Which pair of atoms has the highest electronegativity difference?
2 answers:
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<h2>Answers to the rest of the assignment:</h2>
**Check for proof photos at the bottom.**
<h2>_____________________________________</h2>Use the table to compare the solubilities of substances. Check all of the boxes that apply.
A. Aspirin is less soluble than table salt, but more soluble than carbon dioxide.
C. A saturated solution of table sugar is more concentrated than a saturated solution of table salt.
<h2>_____________________________________</h2>The solubility of glucose at 30°C is 125 g/100 g water. Classify a solution made by adding 550 g of glucose to 400 mL of water at 30°C. Explain your classification, and describe how you could increase the amount of glucose in the solution without adding more glucose.
Answer: The solution is saturated. At 30°C, 500 g of glucose will dissolve in 400 mL of solution. Of the 550 g glucose added, only 500 g will dissolve and 50 g will precipitate out. The amount of glucose in the solution can be increased by heating the solution because the solubility of solids tends to increase with temperature.
<h2>_____________________________________</h2>Use the graph to identify the number, letter, or word that completes each statement.
• The solubility of Solute D <u>decreases</u> as temperature increases.
• The solubility of Solute <u>E</u> increases the most as temperature increases.
• The solubility of Solutes C and D is the same at <u>20</u>°C.
• As the temperature increases from 0 to 100, the solubility only changes by about <u>5</u> grams for Solute B.
<h2>_____________________________________</h2><h2>Explanation:</h2>In the provided table shows the solubility of 4 different substances. The solubility number for Aspirin is smaller than the number for table salt, but larger than the number for carbon dioxide. Since the solubility if sugar is larger than table salt, its saturated concentration would be higher.
In the given chart, the line representing solubility of solute D decreases as temperature increases. The line for solute E increases the most. At 20°C, the lines of C and D are about the same height.
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