Journal Entry:
What is the charge of a sodium ion? What about a chloride ion? What would the formula be for sodium chloride?

Learning Intentions

• We will learn how to determine the charge of an ion.
• We will learn how to write a formula for an ionic compound using the rule of zero charge.
• We will learn how to calculate molar mass of a compound.

Closing Task:

 You can complete a Sweet 16 bracket of Chemistry by determining the charge on an ion, writing the proper formula for a compound, counting atoms and determining molar mass.

Content Standards being covered:

Student understands what the letters and numbers stand for in a compound formula, can use those letter and numbers to determine how many of each type of element there are in a formula.

Student can create mathematical representations of chemical reactions and use them to make calculations about products and reactants.

Students can use mathematical representations to support the claim that atoms, and therefore mass, are conserved during a chemical reaction. (HS-PS1-7 and CCC Energy and Matter)