Journal Entry:

What do all the numbers mean in a chemical equation?

Learning Intentions

• You will learn how to write down reactants from word descriptions of a reaction.

• You will learn how to predict what the products of a reaction will be based on the reactants.

• You will learn what a mole is used for in Chemistry and how Avogadro's number relates to a mole.

• You will learn how to make conversion between number of particles, moles and mass of substances.

Closing Task:

You can take a quiz to determine if you can write formulas for reactants from word descriptions of a reaction, determine the products formed form the reaction, balance the chemical equation and determine formula weight and percent composition of one of the products.

You can convert mass of a substance to moles and number of molecules

Content Standards being covered:

LO 1.17 Students can express the law of conservation of mass quantitatively and qualitatively using symbolic representations and particulate drawings.

LO 1.18 Students  can apply conservation of atoms to the rearrangement of atom in various processes.

LO 3.1 Students can translate among macroscopic observations of changes, chemical equations and particle views.

LO 3.2 Students can translate an observed chemical change into a balanced chemical equation and justify the choice of equation type (molecular ionic or net ionic) in terms of utility for the given circumstances.

LO 1.4 Students can connect the number of particles, moles, mass and volume of substances to one another, both qualitatively and quantitatively.