Covalent Bond Inquiry

Learning Target : I can identify and describe the types of bonds that can form between atoms and how those bonds determine the properties of the resulting molecules

What molecule is this? You've eaten it...

Answer these in your notebook...

1. Engage : In Lab 6 we tested sucrose, table sugar. Sucrose is used in candy. It has covalent bonds and is a covalent compound. What was the evidence of its properties in the lab? Did it melt? Did it dissolve? Did it conduct electricity?

2. Explore: Go to the MolView and try it out. Search for the following molecules with covalent bonds and draw their structures and write their chemical formulas:

DIRECTIONS : First click, "Get Started", then close that page.In the upper left , Search for the name of the molecule.

Click on "Model" in the upper middle of the site to try out different styles.

a.) Water : H₂O

b.) Methane : CH₄

_{c.) Carbon Dioxide : CO2}

d.) Glucose : C₆H₁₂O₆

3. Explain: a. )Use Google and write a definition for Covalent Bonds.

b.) Use Google, and define Lewis Structures.

4. Elaborate:

This is the Lewis Structure for Carbon

This is the Lewis Structure for Oxygen

Use Google to find and DRAW the Lewis structure for Water, Methane, and Carbon Dioxide. What do the dots represent?

5. Evaluate: Check Your Understanding with this practice Quiz on Covalent Bonds

Practice Quiz