Semester 2 Final Exam: Vocabulary Review

This theory explains the states of matter, and is based on the idea that matter is composed of tiny particles that are always in motion. This theory helps explain observable properties and behaviors of solids, liquids, and gases.

• Big Bang Theory

• Law of Conservation of Matter

• Kinetic Molecular Theory 

• Law of Conservation of Mass

Match the following molecules to their name.

• SO₂

• sulfuric acid

• SO₃^2-

• sulfur dioxide

• H₂SO₄

• sulfate

• HS

• sulfite

• SO₄^2-

• hydrogen sulfide

What type of reaction is this?

Label each type of reaction

a

b

c

decomposition

double replacement

synthesis

Temperature, particle size, concentration, and use of a catalyst are all factors that affect the _______ of a chemical reaction.

Label the diagram

a

b

subscript

coefficient

The part highlighted in yellow is from the:

• molar mass of aluminum

• mole ratio

• molar mass of aluminum oxide

• the number of protons in each atom

When do you divide by molar mass?

• converting from grams to moles

• converting from grams to particles

• converting from liters to grams

• converting from moles to grams

What is the molar mass of C₂₇H₄₆O

• 342.3 g/mol

• 386.65 g/mol

• 303.47 g/mol

• 369.59 g/mol

Which substance has light being emitted with the largest wavelength?

• strontium chloride

• sodium chloride

• cesium chloride

• copper (II) chloride