CuCrO4 CuCrO4 Representation 1 Representation 2 000 Shown here are the melting points of four different ionic compounds. Substance Melting Point (°C) NaCl 801 MgO 2,852 Nal 661 NaBr 747 Recall that a particulate representation of NaCl is: NaCl This model could be improved by showing the difference in sizes of the ions in NaCl. NaCl

World of Chemistry, 3rd edition
3rd Edition
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Chapter10: Energy
Section: Chapter Questions
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1. Consider the following statement:

Electric current is the consequence of the movement of charged particles.

The chemist pours grains of solid NaCl into the gap between the wires. Based on the particulate representations attached in the 1st image, predict if the light bulb will glow with the addition of grains of solid sodium chloride to the container. Include reasoning that supports your prediction.

 

2. Shown in the second image are the melting points of four different ionic compounds and the particulate representation of NaCl. Draw particulate representations of MgO, NaI, and NaBr. Be sure to represent both the charges of the ions and their sizes in your drawings.

 

3. Use the particulate representations you have drawn and Coulomb's law to explain the trends in boiling point shown in the table.

CuCrO4
CuCrO4
Representation 1
Representation 2
000
Transcribed Image Text:CuCrO4 CuCrO4 Representation 1 Representation 2 000
Shown here are the melting points of four different ionic compounds.
Substance
Melting Point (°C)
NaCl
801
MgO
2,852
Nal
661
NaBr
747
Recall that a particulate representation of NaCl is:
NaCl
This model could be improved by showing the difference in sizes of the ions in NaCl.
NaCl
Transcribed Image Text:Shown here are the melting points of four different ionic compounds. Substance Melting Point (°C) NaCl 801 MgO 2,852 Nal 661 NaBr 747 Recall that a particulate representation of NaCl is: NaCl This model could be improved by showing the difference in sizes of the ions in NaCl. NaCl
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