on new properties.

Front

What is the smallest unbreakable unit of a compound called?

Back

Molecule

Front

What is a substance made of two or more different elements chemically bonded together?

Back

Compound

Front

What do we call the number written below an element symbol in a chemical formula?

Back

Subscript

Front

What is the term for a combination of two or more atoms that are chemically bonded?

Back

Molecule

Front

What is the difference between an element and a compound?

Back

An element consists of only one type of atom, while a compound consists of two or more different types of atoms chemically bonded together.

Front

What is the chemical formula for water?

Back

H₂O