Activity No. 2
ALLOTROPES OF CARBON AND SOME OF ITS COMPOUNDS
Answer Sheet
A. Pictures of the Molecular/Structural Composition of the following:
Graphite
Diamond
Fullerene
Questions:
1. Define allotrope
2. How does the arrangement of atoms differ in the above allotropes?
3. How do the properties of these three allotropes vary?
4. What relationship does the bonding pattern have to an allotrope’s properties.
5. Do any of the carbon allotropes conduct electricity? Explain
6. What are the different applications of the above allotropes?
6. What is catenation?
7. How does Carbon exist in nature?
B. Amorphous Form of Carbon
1. What happened when charcoal was placed in water before heating?
2. What happened when charcoal was placed in water right after heating?
3. Color of the water added with ink:
Color of the filtrate after the solution was heated with activated charcoal:
4. What was found at the bottom of the beaker?
.
5. Give two commercial uses of this form of carbon:
C. Preparation of Carbon dioxide through Combustion
1. What was produced in the lime water?
2. Write the equation for the reaction
3. What would be the electron dot structure of carbon dioxide?
D. Properties of Carbonates and Bicarbonates
1. Solubility
Which precipitates/dissolves with the addition of acetic acid?
2. Hydrolysis
What is the color reaction of each of the following aqueous solutions with:
Red litmus paper
NaHCO3
Na2CO3
What is Hydrolysis?
Blue litmus paper
Acidic/Basic