Sodium chloride (table salt) is
a. element
b. atom
c. electron
d. molecule

The organism shown is a free-living one that is anchored to the bottom of ponds and streams during one stage of its life cycle what is the common name for the group to which this organism belong

Which of these conditions most likely produces an unstable isotope?

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?