A group of students collects data to determine whether compounds were ionic or covalent. They placed each compound in a small bo
wl and stuck two open ends of a battery-powered circuit in the compound. image Based on the student’s data, can they determine which substances are ionic, and which are covalent?
An epidemic (from Greek ἐπί epi "upon or above" and δῆμος demos "people") is the rapid spread of disease to a large number of people in a given population within a short period of time.
