Chemical Formulas and Their Components

What do molecular formulas indicate about a molecule?

• The weight of the molecule

• The elements and their quantities in the molecule

• The color of the molecule

• The shape of the molecule

Tags

NGSS.MS-PS1-1

In the molecular formula H2O, what does the subscript '2' represent?

• Two atoms of hydrogen

• Two elements in the molecule

• Two molecules of water

• Two atoms of oxygen

Tags

NGSS.MS-PS1-1

If an element in a molecular formula does not have a subscript, what does it imply?

• There are no atoms of that element

• The number of atoms is unknown

• The element is not part of the molecule

• There is one atom of that element

Tags

NGSS.MS-PS1-1

How do we indicate the presence of multiple molecules in a molecular formula?

• By placing a coefficient in front of the formula

• By using a subscript

• By changing the element symbols

• By writing the formula multiple times

What is the term for the number placed in front of a molecular formula to indicate the number of molecules?

• Subscript

• Prefix

• Coefficient

• Exponent