Spring 2021-2022 Semester 2 Final Exam review

What does NOT happen in a chemical change?

• Color and oder change

• Energy, light, and heat can be given off

• It can turn into a solid, gas, or liquid

What are Chemical Reactions?

• The changes in Tempruture, Pressure, Volume, and # of moles

• The study of the combination of Carbon atoms to Hydrogen atoms

• The process of one substance combining and changing into a new substance

• The study of transfering Energy from one substance to another substance

What is a Mole?

• A unit of mesurments

• A label for an element/substance

• An equation

Which is NOT a convetion in the Factor Label Method?

• Length (meters)

• Mass (grams)

• Time (seconds - hours - minuets)

• Pressure (Volume - Tempruture)

The maximum amount of product that can be produced from a given amount of reactant is...

• Theoretical yield

• Actual yield

• Percent yield

How many moles of iron(III) oxide will be produced if 5 moles of oxygen are present?

4Fe + 3O2 --> 2Fe2O3

• 3.33 mol Fe2O3

• 2.33 mol Fe2O3

• 3 mol Fe2O3

What is salt?

• An Ionic Compound

• A negative Ion

• A posotive Ion

• A product

What is a Base

• Something with a pH of 7

• Something with a pH of 8-14

• Something with a pH of 1-6

What is an Acid

• Something with a pH of 7

• Something with a pH of 8-14

• Something with a pH of 1-6

What is a Neutral (water)

• Something with a pH of 7

• Something with a pH of 8-14

• Something with a pH of 1-6