Electron and Points Essay Sample

Insert completed informations tabular arraies for each portion of the lab. Be certain that the information tabular arraies are organized and include units when necessary. 1. Melting Point ( 4 points )

2. Conductivity ( 4 points )
Part II: Decision
Answer the undermentioned inquiries in your ain words. utilizing complete sentences. 1. Based on your observations in the lab. categorise each unidentified compound as ionic or covalent. Explain in one or two sentences why you categorized the compounds the manner that you did. ( 5 points )

2. Explain. in your ain words. the differences between ionic and covalent bonding that history for the differences in their thaw points. ( 4 points )

3. In order to carry on an electrical current. a substance must hold charged atom s ( ions or negatrons ) that are free-moving ( able to travel approximately throughout the sample ) . a. Why do you believe ionic compounds are non able to carry on electricity as solids. even though they can as liquids and in solution? ( 2 points )

B. Based on your research and observations. why do you believe pure ( distilled ) H2O does non carry on electricity but tap H2O normally does? ( 2 points )

inquiry.
1. Which type of compound normally has higher runing points: ionic compounds or covalent compounds? What is the ground for this difference in runing points? ( 3 points ) 1. Make ionic compounds conduct electricity as: ( 3 points )

1. Solids?
2. Liquids?
3. Aqueous solutions ( when the ionic compounds are dissolved in H2O ) ? 1. Make covalent compounds conduct electricity as: ( 3 points ) 1. Solids?
2. Liquids?
3. Aqueous solutions ( when the covalent compounds are dissolved in H2O ) ?