About This Chapter
What is matter? Can you explain its properties? If you struggle with answering those questions, then you need to watch our video lessons on the topic. This chapter will introduce you to the physical and chemical properties of matter. You'll learn about reactions and changes that occur in matter, too. Some of the things you can expect to learn after watching these lessons include:
- Properties of solids
- The process of evaporation
- How matter is conserved in chemical reactions
- The law of conservation
- How molarity relates to reactions in matter
- Concepts related to radioactive dating
|Matter: Physical and Chemical Properties||Discover the properties of matter.|
|Solids, Liquids, Gases & Plasma||Explore the different types of matter and their properties.|
|Phase Change: Evaporation, Condensation, Freezing & Melting||Examine the different phases of matter.|
|Common Chemical Reactions and Energy Change||Analyze the common types of chemical reactions.|
|Balancing Chemical Reactions: Conservation of Matter||Learn about how chemical reactions are balanced.|
|Moles, Molarity and Concentration of Solutions||Take a look at the concentration of solutions.|
|Nuclear Reactions: Changes in the Nucleus||Define nuclear reactions and explain how they differ from chemical reactions.|
|Determining Half-life and Age Using Radioactive Dating||Study half-life and age in radioactive dating.|
|Endothermic and Exothermic Reactions||Find out how these reactions work.|
1. Matter: Physical and Chemical Properties
How are substances identified? There are two major ways we can describe a substance: physical properties and chemical properties. Learn about how chemists use properties to classify matter as either a mixture or a pure substance.
2. States of Matter: Solids, Liquids, Gases, & Plasma
Learn the four states of matter in the universe: solid, liquid, gas and plasma. Learn about the differences in shape and volume among the four states, which of the states is the most common and why plasma conducts electricity.
3. Phase Change: Evaporation, Condensation, Freezing, Melting, Sublimation & Deposition
Substances on Earth can exist in one of four phases, but mostly, they exist in one of three: solid, liquid or gas. Learn the six changes of phase: freezing, melting, condensation, vaporization, sublimation and deposition.
4. Common Chemical Reactions and Energy Change
This lesson covers the five common types of chemical reactions: combination, decomposition, single-replacement, double-replacement, and combustion. You will learn how to predict what kind of chemical reaction will occur. You'll also explore how matter is conserved, but energy can change.
5. Chemical Reactions and Balancing Chemical Equations
In this lesson, you'll learn how to balance a chemical reaction equation using the conservation of matter law. You'll also learn how to write both word and formula equations, what the subscripts after a letter mean and what the numbers in front of compounds mean.
6. Avogadro's Number: Using the Mole to Count Atoms
How do we move from the atomic world to the regular world? Because atoms are so tiny, how can we count and measure them? And what do chemists celebrate at 6:02 AM on October 23rd each year? In this lesson, you will be learning how Avogadro's number and the mole can answer these questions.
7. Mole-to-Mole Ratios and Calculations of a Chemical Equation
Learn what a mole ratio is and how to determine and write the mole ratio relating two substances in a chemical equation in this video lesson. Also, learn to make mole-to-mole calculations and solve problems involving moles of substances.
8. Nuclear Reaction: Definition & Examples
Learn the differences between a nuclear reaction and a chemical reaction. Also learn how the nuclear reaction involves subatomic particles including protons and neutrons. Discover the different types of nuclear reactions including fission and fusion and also how a nuclear power plant works to produce energy.
9. Half-life: Calculating Radioactive Decay and Interpreting Decay Graphs
What causes a radioactive particle to decay? We'll never really know, but our best guess lies in probability. In this lesson, we are going to focus on the half-life, a way of measuring the probability that a particle will react.
10. Endothermic and Exothermic Reactions
Explore a chemical reaction at the molecular level. Learn about exothermic and endothermic reactions, what they look like and what happens when they occur. Understand enthalpy and how you can use it to predict whether a reaction will be exothermic or endothermic.
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Other chapters within the CLEP Natural Sciences: Study Guide & Test Prep course
- Atomic Structure
- Fundamentals of Thermodynamics
- Waves, Sound, and Light
- The Universe
- Atmospheric Science
- Biology of the Cell
- Biochemistry Foundations
- Chemical Nature of the Gene
- Cell Processes
- Introduction to Plant Biology
- Human Anatomy
- Animal Reproduction, Growth and Development
- Evolution: Theories and Principles
- The Origin and History of Life On Earth
- Phylogeny and the Classification of Organisms
- Human and Social Biology