Stoichiometry Quiz (Let's test your basic knowledge!)

What is the first step you must do to solve stoichiometry problem?

• Write a Balanced Equation.

• Write an Unbalanced Equation.

• Ask the teacher

• Ask your friend to do it for you.

A mole ratio can be a ratio of

• A reactant to a product

• A product to a reactant

• A product to another product.

• A reactant to another reactant.

• All of the above.

What is Atomic Mass Unit (amu)?

• Defined as the amount of entities present in a substance.

• Defined as one-twelfth of the mass of the 12C isotope of carbon

• Is a mass in grams (g) of the substance.

• Indicate the number of atoms of each type of element.

Hydrated salt is a salt that has water molecules trapped within the crystal lattice.

• True

• False

Tags

NGSS.HS-ESS2-5

Imagine you are baking cookies. You have a recipe that calls for 1 cup of flour and 2 sticks of butter.

• Scenario 1: You only have 1 cup of flour, but 3 sticks of butter.

• Scenario 2: You have 2 cups of flour, but only 1 stick of butter.

In which scenario will you be able to bake the maximum number of cookies, even though you might have leftover ingredients?

• Scenario 1

• Scenario 2

What is it called when there is a leftover in chemical reaction?

_________ Reactant