Part A:
- The statement that "the partial charge of the oxygen is negative and the partial charge of the hydrogen is positive" is True. In water (H₂O), oxygen is more electronegative than hydrogen, which leads to the oxygen atom having a partial negative charge and the hydrogen atoms having partial positive charges.
Part B:
- When NaCl (salt) is added to water, the NaCl:
- separates into ions (True)
- most likely will conduct electricity (True)
- does not separate into ions (False)
- does not display covalent molecule properties (False)
Part C:
-
When sugar is added to water, the sugar molecule:
- Has an attraction to the water molecules (True)
- does not separate into ions (True)
-
The ionic substance between the two tested substances (NaCl or C₁₂H₂₂O₁₁) is:
- Salt (NaCl) (True)
-
Sugar is not considered an ionic substance because:
- Because it does not contain charged particles and is made up of non-metals (True)
- does not separate into its separate ions (False)
- does not contain charged particles (True)
- is not made up of metals and non-metals that are charged particles (False)
Please let me know if you need further clarification or assistance!