According to the Universal Law of Gravitation, the
Earth's gravitational pull on the sun is stronger than the sun's pull on the Earth
planets stay in motion because they are already moving
gravitational pull of the sun keeps the planets moving in curved orbits
sun is not in motion and will remain still unless acted on by an outside force
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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.