Counting Atoms

Front

What is the formula for water?

Back

H₂O

Front

How many atoms of Hydrogen are in one molecule of water (H₂O)?

Back

2

Front

How many atoms of Oxygen are in one molecule of water (H₂O)?

Back

1

Front

What does a subscript in a chemical formula indicate?

Back

The number of atoms of the element in the molecule.

Front

In the formula C₆H₁₂O₆, how many different elements are present?

Back

3 (Carbon, Hydrogen, Oxygen)

Front

How many Magnesium atoms are in the compound 10MgCl₂?

Back

10

Front

What is the total number of atoms in the compound C₆H₁₂O₆?

Back

24 (6 Carbon + 12 Hydrogen + 6 Oxygen)

Front

What is a chemical formula?

Back

A representation of a substance using symbols for its constituent elements.

Front

What does the coefficient in a chemical formula represent?

Back

The number of molecules or formula units of the substance.

Front

How many Chlorine atoms are in the compound MgCl₂?

Back

2