Background: Compounds are the result of two or more atoms being chemically combined, whether iconic, covalent, or metallic. In this lab, you will construct models of compounds using gumdrops and identifying important information for these compounds.

Materials: Toothpicks, gumdrops, colored pencils

Procedures:

  1. You will receive a bag of gumdrops. Not eat any until your teacher has given you permission at the end of the lab.
  2. You have a specific number of each color. Using colored pencils, correctly color in the candy key below. Use the number of gumdrops to guide you along.

Candy Compounds - Candy Key
Count the number of gumdrops you have for each color and match to the key. Use a crayon or colored pencil to color each gumdrop. Match the colors to the numbers!
4- Hydrogen / 3- Chlorine / 2- Oxygen
2- Sodium / 1- Carbon / 1- Calcium
  1. Have your teacher sign here to indicate your color the key correctly. ______
  2. On the following page, there is a chart. The chart will list the formula of the compound and what it should look like. With your group, you will need to do the following for each compound:
  3. Information box:
  4. List the types of atoms that make up each compound.
  5. List the number of each type of atom.
  6. Type of Bond box:
  7. Based on what you know about the elements that make up the compound, decide if it’s an ionic or covalent bond.
  8. Gumdrop Model box:
  9. Build the actual model of the compound. Using colored pencils, color in each circle to represent the gumdrop atom.
  10. Dot Structure box:
  11. Draw electron dot diagram for each atom, and show whether electrons are shared or transferred. Include changes in ions are formed.

Information:
List the names of the atoms and number of each / Type of Bond:
Ionic or Covalent / Gumdrop Model:
Make the gumdrop compound and color the diagram / Dot Structure:
Show the electron dot diagrams and charge/bonds
H2
NaCl
H2O
Na2O
CaCl2
CH4
CO2
CHCl3

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