Question

question 7 1 pts which of the following forms hydration shells? sodium chloride oil oxygen question 8 1 pts how many valence electrons does hydrogen have? 1 4 2

Explanation:

• For Question 7: Hydration shells form around ions in water. Sodium chloride dissociates into ions in water, so it forms hydration shells. Oil is non - polar and oxygen is a gas that does not form hydration shells like ionic compounds.
• For Question 8: Hydrogen has an atomic number of 1. Its electron configuration is 1s¹. The outermost (valence) shell has 1 electron.

Answer:

• Question 7: sodium chloride
• Question 8: 1