CK-12 Physical Science Concepts - For Middle School

3.9 Hydrogen Bonding Hydrogen Bonding Because of water’s polarity, individual water molecules are attracted to one another. You ...

http://www.ck12.org Chapter 3. Chemical Interactions TABLE3.5:Melting and Boiling Points of Some Polar and Nonpolar Covalent Com ...

3.9. Hydrogen Bonding http://www.ck12.org Explain why hydrogen bonds increase melting and boiling points of polar covalent comp ...

http://www.ck12.org Chapter 3. Chemical Interactions 3.10 Metallic Bonding Describe metallic bonds. Explain how metallic bonds ...

3.10 Metallic Bonding FIGURE 3.17 Metallic bonds. Metallic Bonds and the Properties of Metals The valence electrons surrounding ...

http://www.ck12.org Chapter 3. Chemical Interactions FIGURE 3.18 Metal worker shaping iron metal. Summary Metallic bonds are th ...

3.10. Metallic Bonding http://www.ck12.org How do metallic bonds relate to the properties of metals? The iron in the metal work ...

http://www.ck12.org Chapter 3. Chemical Interactions 3.11 Alloys Define alloy. Describe examples of alloys. Metals such as iro ...

3.11. Alloys http://www.ck12.org FIGURE 3.19 Brass saxophone: Brass is an alloy of copper and zinc. It is softer than bronze and ...

http://www.ck12.org Chapter 3. Chemical Interactions http://en.wikipedia.org/wiki/List_of_alloys Review What is an alloy? Descr ...

3.12 Chemical Reaction Overview 3.12 Chemical Reaction Overview Define chemical reaction. Describe what happens during chemical ...

http://www.ck12.org Chapter 3. Chemical Interactions FIGURE 3.20 A:During a chemical reaction, chemical changes take place. Some ...

3.12. Chemical Reaction Overview http://www.ck12.org TABLE3.6:Types of Chemical Reactions Type of Reaction General Equation Exam ...

http://www.ck12.org Chapter 3. Chemical Interactions http://www.youtube.com/watch?v=66kuhJkQCVM MEDIA Click image to the left fo ...

3.13. Reactants and Products http://www.ck12.org 3.13 Reactants and Products Identify reactants and products in chemical reacti ...

http://www.ck12.org Chapter 3. Chemical Interactions Reactantsare substances that start a chemical reaction. Productsare substa ...

3.13. Reactants and Products http://www.ck12.org Q:Watch the animation of a similar chemical reaction at the following URL. Can ...

http://www.ck12.org Chapter 3. Chemical Interactions 3.14 Reversible Reactions Give examples of irreversible and reversible che ...

3.14 Reversible Reactions Fuel + O 2 →CO 2 + H 2 O In a complete combustion reaction, fuel and oxygen are the reactants and the ...

http://www.ck12.org Chapter 3. Chemical Interactions A:The chemical equation would be: H 2 + O 2 ⇀↽H 2 O Balancing Act In a reve ...