Counting Atoms

Front

What is the term for the number written to the lower right of an element that indicates the number of atoms of that element in a compound?

Back

subscript

Front

What principle states that the total amount of matter is neither created nor destroyed in a chemical reaction?

Back

Law of conservation of mass

Front

In the compound Fe2O3, how many atoms of Iron (Fe) are present?

Back

2

Front

What do we call a group of two or more atoms held together by covalent bonds?

Back

Molecule

Front

In the compound H2O, how many atoms of hydrogen (H) are present?

Back

2

Front

What is the term for the chemical formula that shows the number and type of atoms in a molecule?

Back

Molecular formula

Front

What is the difference between a subscript and a coefficient in a chemical formula?

Back

A subscript indicates the number of atoms of an element in a molecule, while a coefficient indicates the number of molecules.

Front

What is the term for a substance made up of two or more different types of atoms bonded together?

Back

Compound

Front

How many total atoms are in the molecule C6H12O6?

Back

24

Front

What is the significance of the Law of conservation of mass in chemical reactions?

Back

It implies that the mass of reactants equals the mass of products.