The period of a ripple on a lake is half a second. what is the frequency of the wave

no but i do not usually comment or use my voice that much when it comes to social media

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.

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)