You receive an annual report of the results of your city's tap water testing. The report shows that there are small amounts (a fraction of a milligram per liter) of a water-soluble chemical called dichloroethene present. You want to determine whether this is a toxic chemical. Describe a study that could be conducted to measure its toxicity. Draw a sample dose-response graph for mortality that includes a threshold dose and LD50. Make sure you label each axis.

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.