Sodium and Carbonate Ion Concepts

The video tutorial explains how to write the chemical formula for sodium carbonate (Na2CO3). It begins by identifying sodium's symbol and charge using the periodic table, followed by finding the carbonate ion and its charge from a list of common polyatomic ions. The tutorial then demonstrates how to balance the charges to form the correct chemical formula. Finally, it concludes with a mention of additional resources for further practice.

What is the symbol for sodium and its charge as found on the periodic table?

• K, +1

• Na, +1

• S, -2

• Na, -1

Which group in the periodic table does sodium belong to?

• Group 4

• Group 3

• Group 2

• Group 1

What is the formula and charge of the carbonate ion?

• CO3, -2

• CO2, -1

• CO4, -3

• CO3, +2

Where can you find the carbonate ion information?

• Elemental table

• Periodic table

• List of common polyatomic ions

• Chemical reactions chart

How do you balance the charges to form sodium carbonate?

• Add four sodium ions to balance the carbonate ion

• Add three sodium ions to balance the carbonate ion

• Add one sodium ion to balance the carbonate ion

• Add two sodium ions to balance the carbonate ion

What is the correct chemical formula for sodium carbonate?

• NaCO3

• Na3CO3

• Na2CO2

• Na2CO3