Counting Atoms & Molecules

Front

How many elements are in C6H12O6?

Back

3

Front

HCl has how many atoms of each element?

Back

H=1, Cl=1

Front

How many molecules of water do I have in 4H2O?

Back

4

Front

If I have two molecules of Sodium Nitrate (2NaNO3), how many total atoms are there?

Back

10

Front

What is a valence electron?

Back

An electron in the outer most occupied energy level of an atom.

Front

What is the chemical formula for water?

Back

H2O

Front

What does the subscript in a chemical formula indicate?

Back

The number of atoms of the element in the molecule.

Front

What is the total number of atoms in one molecule of glucose (C6H12O6)?

Back

24 (6 Carbon, 12 Hydrogen, 6 Oxygen)

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of two or more atoms bonded together.

Front

How many atoms are in one molecule of NaCl?

Back

2 (1 Sodium, 1 Chlorine)