Counting Atoms in Chemical Formulas and Equations

Front

How many atoms of carbon (C) are in C6H12O6?

Back

6

Front

What is the term for the number BELOW an element in a chemical formula?

Back

subscript

Front

How many hydrogen atoms are in the reactant side of this equation? H2 + O2 -> H2O

Back

4

Front

How many atoms of Nitrogen (N) are in NH3?

Back

1

Front

How many Sodium (Na) are in 6NaCl?

Back

6

Front

What does a subscript in a chemical formula indicate?

Back

The number of atoms of the element in the molecule.

Front

What is the difference between a coefficient and a subscript?

Back

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

Front

In the formula C2H5OH, how many total hydrogen atoms are present?

Back

6

Front

What is the total number of atoms in the molecule C3H8?

Back

11

Front

How many oxygen atoms are in the formula 2H2O?

Back

2