Counting atoms

Front

What is the total number of atoms in the compound H₂C₃O₄N₅?

Back

14

Front

How many Oxygen atoms are present in H₂O?

Back

1

Front

What is the coefficient in the chemical formula 3H₂O?

Back

3

Front

How many Nitrogen atoms are in the compound (NH₄)₂CrO₄?

Back

2

Front

How many different elements are present in the compound Mg₂As₃COHNi₂?

Back

6

Front

Define an atom.

Back

The smallest unit of a chemical element, consisting of a nucleus surrounded by electrons.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What does the subscript in a chemical formula indicate?

Back

The number of atoms of the element in the molecule.

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a chemical formula to indicate how many molecules are involved.

Front

How do you determine the total number of atoms in a compound?

Back

Add the number of atoms of each element present in the compound.