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Experiment 7: Chemical Bonding and Conductivity

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by

Jan Ricci Munoz

on 7 October 2013

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Transcript of Experiment 7: Chemical Bonding and Conductivity

Experiment 7

Background Information
Conductivity
- property that describes the capability of substances to send out electric current.
Electric Current
- the product of negative movement of particles.
Chemical Bonds
- forces that hold atoms of an element together to form compounds.
Ionic Bonds
- formed by oppositely charged ions that arise through the transfer of electrons between a metal and a non-metal.
Covalent Bonds
- are formed through equal sharing of electrons between two atoms particularly non-metals.


Procedures
1. The materials and the reagents were prepared.
2. Each of the solid samples' conductivity was tested by using a conductivity apparatus.
3. Then the samples were dissolved in distilled water and tested as well.
4. Afterwards, sodium chloride and sucrose were dissolved in ethanol and tested.
Results
Conclusion
We therefore conclude that we can differentiate the type of chemical bond through its conductivity. Metals are conductors of electricity, that is why if a reagent can conduct electricity, the bond is ionic since an ionic bond is formed between metal and non-metal elements.
Chemical Bonding and Conductivity
Group 7 Members:
Hazel Morales (Leader)
Aaron Khryss Panag Krisshia Lynn Orola
Jan Ricci Munoz Beata Olaivar

Materials
Alcohol Lamp
Evaporating Dish
Crucible Tong
Conductivity Apparatus
Graduated Cylinders, 10 mL
Test Tubes, 8 pcs
Test Tube Rack, 1 pc
Stirring Rod

Reagents
Distilled Water
Potassium Chlorate
Ethanol
Sucrose
Sodium Chloride
Magnesium Chloride
Objectives
To be able to know the degree of conductivity of each substance and solution.

To determine the type of bond in each sample.

To understand the relationship between the conductivity and the type of bonding.

From the results of the experiment, how will you operationally define chemical bonding?
From the results of the experiment, we define chemical bonding as an effect that causes certain atoms to join together to form enduring structures that have unique physical and chemical properties.
Based on the conductivity results, identify the type of bonding that occurs in each solution
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