Question

Anyone can help me with this. plzzzz
Objective: Create models of actual molecules using marshmallows.

Materials:
Mini color marshmallows Each person 4 toothpicks colored pencils

Procedure:
1. Divide the marshmallows up by color
a. Nine _______________ marshmallows – hydrogen
b. Three _______________ marshmallows – oxygen
c. One _______________ marshmallow – nitrogen
d. One _______________ marshmallow – carbon
e. One _______________ marshmallow- sulfur

Answer 1

2. Using the toothpicks and the appropriate marshmallow, make the following molecules by connecting the marshmallows with toothpicks. The marshmallows symbolize atoms and the toothpicks symbolize the bonds between atoms. Pay special attention to the type of bond noted in each box.

3. Draw a model of the molecules formed. Be sure to color the marshmallows with the corresponding colors. ( you can take pictures of your models and paste them, use the shapes on the “insert” tab, or draw them by hand and scan the document)

Answer 2

4. Give an example of how each compound is used or found in nature. Be sure to use complete sentences.

Water - _______________________________________________________________
____________________________________________________________________________________________________________________________________________
Hydrogen - ____________________________________________________________
____________________________________________________________________________________________________________________________________________
Ammonia - ____________________________________________________________
____________________________________________________________________________________________________________________________________________
Carbon Dioxide - ________________________________________________________
____________________________________________________________________________________________________________________________________________
Hydrogen Sulfide -_______________________________________________________
____________________________________________________________________________________________________________________________________________

Go to the following simulation http://phet.colorado.edu/en/simulation/build-a-molecule and construct the molecules on the two collections. Be sure to look at the 3D models of each molecule after you build it.

Conclusion:
1. Describe how the molecular models you assembled are different from the 3D molecules on the simulation.




2. Describe how the molecular models you assembled are similar to real molecules.




3. Describe how molecular models might prove to be helpful to scientists.

Answer 3

Which part do you need help with?

Answer 4

If it is the conclusion:
1. When you read the formula, the geochemistry may not be correct but the liaisons would be correct. For example H2O could be linear or bent.

2. They are similar where the number of liaisons/bonds are being used.

3. The models may help when finding how the molecules would react with others, also the polarity.

Answer 5

geochemistry has to to with geology, the word you're looking for is "stereochemistry".

Answer 6

Right oops

Answer 7

I need help with question 4

Answer 8

I assume water and carbon dioxide you already have.
For hydrogen it is used in acid and basic chemical reactions. Pure hydrogen can be used in lamps.
For ammonia, it is often and most used in insecticides. Naturally it is in the air. By organic waste in gas form.
For hydrogen sulfide, is present near swaps and sewers. It is the smell of organic decay. It can be used to modify parts in a refinery because of it's behavior of metallic catalysts.