Counting Atoms

Front

What is the chemical formula for sodium carbonate?

Back

Na₂CO₃

Front

How many total atoms are in the compound C₂H₈O?

Back

11

Front

What are the parts of an atom?

Back

Protons, Neutrons, Electrons

Front

How many elements are in the chemical formula NaHCO₃?

Back

4

Front

What is the correct chemical formula for 1 atom of nickel and 2 atoms of fluorine?

Back

NiF₂

Front

What does the subscript in a chemical formula indicate?

Back

The number of atoms of the element in the compound.

Front

How many carbon atoms are in 2Na₂CO₃?

Back

2

Front

What is the total number of hydrogen atoms in C₂H₈O?

Back

8

Front

What is the significance of the coefficients in a chemical formula?

Back

They indicate the number of molecules or formula units.

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 atoms bonded together.