Chemical Formulas Practice

Front

How many atoms are there total in H₂O?

Back

There are 3 atoms total (2 Hydrogen + 1 Oxygen).

Front

Is H₂O an element or a compound?

Back

H₂O is a compound.

Front

How many atoms of hydrogen are there in H₂O?

Back

There are 2 atoms of hydrogen.

Front

How many oxygen atoms are there in H₂O?

Back

There is 1 atom of oxygen.

Front

What does the subscript in a chemical formula represent?

Back

The subscript represents the number of atoms of the element in the molecule.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H₂O.

Front

What is a molecule?

Back

A molecule is a group of atoms bonded together.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms bonded together.

Front

What does the coefficient in a chemical formula indicate?

Back

The coefficient indicates the number of molecules present.

Front

How many carbon atoms are there in C₆H₁₂O₆?

Back

There are 6 carbon atoms in C₆H₁₂O₆.