In Part 3, the difference in charges between sugar and salt is observed. Sugar has polar molecules, meaning it has positive and negative charges within its structure. On the other hand, salt consists of ions, specifically positive sodium ions (Na+) and negative chloride ions (Cl-).
This difference in charges affects the behavior of water towards sugar and salt. When sugar is added to water, the positive and negative charges of sugar molecules are attracted to the positive and negative ends of the water molecules, respectively. This attraction results in the formation of hydrogen bonds between water and sugar molecules, causing the sugar to dissolve easily in water.
In the case of salt, the positive sodium ions (Na+) and negative chloride ions (Cl-) dissolve separately in water due to their charges. Water molecules surround these ions, forming hydration shells, where positively charged sodium ions are surrounded by negatively charged oxygen atoms of water molecules and negatively charged chloride ions are surrounded by positively charged hydrogen atoms of water molecules. This dissociation and surrounding of ions by water molecules allow salt to dissolve in water.
Overall, the difference in charges between sugar and salt influences the water's behavior and ability to dissolve them.
Summary of Part 3:
What do you notice that’s different about the charges on sugar and salt?
How does this difference in charges affect the water’s behavior to the sugar and salt?
1 answer