Question

explain why a negatively charged balloon is attracted to a wall that has a net neutral charge, using terms like repel and positively charged surface. (p 125)

Explanation:

When a negatively - charged balloon is brought near a neutral wall, the electrons in the wall are repelled (like charges repel). This leaves a positively - charged surface on the wall near the balloon. Opposite charges attract, so the negatively - charged balloon is attracted to the positively - charged surface of the wall.

Answer:

A negatively - charged balloon repels electrons in the neutral wall, creating a positively - charged surface on the wall. Opposite charges attract, so the balloon is attracted to the wall.