During an experiment, you observe that two charged balloons repel each other. When you bring a charged plastic pipe in between the two charged balloons, both balloons are repelled from the pipe. What is the best conclusion statement about the balloons and pipe, based on the observations? They are oppositely charged, which is why they repel each other.
They are similarly charged, which is why they repel each other.
The balloons transferred charge to the pipe, making the pipe repel the balloons.
They must be different colors, which is why they repel each other.

a) the particles of the chair are strongly held together.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.