Examine the table below and briefly familiarize yourself with just what elements make sea water salty. Remember that table salt is NaCl. List three elements that DO NOT contribute significantly to the saltiness of the ocean. Element: Element: Element: Reasoning:

The reason water is polar is because Group of answer choices the electrons spend more time circling the oxygen atom than the hydrogens. there is a complete transfer of electrons from the hydrogen to the oxygen. in polar molecules atoms share electrons evenly. hydrophilic molecules interact with water.

Word bank: oxygen, hydrogen, ionic, polar, nonpolar, hydrophilic, hydrophobic, hydrophobic force Question: Because water molecules are polar, anything________. or __________can dissolve in it (we call these substances to be ____________). In the case of salt (NaCl), it dissociates into Na+and Cl- in water. Na+ is positively charged therefore can interact with the __________________portion (slightly more negative) of the water molecules, whereas the negatively charged Cl- can interact with the ________________ portion (slightly more positive) of the water molecules. Vegetable oil, on the other hand, is a __________________ molecule, hence it's  ______________ Hydrophobic molecules do not interact with water and are excluded from water by______________ , forcing the oil to cluster together when added into water.